ICMCTF 2012! - CD-Lab Application Oriented Coating Development

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determined by using a criterion which is defined by the bifurcation point between strains obtained by XRD and those obtained by DIC technique. 9:40am E2-3-6 Heat treating effects on the microstructure and mechanical properties of Ti-Cr-B-N thin films, L.W. Ho, J.W. Lee (jefflee@mail.mcut.edu.tw), Ming Chi University of Technology, Taiwan, H.W. Chen, J.G. Duh, National Tsing Hua University, Taiwan The Ti-Cr-B-N thin films with various boron contents were deposited by pulsed DC magnetron sputtering on silicon substrates and SUS420 stainless steel discs. Heat treatments were carried out in a vacuum furnace at 600, 800 and 1000°C for 1 hour, respectively. The crystalline structures and BN bonding nature of thin films before and after heat treating were characterized by grazing angle X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR), respectively. The surface and cross sectional morphologies of heat treated thin films were examined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). A nanoindenter and nanoscratch tester were adopted to evaluate the mechanical properties of coatings before and after heat treating. It was found that a hardening effect occurred after heat treating. Evolution of microstructures and mechanical properties after heat treatment at different temperature was investigated. The possible hardening mechanism of Ti-Cr- B-N coatings was also proposed. 10:00am E2-3-7 Innovative nanomechanical testing for coating optimisation in severe applications - experiments and modelling, B. Beake (ben@micromaterials.co.uk), Micro Materials Ltd, UK, N. Schwarzer, SIO, Germany, M. Davies, Micro Materials Ltd, UK, W. Helle, LOT Oriel, T. Liskiewicz, Leeds University, UK Optimising coating performance for applications such as (1) ultra-high speed machining of hard-to-cut materials (2) the severe conditions that occur in automotive engines, artificial joints or helicopter gears when solidsolid contact occurs requires the combination of advanced new experimental nanomechanical test techniques with improved analytical methods for interpreting the data produced. This presentation will include three case studies:- 1) Improvements to the Oliver and Pharr approach to take account of time dependency in nanoindentation, as applied to nanoindentation at 750C 2) The importance of high temperature nanoindentation of DLC in accurate modelling of sliding contact 3) High-speed reciprocating nano-wear of DLC and metallic samples In addition it will be demonstrated how the such extracted generic material parameters can be used for computer aided optimizing of coating systems. 10:20am E2-3-8 A new method to measure mechanical properties of very thin top layers (
property combination is attractive for protective coatings on cutting tools. Mo2BC thin films were synthesized using DC magnetron sputtering. Nanoindentation experiments determined a high Young’s modulus of 470 GPa. Topographical imaging of the residual indent did not reveal any crack formation but pile-up was measured confirming the combination of high stiffness and moderate ductility of Mo2BC predicted by ab initio calculations. MXB14 (M, X = usually metals) is a class of materials with the crystallographic structure based on a framework of B-icosahedra and bestows these phases with excellent mechanical and wear properties. However, a serious challenge is to synthesize crystalline MXB14 coatings. A quantum-mechanical description of XMgB14 (X = Al, Ge, Si, C, Mg, Sc, Ti, V, Zr, Nb, Ta, Hf) [2] and a detailed charge analysis based on Bader decomposition revealed that these phases are stabilized by the transfer of electrons from the X-element to the B-icosahedron, reflected by the effective charge of B-icosahedron. Not only the element but also the configurations of the phases, investigated for AlxYyB14 (x, y = 0.25, 0.5, 0.75, 1), influences the phase stability through the effective charge of the Bicosahedron [3]. Generally, the maximum phase stability was identified by approximately two electrons transferred and seems to be connected to electronegativity and ionization potential. 1. J. Emmerlich et al., J. Phys. D-Appl. Phys. 42 (2009) (18), p. 6. 2. H. Kolpin et al., Phys. Rev. B 78 (2008) (5), p. 6. 3. H. Kolpin et al., J. Phys.-Condes. Matter 21 (2009) (35), p. 6. 8:40am F3-1-3 Hard and lubrious Ti-B-C-N nanocomposite coatings via magnetron sputtering, F.J. Li, S. Zhang (msyzhang@ntu.edu.sg), School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, B. Li, Central Iron and Steel Research Institute, China Lubricant-free machining has become the goal of hard coatings for modern wear-resistant applications. Demonstrated are hard and low friction Ti-B-C- N nanocomposite coatings via co-sputtering of TiB2 and C in an Ar/N2 atmosphere. The surface morphology, microstructure, chemical composition and mechanical properties of the coatings are examined with increasing B content. The results show that up to five phases, TiB, TiB2, TiN, TiC and BN exist in the coatings. The coating hardness varies from 10.78 GPa to 31.78 GPa as the power density on the TiB2 target increases from 1.2 W/cm 2 to 3.6 W/cm 2 . The incorporation of C gives rise to very low friction coefficient while sliding against steel ball. The hardening mechanism of B and the lubricating mechanism of C are also discussed. 9:00am F3-1-4 Microstructural of study of cubic borno nitride thin film deposited by UBM method with hydrogen addition, J.-S. Ko, J.K. Park, Korea Institute of Science and Technology, Republic of Korea, J.-Y. Huh, Unaffiliated, Y.J. Baik (yjbaik@kist.re.kr), Korea Institute of Science and Technology, Republic of Korea Characteristics of microstructure of cubic boron nitride film, deposited with hydrogen containing Ar-nitrogen mixed gas were investigated. The films were deposited by UBM (unbalanced magnetron sputtering) method. A boron nitride target of 3” diameter was used as a sputtering source, which was connected with 13.56 MHz RF (radio-frequency) electric power supply. The substrate holder was placed at 7.5 cm under the target and 200 KHz electric power supply was used as a substrate bias power supply. Either Si or Si wafer with nanocrystalline diamond thin film on it was used as a substrate. The chamber was evacuated down to 10 -6 torr and a mixed gas of Ar-10% nitrogen was flowed into the chamber during deposition. The hydrogen was added to the mixed gas up to 5 sccm while maintaining the total gas flow rate at 20 sccm. The deposition pressure was maintained at 2 or 4 mtorr. The electric power of the target was 500 W and the substrate self bias voltage was -60 V. FTIR, SEM, as well as TEM were used to analyze the phase and microstructure. TEM observation has shown three layered structure of a-BN, t-BN and cBN on Si substrate, which was little affected with the addition of hydrogen. The high resolution TEM structure of t-BN, however, was shown to vary with the addition of hydrogen. The alignment of t-BN laminate was broken for samples with hydrogen, which is believed to correlate the residual stress formation. The microstructure variation of the cBN layer itself was also shown to be affected by the presence of the hydrogen in the reaction gas. The possibility of the codeposition of hBN and cBN phase was shown in the microstructure of the existence of the hBN phase within the cBN layer. The role of hydrogen in the formation of such a microstructure as well as the relation with the variation with the FTIR spectra was also discussed. This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea. 9:20am F3-1-5 Effect of deposition temperature of cubic boron nitride thin film deposited by UBM method with nanocrystalline diamond buffer layer, E.S. Lee, J.K. Park, Korea Institute of Science and Technology, Republic of Korea, T.Y. Seong, Unaffiliated, Y.J. Baik (yjbaik@kist.re.kr), Korea Institute of Science and Technology, Republic of Korea Diamond has the nearest lattice parameter to cubic boron nitride and been considered as an adequate substrate to deposit cubic boron nitride thin film without any t-BN like intrinsic buffer layer. In this study, the behavior of the intrinsic t-BN like buffer layer was investigated when the cBN films were deposited on nanocrystalline diamond (NCD) film at various temperatures. The films were deposited by UBM (unbalanced magnetron sputtering) method. A boron nitride target of 3” diameter was used as a sputtering source, which was connected with 13.56 MHz RF (radiofrequency) electric power supply. The substrate holder was placed at 7.5 cm under the target and 200 KHz electric power supply was used as a substrate bias power supply. Either Si or Si wafer with nanocrystalline diamond thin film on it was used as a substrate. The chamber was evacuated down to 10 - 6 Torr and a mixed gas of Ar-10% nitrogen was flowed at 20 sccm into the chamber during deposition. The deposition pressure was maintained at 2 or 4 mTorr. The electric power of the target was 500 W and the substrate selfbias voltage was -60 V. The deposition temperature was varied in the range between room temperature and 1000�. FTIR, SEM and TEM RBS were used to analyze the phase and structure. With increasing the deposition temperature, the hBN intensity of the FTIR spectrum decreased. No visible hBN peak was observed for the films deposited around 800� under the above deposition condition. The high resolution TEM microscopy has shown very thin discontinuous hBN layers between the NCD and the cBN layer and epitaxial growth of the cBN on the NCD was also found. The films deposited at room temperature, however, showed typical three layered structure of a-BN, t-BN and cBN. It is thus believed that the hBN peak of the FTIR spectra was originated from the interfacial layer. Other behaviors such as stress variation was also discussed. This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea 9:40am F3-1-6 Microwave-assisted surface synthesis of amorphous and crystalline boron-carbon-nitrogen foams for thermal physisorption applications, R. Paul, Birck Nanotechnology Center, Purdue University, US, A. Voevodin, Birck Nanotechnology Center, Purdue University; Materials and Manufacturing Directorate, Air Force Research Laboratory, US, A. Amama, S. Ganguli, A.K. Roy, Air Force Research Laboratory, Materials and Manufacturing Directorate, US, T.S. Fisher (tsfisher@purdue.edu), Birck nanotechnology Center,Purdue University; Air Force Research Laboratory, Materials and Manufacturing Directorate, US, J.J. Hu, University of Dayton Research Institute/Air Force Research Laboratory, US A microwave assisted thermo-chemical surface treatment of highly porous carbon foams was developed to synthesize boron-carbon-nitrogen foams for thermal energy storage and release using adsorption/desorption cycle with lightweight hydrocarbons. Carbon foams provide a combined advantage of large surface area and high thermal conductivity critical for thermal energy storage, but they are prone to oxidation and have a low adsorption enthalpy for lightweight hydrocarbons. This report describes carbon foam surface modification to synthesize oxidation resistant and high thermal sorage capacity B-C-N foams. Boron and nitrogen were incorporated in graphitic carbon foam through microwave-assisted thermo-chemical synthesis using boric acid and urea as boron and nitrogen sources respectively. A 400 W microwave treatment for 5-30 minutes was used to accelerate foam surface modification, which was followed by high temperature annealing in an inert atmosphere to complete carbon foam surface conversion to B-C-N and to remove excess oxygen content. The resultant B-C-N foams were characterized by XPS, XRD, FESEM and Raman measurements to quantify their stoichiometry, structure, and morphology. The results reveal the formation of hexagonal B-C-N on the surface of graphitic carbon foams, where B-N and C-N bonding arrangements were dominant and indicate a direct substitution of carbon atoms in graphite lattice with boron and nitrogen atoms. The boron and nitrogen content can be increased with the higher annealing temperature and saturate at approximately BC4N stoichiometry at 1100 0 C. Foam thermal conductivity was measured by transient plane source and laser flash techniques. Methanol adsorption experiments on the B-C-N foam surface were done by a BET method. The adsorption-desorption enthalpy of methanol molecules on the B-C-N foam surface was measured by differential scanning calorimetry (DSC). The adsorption enthalpy was found to increase with a decrease of the residual oxygen content within the B-C-N foam. An enhancement of adsorption enthalpy was found for B-C-N foam in comparison to pure carbon foam, confirming the B-C-N foam benefits for adsorption cooling applications and 133 Friday Morning, April 27, 2012
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I C M C T F 2 0 1 2 INTERNATIONAL C
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TABLE OF CONTENTS Welcoming Remarks
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2012 ICMCTF SCHEDULE OF EVENTS DAY
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SYMPOSIUM A Coatings for Use at Hig
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Marco Cremona Pontificia Universida
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Exhibitor Keynote Lecture Tuesday,
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2011/12, discuss ideas and prioriti
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At the focus topic, from the experi
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2012 R.F. Bunshah Annual Award & IC
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ICMCTF 2012 Graduate Student Awards
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ICMCTF 2012 thanks Plansee for thei
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ICMCTF 2012 thanks AJA Internationa
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ICMCTF 2012 thanks CemeCon for thei
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ICMCTF 2012 Short Courses April 22
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ICMCTF 2012 Planning Grid We provid
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Key to Session/Paper Numbers A Coat
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Monday Morning, April 23, 2012 Fund
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New Horizons in Coatings and Thin F
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Fundamentals and Technology of Mult
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Advanced Characterization of Coatin
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Hard Coatings and Vapor Deposition
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Tribology & Mechanical Behavior of
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Coatings for Use at High Temperatur
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Applications, Manufacturing, and Eq
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Wednesday Afternoon, April 25, 2012
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Thursday Afternoon Poster Sessions
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Free Caricatures & Massages!! E-1 V
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ICMCTF 2012 EXHIBIT HALL Internatio
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I C M C T F 2012 S P O N S O R S Bo
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All in Good Measure A 24 µm scan o
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Call For Abstracts Deadline: MAY 2,
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CC800 ® /9 HIPIMS true integration
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Exhibit Hall Reception - Atlas Ball
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Kaufman & Robinson announces their
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Miba Coating Group is the specialis
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PLANSEE SE, 6600 Reutte, Austria, T
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� ��
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Plenary Talk Room: Golden Ballroom
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content. Analyses of the oxidised c
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- The control on the gradient in re
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μ = 0.4 to μ = 0.9). On the other
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application tests the ta-C coated d
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4:10pm C2-2/F4-2-10 Investigation o
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process with surfactant on WO3/ITO
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is already reported. To further com
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conditions. The details of the comp
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esidual stress and to the Poisson
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eactive gases with the target mater
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emerging fields. State-of-the-art t
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transparent conducting layers. Howe
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methods provide similar carrier den
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of AISI 52100 steels by developing
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deposition based on high power puls
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coatings removed from the aluminum
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spectroscopy varies from 25 at% to
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This article describes how to use s
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een demonstrated both theoretically
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Furthermore, the silane coupling ag
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10:40am A1-1-9 High temperature oxi
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10:40am B4-2-10 Understanding the d
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11:00am B5-1-10 Hard nanocrystallin
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* Sandia National Laboratories is a
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fluidized bed of tin, zinc and alum
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mechanical and chemical properties.
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duration for super-low friction see
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stainless steel DIN X42Cr13 surface
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2:30pm TS1-1-3 Surface engineering
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X-ray diffraction patterns of the Z
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11:20am B6-1-11 Direct current magn
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loading situations could help to ob
Page 181 and 182: Energetic Materials and Micro-Struc
Page 183 and 184: The present work was supported by t
Page 185 and 186: silica-based hydrophilic coatings i
Page 187 and 188: extent depending on the actual grow
Page 189 and 190: [1] F. Tasnádi, B. Alling, C. Hög
Page 191 and 192: eproducibility of the preparation o
Page 193 and 194: showed by the uncoated 4140 steel s
Page 195 and 196: polarization resistance and corrosi
Page 197 and 198: thin films in which a multiscale mo
Page 199 and 200: centers, ascribed to conduction ele
Page 201 and 202: BP-26 Characterization of laser abl
Page 203 and 204: BP-38 Stress signature of an amorph
Page 205 and 206: simultaneously optimize materials p
Page 207 and 208: CP-17 Effects of UV Light Treatment
Page 209 and 210: amorphous structure with a smooth s
Page 211 and 212: addition, it was observed that the
Page 213 and 214: EP-5 The effective Indenter concept
Page 215 and 216: the substrates directly or after ra
Page 217 and 218: as-grown films using textured Si as
Page 219 and 220: proposed memory device exhibits exc
Page 221 and 222: FP-24 Effect of hydrogen addition o
Page 223 and 224: oxide obtained was correlated to th
Page 225 and 226: Post Deadline Discoveries and Innov
Page 227 and 228: chemical bonds have also been achie
Page 229 and 230: 9:40am B3-1-6 Compressive stress ge
Page 231: 10:20am D2-1-8 Corrosion Resistance
Page 235 and 236: PVD is a challenging task. The pres
Page 237 and 238: Chang, G.W.: C2-3/F4-3-3, 29; GP-3,
Page 239 and 240: Huang, K.H.: BP-33, 102 Huang, P.H.
Page 241 and 242: Moody, N.R.: F6-1-1, 7 Moon, S.: D1
Page 243 and 244: Szeremley, D.: G3-1-7, 68 Szesz, E.
Page 245 and 246: NOTES 145
Page 247 and 248: Description of Research Highlights:
Page 249 and 250: their presentations in order to eva
Page 251 and 252: NOTES 151
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Page 255 and 256: MARK YOUR CALENDAR FOR ICMCTF 2013!
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ICMCTF 2012! - CD-Lab Application Oriented Coating Development

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