Talc and pyrohyllite
Talc and pyrohyllite
Talc and pyrohyllite
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
EBS 425 - Mineral Perindustrian Lack of money is no obstacle.<br />
Lack of an idea is an obstacle.<br />
--Ken Hakuta<br />
Material Properties<br />
Pyrophyllite<br />
Property Unfired Ceramit 10<br />
Fired<br />
(800-1000°C)<br />
Ceramit 14<br />
Fired<br />
(1300°C)<br />
Density 2.4-2.55 g/cm 3<br />
Colour Grey Pink to dark brown Pink to dark brown<br />
Mohs Hardness 2.5 5 7<br />
Porosity 1.8-2.0% 2.66±0.02% 0.01%-nil<br />
Softening Temp - 1600°C 1600°C<br />
Max Service Temp - 1000°C 1100°C<br />
Thermal Exp. Co-eff.<br />
(20-600°C)<br />
Compressive Strength<br />
KN/cm²<br />
Cross Bend Strength<br />
KN/cm²<br />
Tensile Strength<br />
KN/cm²<br />
Volume resistivity<br />
Dielectric Strength<br />
(using a 5mm test<br />
piece)<br />
20°C<br />
300°C<br />
500°C<br />
700°C<br />
900°C<br />
- 2.9-3.5x10 -6 m/m/°C 6-8 x10 -6 m/m/°C<br />
- 10.3 15.16<br />
1.13-1.58 3.37 18.27<br />
1.03 2.34 3.44<br />
-<br />
-<br />
-<br />
-<br />
-<br />
Same as Ceramit 14<br />
when dry<br />
Power factor - -<br />
10 14 MΩ/cm 3<br />
10 9 MΩ/cm 3<br />
10 6 MΩ/cm 3<br />
10 5 MΩ/cm 3<br />
10 4 MΩ/cm 3<br />
- - 24Kv<br />
.01-.13 @1mHz tanδ x<br />
10 4<br />
Permittivity - - 5.2<br />
TE Value - - 700°C<br />
Loss Factor - - .05 @ 1000KHz<br />
Thermal Conductivity 1.5 W/m.K 1.9 W/m.K<br />
Dr. Kamar Shah Ariffin Page 20 of 21
Change language