aliaje de aluminiu nanostructurate cu - Prezentare
aliaje de aluminiu nanostructurate cu - Prezentare
aliaje de aluminiu nanostructurate cu - Prezentare
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Contract nr.: 72-205<br />
Titlul proiectului:<br />
ALIAJE DE ALUMINIU NANOSTRUCTURATE<br />
CU CARACTERISTICI FIZICO – MECANICE<br />
INALTE<br />
Coordonator proiect:<br />
Universitatea POLITEHNICA din Bu<strong>cu</strong>resti prin<br />
Centrul <strong>de</strong> Cercetare si Expertizare Materiale<br />
Speciale UPB-CEMS<br />
Director proiect:<br />
prof. dr.ing. Gabriela POPESCU
Parteneri în n consorŃiu<br />
P1 - Institutul NaŃional <strong>de</strong> Cercetare Dezvoltare pentru Metale Neferoase şi Rare -<br />
INCDMNR – IMNR Bu<strong>cu</strong>reşti<br />
P2 - Universitatea Tehnica „Gheorghe Asachi” Iaşi - Centrul <strong>de</strong> Cercetare si Transfer<br />
Tehnologic Polytech<br />
P 3 - SC RANCON SRL , Iaşi<br />
Buget/cofinantare - Ia contractare<br />
Participant<br />
CO<br />
2008 2009 2010 2011 TOTAL<br />
B C B C B C B C B C<br />
54.716<br />
172.964 367.320 20.000 615.000<br />
P 1 20.000 220.000 485.000 15.000 25.000<br />
750.000 15.000<br />
P 2 30.000 100.000 260.000 10.000<br />
400.000<br />
P 3 - - 35.000 25.000 - 35.000 25.000<br />
Total<br />
etape<br />
104.716 492.964 1.147.320 40.000 55.000 1.800.000 40.000<br />
Adresa web a proiectului: http://www.nanostral.lx.ro (adresa este functionala)
Obiectivele proiectului<br />
♦ Obiectivul general : realizarea <strong>de</strong> pre<strong>aliaje</strong> nanocristaline si <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> <strong>cu</strong><br />
caracteristici înalte, având structură submicronică, <strong>cu</strong> constituenŃi nanometrici, prin utilizarea <strong>de</strong> meto<strong>de</strong> noi si<br />
avansate <strong>de</strong> aliere in procesele <strong>de</strong> elaborare ale <strong>aliaje</strong>lor si <strong>de</strong> prelucrări in faza lichida si solida ale acestora.<br />
♦ Obiective stiintifice:<br />
Studiul echilibrelor in sisteme <strong>de</strong> <strong>aliaje</strong> Al lichid / solid – faze intermetalice soli<strong>de</strong>.<br />
Studiul termodinamic al formarii fazelor intermetalice <strong>cu</strong> Al, Ti, B, Sr, Mn, in sisteme <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>cu</strong><br />
elemente principale <strong>de</strong> aliere Si, Mg, Cu.<br />
Mo<strong>de</strong>larea proceselor <strong>de</strong> elaborare / sinteză a pre<strong>aliaje</strong>lor nanocristaline.<br />
Studiul cineticii <strong>de</strong> dizolvare a pre<strong>aliaje</strong>lor nanocristaline in <strong>aluminiu</strong> topit.<br />
Stabilirea proprietăŃilor fizico-structurale si structurale, <strong>de</strong>finitorii ale pre<strong>aliaje</strong>lor nanocristaline si ale <strong>aliaje</strong>lor <strong>de</strong><br />
<strong>aluminiu</strong> <strong>nanostructurate</strong> realizate.<br />
Studiul proceselor electrochimice, in săruri topite, <strong>de</strong> obŃinere a pre<strong>aliaje</strong>lor AlSr.<br />
Studiul proceselor <strong>de</strong> obŃinere a pre<strong>aliaje</strong>lor si <strong>aliaje</strong>lor <strong>nanostructurate</strong> prin: macinare in atmosfera inerta;<br />
aliere mecanica, difuzie; solidificare ultrarapida a topiturilor metalice; <strong>de</strong>formare plastica severa.<br />
♦ Obiectivele tehnice şi i tehnologice:<br />
Realizarea instalaŃiei experimentale <strong>de</strong> laborator <strong>de</strong> pentru obŃinerea <strong>de</strong> pre<strong>aliaje</strong> AlSr prin proces<br />
electrochimic.<br />
Realizarea <strong>de</strong> echipamente si dispozitive experimentale <strong>de</strong> laborator pentru: procesarea pulberilor metalice<br />
nanocristaline; aliere mecanica; <strong>de</strong>formare plastica severa; presare a pulberilor pre<strong>cu</strong>rsoare <strong>de</strong> pre<strong>aliaje</strong>;<br />
procesări termice.<br />
Stabilirea <strong>de</strong> tehnologii ecologice si noi <strong>de</strong> obŃinere / sinteza a unor pre<strong>aliaje</strong> (AlSr, AlTiB).<br />
Stabilirea <strong>de</strong> tehnologii <strong>de</strong> laborator <strong>de</strong> obŃinere a pre<strong>aliaje</strong>lor nanocristaline AlTiB, AlSr, AlMn.<br />
Stabilirea <strong>de</strong> tehnologii <strong>de</strong> elaborare a <strong>aliaje</strong>lor <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> <strong>cu</strong> pre<strong>aliaje</strong> nanocristaline.<br />
Elaborarea <strong>de</strong> cereri <strong>de</strong> brevet <strong>de</strong> invenŃie pentru materialele realizate si proce<strong>de</strong>ele elaborate.
♦ Gradul <strong>de</strong> complexitate<br />
Gradul <strong>de</strong> complexitate :<br />
- Cercetari <strong>cu</strong> caracter fundamental in studiul sistemelor <strong>de</strong> elemente constitutive ale <strong>aliaje</strong>lor (diagrame <strong>de</strong><br />
echilibru complexe), <strong>de</strong>terminarea <strong>de</strong> caracteristici termodinamice ale structurilor cristaline, mo<strong>de</strong>lari<br />
matematice <strong>de</strong> procese.<br />
- Utilizarea <strong>de</strong> tehnici si aparatura performanta si meto<strong>de</strong> a<strong>de</strong>cvate <strong>de</strong> analize chimice, microscopie optica<br />
computerizata şi microscopie electronica, difractie <strong>de</strong> raze X, analiza termica diferentiala, masini si aparate <strong>de</strong><br />
incercari mecanice, aparate pentru masuratori ale unor caracteristici fizice, etc pentru <strong>de</strong>terminarea si<br />
verificarea caracteristicilor pre<strong>aliaje</strong>lor / <strong>aliaje</strong>lor care vor fi realizate .<br />
- Utilizarea <strong>de</strong> programe – software <strong>de</strong> uz general si specifice pentru prelucrarea datelor, studii si cal<strong>cu</strong>le <strong>de</strong><br />
procese.<br />
- Efectuarea <strong>de</strong> lucrări <strong>de</strong> cercetare complexe <strong>cu</strong> caracter tehnic – tehnologic pentru realizarea pre<strong>aliaje</strong>lor /<br />
<strong>aliaje</strong>lor <strong>nanostructurate</strong> si stabilirea proceselor <strong>de</strong> obtinere ale acestora.<br />
- Caracterul multidisciplinar al tematicii proiectului rezulta din multitudinea <strong>de</strong> discipline stiintifice implicate in<br />
realizarea obiectivelor acestuia : stiinta materialelor, chimie si electrochimie, mo<strong>de</strong>lare matematica, fizica<br />
suprafetelor, chimie analitica si instrumentala, metalografie si metalurgie structurala, inginerie tehnologica si<br />
proiectare <strong>de</strong> instalatii (<strong>de</strong> electroliza, pentru alte procese), etc, pre<strong>cu</strong>m si <strong>de</strong>zvoltarea <strong>de</strong> procese metalurgice,<br />
mecanice, chimice, ale metalurgiei pulberilor.<br />
♦ Gradul <strong>de</strong> noutate : <strong>aliaje</strong> <strong>nanostructurate</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>cu</strong> caracteristici chimice, fizico-mecanice si tehnologice<br />
superioare, a<strong>de</strong>cvate inlo<strong>cu</strong>irii <strong>aliaje</strong>lor clasice, in aplicaŃii specifice, care nu se produc in tara, si se afla in stadiul<br />
<strong>de</strong> cercetare si pe plan mondial. Utilizarea pre<strong>aliaje</strong>lor nanocristaline in elaborarea <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> Al.<br />
Beneficiarii rezultatelor in economie:<br />
- S.C.RANCON S.R.L Iasi , S.C.ALRO S.A.Slatina, si in general orice agent economic din industria <strong>de</strong> metale<br />
neferoase si constructoare <strong>de</strong> masini.
Stadiul <strong>de</strong> realizare al proiectului in 2010 (conform planului <strong>de</strong> realizare din AA nr.3/ 2010)<br />
Etapa I : 104.716 lei .<br />
Dot CS CI CM Dep CSP<br />
Termen: 28.02.2009<br />
Partener Buget CofinanŃare<br />
CO 54.716 -<br />
P1 20.000 -<br />
P2 30.000 -<br />
P3 0 -<br />
Activitati efectuate:<br />
1.1 - Elaborare mo<strong>de</strong>l conceptual <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong>. Studiu privind meto<strong>de</strong> <strong>de</strong> obtinereprocesare<br />
a materialelor metalice micro si nanocristaline.<br />
- Studiu termodinamic si mo<strong>de</strong>lare în sisteme <strong>de</strong> <strong>aliaje</strong> Al – faze intermetalice.<br />
- Studiu privind meto<strong>de</strong> <strong>de</strong> obtinere-procesare prin metalurgia pulberilor si solidificare ultrarapida.<br />
- Studiu privind meto<strong>de</strong> <strong>de</strong> obtinere-procesare prin <strong>de</strong>formare plastica severa.<br />
- Mo<strong>de</strong>l conceptual <strong>de</strong> pre<strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong>.<br />
- Baze tehnico-ştiinŃifică privind materialele metalice <strong>nanostructurate</strong>.<br />
- Date termodinamice şi mo<strong>de</strong>lul echilibrelor Al-faze intermetalice.<br />
- Baze ştiinŃifice şi tehnologice ale obŃinerii - procesării <strong>de</strong> pre<strong>aliaje</strong> nanocristaline prin metalurgia pulberilor şi<br />
solidificare ultrarapidă.<br />
- Baze date ştiinŃifice şi tehnice ale obŃinerii - procesării <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> prin <strong>de</strong>formare<br />
plastica severă.<br />
1.2 - Realizare retea informationala. Pagina WEB proiect.<br />
AchiziŃii ii realizate:<br />
Nisa eva<strong>cu</strong>are noxe pentru Laborator <strong>de</strong> obtinere si caracterizare a nanomaterialelor, <strong>cu</strong> 2 motoare <strong>de</strong> vetilatie,<br />
alimentare <strong>cu</strong> gaz, apa si energie electrica, si chiuveta incorporata.<br />
Mese <strong>de</strong> laborator termorezistente la temperatura si agenti chimici.<br />
38,3%<br />
36,2%<br />
8,6%<br />
1,2% 1,4%<br />
14,3%
Stadiul <strong>de</strong> realizare al proiectului in 2010 (conform planului <strong>de</strong> realizare din AA nr.3/ 2010)<br />
Etapa II : 64.085 lei (credit <strong>de</strong> angajament)<br />
Termen: 30.11.2009<br />
Dot CS CI CM Dep CSP<br />
Partener<br />
Buget-credit <strong>de</strong><br />
angajament<br />
CofinanŃare<br />
CO 24.400 -<br />
P1 25.785 -<br />
P2 13.900 -<br />
P3 - -<br />
47,8%<br />
22,2%<br />
21,4%<br />
2,8% 1,9% 4,0%<br />
Activitati efectuate:<br />
2.1. Elaborare tehnologie preliminara <strong>de</strong> obtinere a pre<strong>aliaje</strong>lor <strong>de</strong> <strong>aluminiu</strong> nano-structurate prin aliere<br />
mecanica.<br />
2.2. Elaborare metodologie <strong>de</strong> caracterizare fizico-structurala a <strong>aliaje</strong>lor <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong>.<br />
2.3. Elaborare tehnologii preliminare <strong>de</strong> laborator <strong>de</strong> obŃinere pre<strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> nanocristaline prin meto<strong>de</strong><br />
ale metalurgiei pulberilor şi prin solidificare ultrarapida.<br />
2.4. Elaborare specificaŃii tehnice cadru pentru pre<strong>aliaje</strong> nanocristaline <strong>de</strong> tipurile AlTiB, AlSr şi AlMn, si <strong>aliaje</strong><br />
<strong>nanostructurate</strong> AlMgMn şi AlSiMg.<br />
2.5. Elaborare tehnologie preliminara <strong>de</strong> laborator <strong>de</strong> obtinere a <strong>aliaje</strong>lor <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> prin<br />
<strong>de</strong>formare plastica severa.<br />
AchiziŃii ii realizate:<br />
- Pulberi metalice din Al si Mn;<br />
- Bile din oxid <strong>de</strong> zirconiu;
Stadiul <strong>de</strong> realizare al proiectului in 2010 (conform planului <strong>de</strong> realizare din A nr.3/ 2010)<br />
Etapa III : 380.967 lei (credit <strong>de</strong> angajament)<br />
Termen: 10.12.2010<br />
Partener<br />
Buget-credit <strong>de</strong><br />
angajament<br />
CofinanŃare<br />
CO 127.500 -<br />
P1 167.467 -<br />
Dot CS CI CM Dep CSP<br />
65,4%<br />
31,2%<br />
P2 86.000 -<br />
P3 0 -<br />
0,0%<br />
0,2% 1,0%<br />
2,2%<br />
Activitati efectuate:<br />
3.1 Experimentari <strong>de</strong> laborator pentru obtinerea <strong>de</strong> pre<strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> micro si nanocristaline.<br />
3.1.1. Experimentari <strong>de</strong> elaborare prealiaj microcristalin AlTiB si <strong>de</strong> sinteza prin aliere mecanica a<br />
pulberilor <strong>de</strong> prealiaj AlMn.<br />
3.1.2. Experimentari <strong>de</strong> sinteza electrochimica a prealiajului AlSr. Experimentari <strong>de</strong> procesare<br />
prin solidificare ultrarapida a pre<strong>aliaje</strong>lor AlTiB si AlSr si prin meto<strong>de</strong> ale metalurgiei pulberilor a pre<strong>aliaje</strong>lor<br />
nanocristaline. Experimentari <strong>de</strong> consolidare - presare a pulberilor <strong>de</strong> pre<strong>aliaje</strong> nanocristaline.<br />
3.1.3. Experimentari <strong>de</strong> procesare prin <strong>de</strong>formare plastica severa a pre<strong>aliaje</strong>lor<br />
<strong>de</strong> <strong>aluminiu</strong> AlTiB si AlSr <strong>nanostructurate</strong>.<br />
3.2. Caracterizarea chimica si fizico-structurala a probelor <strong>de</strong> pre<strong>aliaje</strong> nanocristaline. Caracterizarea<br />
fizicostructurala prin microscopie electronica si <strong>de</strong>terminari <strong>de</strong> caracteristici termo-fizice ale probelor<br />
<strong>de</strong> pre<strong>aliaje</strong> nanocristaline.<br />
3.3. Diseminarea rezultatelor. Participarea la manifestari tehnico-stiintifice. Stabilirea drepturilor <strong>de</strong><br />
proprietate intelectuala asupra rezultatelor.<br />
AchiziŃii ii realizate: 0
Modul <strong>de</strong> implicare al tinerilor cercetatori<br />
Parteneri<br />
CO<br />
P1<br />
Nume si prenume Vârsta Modul <strong>de</strong> implicare<br />
Apostoles<strong>cu</strong> Ioana<br />
Bejan Simona<br />
Bololoi Robert Viorel<br />
Manea Mihai<br />
Iacob Gheorghe<br />
Usurelu Adina<br />
Barloaga Ionela<br />
Ionut Constantin<br />
Onisei Lucian<br />
33<br />
27<br />
34<br />
26<br />
26<br />
27<br />
25<br />
25<br />
32<br />
Lucrari experimentale aliere mecanica.<br />
Do<strong>cu</strong>mentare si traducere in domeniul pulberilor<br />
metalice.<br />
Operare si programare baze <strong>de</strong> date.<br />
Doctorand in domeniul <strong>aliaje</strong>lor neferoase.<br />
Doctorand in domeniul materialelor speciale.<br />
Lucrari experimentale aliere mecanica .<br />
Doctorand in domeniul <strong>aliaje</strong>lor <strong>nanostructurate</strong>.<br />
Doctorand in domeniul stiinta materialelor.<br />
Masterand in domeniul stiintei materialelor.<br />
Doctorand in domeniul stiintei materialelor.<br />
P2<br />
Cimpoesu Nicador<br />
Carabet Roxana Gabriela<br />
28<br />
31<br />
Doctorand caracterizarea materialelor. Aliaje<br />
neferoase.<br />
Doctorand caracterizarea materialelor si tratamente<br />
termice.<br />
P3<br />
Ciorabatca An<strong>cu</strong>ta Elena<br />
Harhata Lucian<br />
Popa Silviu<br />
34<br />
31<br />
27<br />
Responsabil <strong>de</strong> proiect, activitati financiarcontabile.<br />
Elaborare <strong>aliaje</strong> neferoase; marketing.<br />
Proiectare si management instalatii experimentale
Indicatori <strong>de</strong> rezultat realizati in cadrul proiectului<br />
Studii: 3<br />
- Elaborare mo<strong>de</strong>l conceptual si fundamentarea tehnico-stiintifica a realizarii <strong>de</strong> <strong>aliaje</strong> <strong>de</strong><br />
<strong>aluminiu</strong> <strong>nanostructurate</strong><br />
- Elaborare mo<strong>de</strong>le experimentale <strong>de</strong> pre<strong>aliaje</strong> si <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> si<br />
tehnologii <strong>de</strong> obŃinere. Experimentări <strong>de</strong> laborator pentru obŃinerea <strong>de</strong> pre<strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong><br />
nanocristaline. Caracterizarea probelor <strong>de</strong> pre<strong>aliaje</strong> nanocristaline.<br />
- Experimentari <strong>de</strong> laborator privind obtinerea <strong>de</strong> pre<strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> micro si nanocristaline.<br />
Stabilirea drepturilor <strong>de</strong> proprietate intelectuala asupra rezultatelor.<br />
Mo<strong>de</strong>le experimentale e si tehnologii preliminare <strong>de</strong> laborator: 4<br />
- Mo<strong>de</strong>l experimental - tehnologie preliminara <strong>de</strong> laborator <strong>de</strong> obtinere a pre<strong>aliaje</strong>lor <strong>de</strong><br />
<strong>aluminiu</strong> <strong>nanostructurate</strong> prin aliere mecanica - AlMn.<br />
- Mo<strong>de</strong>l experimental - tehnologie preliminara <strong>de</strong> laborator <strong>de</strong> obtinere a pre<strong>aliaje</strong>lor <strong>de</strong><br />
<strong>aluminiu</strong> nanocristaline prin metalurgia pulberilor si prin solidificare ultrarapida.<br />
- Mo<strong>de</strong>l experimental - tehnologie preliminara <strong>de</strong> laborator <strong>de</strong> obtinere a pre<strong>aliaje</strong>lor <strong>de</strong><br />
<strong>aluminiu</strong> nanocristaline prin <strong>de</strong>formare plastica severa.<br />
- Caracterizarea chimica , fizico-mecanica si fizico-structurala prin microscopie electronica a<br />
pre<strong>aliaje</strong>lor nanocristaline.<br />
Specificatii tehnice: 4<br />
- SpecificaŃie tehnică cadru pentru prealiajul <strong>de</strong> tip AlTiB, AlSr, AlSiMg, AlMgMn.<br />
Obiecte fizice: 20 analize chimice, 10 dimensiuni <strong>de</strong> parti<strong>cu</strong>le, 35 difractie <strong>de</strong> raze X, 50 analize<br />
microscopice, 20 EDAX-uri.<br />
Diseminare: 3 articole publicate<br />
2 prezentari poster<br />
6 articole trimise spre publicare
Articole publicate:<br />
1. G.Popes<strong>cu</strong>, I.Vladutiu, V.Soare, I.Surcel, D.Mitrica, I.Carcea, Nanostructured Aluminium Alloys with<br />
High Physical and Mechanical Properties, Metalurgia International, ISSN 1582-2214, vol. 2, 2009,<br />
p.35-38.<br />
2. Marian Burada, Vasile Soare, Ioan Surcel, Mircea Radu, Dumitru Mitrica,Ionela Barloaga , Synthesis<br />
of the Microstructured Aluminium- Magnesium Alloys by Mechanical Alloying - International Workshop<br />
FUNCTIONAL NANOMATERIALS Fun Nanos IV 02.07.2009, INCDMNR-IMNR, ISSN 2066 – 8023,<br />
Editura AVANMAT, 2009<br />
3. Comaneci, R., Comanici, A., Damaging of Al-Mg Alloys Severly Plastic Deformed by Equal Channel<br />
Angular Pressing, Annals of DAAAM for 2010 & Proceedings of the 21st International DAAAM<br />
Symposium, Editor B. Katalinic, Published by DAAAM International, Vienna, Austria 2010, pag.246-<br />
247.<br />
Postere:<br />
1. Gabriela Popes<strong>cu</strong>, Vasile Soare, Dumitru Mitrica ,, Liana Maria Vladutiu, Cristian Aurelian Popes<strong>cu</strong> ,<br />
Development of Nanostructured Aluminum Alloys with High Physical-Mechanical Characteristics,<br />
EMCC6, Antalya, Turkey, March 7-12 th , 2010.<br />
2. Gabriela Popes<strong>cu</strong>, Liana Maria Vladutiu, V.Soare, D. Mitrica ,, Development of Nanostructured<br />
Aluminum Alloys , BiomMed 2010, Sinaia, Romania, 23-25 septembrie.<br />
Articole trimise spre publicare:<br />
1. Crystal size <strong>de</strong>termination of Al-Mn master alloy, Metalurgia International.<br />
2. Nanostructured Al-Mn Master Alloys Obtained by Mechanical Alloying, Metalurgia International.<br />
3. Experimental mo<strong>de</strong>ls for processing of nanostructured aluminum master alloys, BRAMAT 2011,<br />
Brasov, Romania, 24-26 februarie 2011.<br />
4. Melt Spinning Process for Nanostructured AlSr Master Alloy Obtaining, Metallurgical and New<br />
Materials Researches .<br />
5. Comaneci, R., Zaharia, L., Chelariu, R., Damaging Prediction of Diffi<strong>cu</strong>lt-to-Work Aluminum Alloys<br />
During Equal Channel Angular, Journal of Materials Engineering and Performance .<br />
6. Studii privind obtinerea <strong>de</strong> pre<strong>aliaje</strong> AlTiB <strong>cu</strong> structura micro si nanocristalina prin racire<br />
ultrarapida, Metalurgia International.
Activitatile prevazute a se realiza in anul 2011<br />
Etapa IV, termen <strong>de</strong> finalizare al proiectului 30.09.2011<br />
Activitati <strong>de</strong> efectuat:<br />
- Experimentari <strong>de</strong> elaborare si <strong>de</strong> prelucrare <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> <strong>cu</strong> pre<strong>aliaje</strong><br />
nanocristaline.<br />
- Caracterizare chimica si fizico-structurala <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong>.<br />
- Definitivare tehnologii laborator <strong>de</strong> obtinere pre<strong>aliaje</strong> si <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong>.<br />
- Demonstrare utilitate – pre<strong>aliaje</strong> si <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong>.<br />
- Elaborare do<strong>cu</strong>mentatii tehnice produse si tehnologii noi.<br />
- Elaborare manual <strong>de</strong> prezentare tehnologii - produse.<br />
- Valorificarea rezultatelor obtinute si stabilirea drepturilor <strong>de</strong> proprietate intelectuala.<br />
- Intocmire cerere brevet.<br />
- Diseminarea rezultatelor prin participarea la congrese tehnico-stiintifice nationale si internationale,<br />
publicare <strong>de</strong> articole in reviste <strong>de</strong> specialitate.<br />
Achizitii prevazute initial <strong>de</strong> efectuat, in proiect:<br />
Achizitii prevazute initial <strong>de</strong> efectuat, in proiect:<br />
- DSC/DTA <strong>de</strong> temperatură înaltă, Interval <strong>de</strong> lucru între temperatura 20 0 C -1600 0 C.<br />
- Porozimetru pentru <strong>de</strong>terminare nanoporilor, Sistem complex Pascal 140-440.<br />
- Agitator electronic , Volum 10 l, motor 75W, turatie reglabila 50-2000 rot/min, inregistrare turatie pe display.<br />
- ph-metru digital controlat <strong>de</strong> microprocesor, Temperatura 5-150 0 C, ph= -2 -19,99pH.<br />
- Attritor, Atmosfera inerta/vid, temp. <strong>de</strong> lucru : -50C-300C, capacitate utila : 1.000 cmc.<br />
- Cuptor electric tratamente termice, Atmosfera inerta, vid. Temperatura 1.500 C.<br />
- Granulometru laser, Determinare dimensiuni nanometrice.<br />
- Generator inalta frecventa, Putere 35 KW, frecventa 300 KHZ.<br />
- Soft-uri profesionale, Determinari structurale, mo<strong>de</strong>lari procese.<br />
- Analizor gaze oxigen, hydrogen. Azot, domenii analiza ppm-procente.<br />
- Masină <strong>de</strong> <strong>de</strong>bitat probe metalice <strong>cu</strong> sistem <strong>de</strong> prin<strong>de</strong>re motor compact 4CP,sistem electronic <strong>de</strong> frinare,<br />
capacitate <strong>de</strong> taiere <strong>de</strong> pina la 90 mm,dis<strong>cu</strong>ri <strong>de</strong> taiere <strong>de</strong> pina la 250 mm diametru.<br />
- Masină <strong>de</strong> inglobat probe metalografice <strong>cu</strong> incarcare automata capacitate 5 tone,citire directa a traductorului <strong>de</strong><br />
presiune (forta),temporizator automat, afisaj digital al timpului si temperaturii, etc.
Buget/cofinantare conform AA nr.3/2010<br />
Partici<br />
pant<br />
2008 2009 2010 2011 TOTAL<br />
B C B Credit Total B C B C B C<br />
CO 0 54.716 24.400 79.116 127.500 - 408.384 0<br />
P 1 0 20.000 25.785 45.785 167.467 - 536.748 15.000<br />
615.000<br />
750.000 15.000<br />
P 2 0 30.000 13.900 43.900 86.000 - 270.100 0<br />
400.000<br />
P 3 - - - 0 0 - 35.000 25.000 60.000 25.000<br />
Total<br />
etape<br />
0 104.716 64.085 168.085 380.967 - 1.250.232 40.000 1.800.000 40.000<br />
Buget/cofinantare la contractare in 2008<br />
Partici<br />
-<br />
pant<br />
CO<br />
2008 2009 2010 2011 TOTAL<br />
B C B C B C B C B C<br />
54.716<br />
172.964 367.320 20.000 615.000<br />
P 1 20.000 220.000 485.000 15.000 25.000<br />
Valoare totala proiect incasata pina in 2010: 168.805 lei ( 9,37%)<br />
Valoare totala proiect <strong>cu</strong> credit <strong>de</strong> angajament in 2010 : 549.768 lei (30,54%)<br />
Valoare ramasa <strong>de</strong> incasat conform contractului: 1.250.232 lei (69,46%)<br />
750.000 15.000<br />
P 2 30.000 100.000 260.000 10.000<br />
400.000<br />
P 3 - - 35.000 25.000 - 35.000 25.000<br />
Total<br />
etape<br />
104.716 492.964 1.147.320 40.000 55.000 1.800.000 40.000
Experimentari <strong>de</strong> elaborare prealiaj microcristalin AlTiB<br />
AlB1 AlTi3 AlTi5B1<br />
parti<strong>cu</strong>lele <strong>de</strong> AlB 2<br />
sub<br />
formă <strong>de</strong> plăci<br />
parti<strong>cu</strong>lele <strong>de</strong> TiAl 3<br />
sub formă <strong>de</strong> parti<strong>cu</strong>le<br />
echiaxe rotunjite<br />
parti<strong>cu</strong>lele <strong>de</strong> TiAl 3<br />
formate în jurul<br />
parti<strong>cu</strong>lelor <strong>de</strong> Ti
Experimentari <strong>de</strong> sinteza prin aliere mecanica a<br />
pulberilor <strong>de</strong> prealiaj AlMn<br />
Cps<br />
Pulbere Mn-Al cod 5.1.<br />
200<br />
180<br />
160<br />
140<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
5 ore<br />
L=11 nm<br />
20 30 40 50 60 70 80 90 100<br />
2 Theta<br />
65 ... 150 nm<br />
Proba 6.1.<br />
500<br />
450<br />
400<br />
8 ore<br />
350<br />
L=9 nm<br />
300<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
20 30 40 50 60 70 80 90<br />
45 ... 90 nm<br />
20 ore<br />
amorf<br />
19….35 nm
Experimentari <strong>de</strong> sinteza electrochimica<br />
a prealiajului AlSr<br />
Nr.<br />
t, ore<br />
Parametrii procesului<br />
I ,A<br />
E, V<br />
D A-K<br />
,<br />
cm<br />
CompoziŃie<br />
prealiaj<br />
%Sr<br />
Randament<br />
<strong>de</strong><br />
<strong>cu</strong>rent<br />
1<br />
0,21<br />
5,00<br />
5,00<br />
1,5<br />
0,85<br />
0,75<br />
2<br />
0,28<br />
5,00<br />
5,00<br />
1,5<br />
1,15<br />
0,74<br />
3<br />
0,91<br />
5,00<br />
5,00<br />
1,5<br />
3,70<br />
0,75<br />
4<br />
1,35<br />
5,00<br />
5,00<br />
1,5<br />
5,50<br />
0,76<br />
5<br />
2,45<br />
5,00<br />
5,00<br />
1,5<br />
10,00<br />
0,75<br />
6<br />
2,55<br />
5,00<br />
5,00<br />
1,5<br />
10,40<br />
0,75<br />
7<br />
2,45<br />
4,00<br />
5,00<br />
1,5<br />
6,62<br />
0,63<br />
8<br />
2,45<br />
6,00<br />
5,00<br />
1,5<br />
10,89<br />
0,68<br />
Al (99,9%); SrCO 3<br />
(99,9%).<br />
Electrolit : AlF 3<br />
, NaF,<br />
BaF, CaF 2<br />
.<br />
Parametrii procesului :<br />
• timpul <strong>de</strong> electroliză (t,ore),<br />
• intensitatea (I, A),<br />
• tensiunea celulei (E,V) ,<br />
• distanŃa anod-catod (DA-K).
Experimentari <strong>de</strong> procesare prin solidificare ultrarapida<br />
a pre<strong>aliaje</strong>lor AlTiB si AlSr<br />
Prealiaj<br />
Nr<br />
d d-t<br />
mm<br />
T E<br />
°C<br />
Parametrii *<br />
D d<br />
mm<br />
P g<br />
bari<br />
N tamb<br />
rpm<br />
Grosimea<br />
benzii,<br />
µm<br />
AlTi5B1<br />
1<br />
2<br />
1<br />
1<br />
1200<br />
1200<br />
0,7<br />
0,7<br />
1,2<br />
1,2<br />
2500<br />
5500<br />
85µm<br />
55 µm<br />
AlSr10<br />
1<br />
2<br />
1<br />
1<br />
1000<br />
1000<br />
1<br />
1<br />
1,8<br />
1,8<br />
2000<br />
4400<br />
85 µm<br />
45 µm<br />
* distanŃa duză-tambur (d d-t ), temperatura <strong>de</strong> ejecŃie a materialului<br />
(T E ), diametrul diuzei (D d ), presiunea gazului în tubul <strong>de</strong> quarŃ (P g ),<br />
rotaŃia tamburului (N tamb ).<br />
Nr.<br />
probei<br />
ForŃa <strong>de</strong> presare,<br />
[tf]<br />
ÎnălŃimea,<br />
[mm]<br />
Densitatea aparentă,<br />
[g/cm 3 ]<br />
1<br />
6,00<br />
3,1<br />
1,963<br />
2<br />
5,00<br />
3,4<br />
1,79<br />
3<br />
4,00<br />
3,8<br />
1,6<br />
Benzi amorfizate si pastile<br />
presate <strong>de</strong> prealiaj<br />
4<br />
2,00<br />
4,3<br />
1,4
Experimentari <strong>de</strong> procesare prin <strong>de</strong>formare plastica<br />
severa a pre<strong>aliaje</strong>lor <strong>de</strong> <strong>aluminiu</strong> AlTiB si AlSr<br />
Parametrii <strong>de</strong> <strong>de</strong>formare plastică sunt:<br />
• Unghiul canalului <strong>de</strong> <strong>de</strong>formare;<br />
• Forma canalului;<br />
• Lungimea totală a canalului <strong>de</strong><br />
<strong>de</strong>formare;<br />
• Unghiul <strong>de</strong> racordare exterioară a<br />
canalelor <strong>de</strong> <strong>de</strong>formare;<br />
• Raza <strong>de</strong> racordare exterioară a<br />
canalelor <strong>de</strong> <strong>de</strong>formare.<br />
INCERCARI DE DEFORMARE<br />
Laminare<br />
succesivă<br />
ECAP<br />
Compresiune<br />
Prin <strong>de</strong>formarea plastică severă dimensiunile şi forma compusului Al 3 Ti se modifică, obŃinundu-se un<br />
constituient metalografic <strong>cu</strong> dimensiuni medii mai mici şi o distribuŃie mai uniformă în matricea<br />
prealiajului.