We are supplying a wide variety of ceramic tubes and rods manufactured from advanced technical ceramics including
# alumina(Alsint 99.7 Type C 799/ Rubalit C 799/99.7% al2O3, 96% Dense Al2O3,Pythagoras Type C 610/ Dimulit C610, Sillimatin 60 Type C 530,Mullite/ Aluminium Silicate/3Al2O3•2SiO2),
# zirconia (TTZ/ Magnesia partially stabilized ZrO2;YTZP/Yttria partially stabilized ZrO2;ZDY/ Yttria fully stabilized ZrO2)
# silicon carbide (Recrystallized sic,nitride bonded sic, reaction sintering sic/RB sic)
Physical Properties of alumina
* Good electrical insulation
* High mechanical strength
* Excellent wear resistance
* Excellent corrosion resistance
* Low dielectric constant
| Material |
Alumina |
Zirconia |
Recrystallization |
Silicon Nitride bonded |
| Silicon carbide |
Silicon Carbide |
| Properties |
Units |
AL997 |
AL995 |
AL99 |
AL95 |
Zro2 |
RSiC |
NSiC |
| %Alumina |
-- |
99.70% |
99.50% |
99.00% |
95% |
-- |
-- |
-- |
| Color |
-- |
lvory |
lvory |
lvory |
lvory&White |
lvory White |
black |
gray |
| Permeability |
-- |
Gas-tight |
Gas-tight |
Gas-tight |
Gas-tight |
Gas-tight |
-- |
-- |
| Density |
g/cm³ |
3.94 |
3.9 |
3.8 |
3.75 |
5.89 |
2.7 |
2.8 |
| Straightness |
-- |
1‰ |
1‰ |
1‰ |
1‰ |
1‰ |
1‰ |
1‰ |
| Hardness |
Mohs Scale |
9 |
9 |
9 |
8.8 |
8.5 |
9.5 |
9 |
| Water Absorption |
-- |
≤0.2 |
≤0.2 |
≤0.2 |
≤0.2 |
0 |
0 |
0 |
| Flexural Strength |
Mpa |
375 |
370 |
340 |
304 |
1200 |
90 |
180 |
| (Typical 20ºC) |
| Compressive |
Mpa |
2300 |
2300 |
2210 |
1910 |
5700 |
600 |
650 |
| Strength |
| (Typical 20ºC) |
| Coefficient of |
10-6/ºC |
7.6 |
7.6 |
7.6 |
7.6 |
10 |
4.7 |
5 |
| Thermal |
| Expansion |
| (25ºC to 800ºC) |
| Dielectric |
AC-kv/mm |
10 |
10 |
10 |
10 |
-- |
-- |
-- |
| Strength |
| (5mm Thickness) |
| Dielectric Loss |
-- |
<0.0001 |
<0.0001 |
0.0006 |
0.0004 |
0.001 |
-- |
-- |
| 25ºC@1MHz |
| |
| Dielectric |
25ºC@1MHz |
9.8 |
9.7 |
9.5 |
9.2 |
29 |
-- |
-- |
| Constant |
Application:
Insulators, capacitors, resistors, furnace tubes, sealing refractory parts, foundry shapes, wear pads,
thermocouple protection tubes, cutting tools and polishing/grinding powders, ballistic armor, laboratory equipment, bio-ceramic parts for orthopedic and dental surgery, bearings
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