|
Description |
Unit |
Alumina 99.5/99.7/99.8 |
Alumina 98 /99 |
Alumina 95/96 |
Alumina 90 |
Magnesia/Yttria Stabilized Zirconia |
Sintered Silicon Carbide |
|
Density |
gm/cc |
3.85+/-0.05 |
3.80 ± 0.05 |
3.70 ± 0.05 |
3.50 ± 0.05 |
5.75 ± 0.05 |
3.10+/-0.05 |
|
Porosity |
% |
Nil |
Nil |
Nil |
Nil |
Nil |
Nil |
|
Alumina Content |
% |
99.5 |
98 |
95 |
90 |
-- |
-- |
|
Zirconia Content |
% |
-- |
-- |
-- |
-- |
90-95 |
-- |
|
SIC Content |
% |
-- |
-- |
-- |
-- |
-- |
100 |
|
Tensile Strength |
kpsi |
36 ± 3k |
32 ± 3 |
25 ± 3 |
24 ± 3 |
25 ± 3 |
50+/-4 |
|
Compressive Strength |
kpsi |
360 ± 10 |
325 ± 10 |
300 ± 10 |
280 ± 10 |
300 ± 10 |
380+/-10 |
|
Transverse Breaking Strength |
kpsi |
50 ± 4 |
48 ± 4 |
48 ± 4 |
46 ± 4 |
85 ± 2 |
55+/-4 |
|
Hardness |
Vickers HV1 |
2000 |
1900 |
1800 |
1600 |
1700 |
2600 |
|
Surface Finish on lapped face |
Micron |
Less than 0.3 |
Less than 0.3 |
Less than 0.3 |
Less than 0.3 |
Less than 0.3 |
Less than 0.3 |
|
Flatness on polished face |
Light Band |
Within 2 |
Within 2 |
Within 2 |
Within 2 |
Within 2 |
Within 2 |
|
Parallelism on lapped face |
Micron |
Within 20 |
Within 20 |
Within 20 |
Within 20 |
Within 20 |
Within 20 |
|
Colour |
-- |
Ivory / White |
White / Pink |
White / Pink |
White |
Yellow/White |
Black |
|
Applications |
-- |
High Dielectric Insulation, Chemical Seals, Sleeves, Crucibles, Tubes, Wire & thread guides, Vacuum, Semiconductors, Hydrocyclones |
Ceramic Ferrules |
Ceramic Seal faces, Thread & Wire drawing guides, Igniters, Ferrules |
Grinding Media Balls, Wear Resistant Tiles & Ball mill Liners |
Wire drawing cones, rings & guides |
Seal faces, Tubes, Tiles |