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and
Special alloys for aerospace,
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applications. We provide finished components, bar stock, sheet,
tubes, wire, and rods of a wide range of compositions. For large
production, we offer
MIM, metal Injection molding.
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Zirconia Ceramics
Zirconium Oxide is widely used and has superior high
temperature properties. When combined with compounds of
yttria, strength and fracture toughness can be significantly
increased. This makes some grades of
Zirconia superior to
most materials for abrasion and wear resistance,
brittleness, and thermal shock resistance.
Zirconia is
electrical conductive above 900 °C.
Z
irconia engineered ceramic parts can be formed by single
axis pressing,
isostatic pressing, injection molding, slip
casting, or extrusion. Parts can "green machined" to near
net size before firing and then "hard" ground using diamond
tooling to tolerances less than 0.0002" (0.005 mm). Special
grades of
Zirconia can be metallized and/or brazed to metal
parts. Although the final properties of
Alumina ceramics
will be determined by the manufacturing method, they
generally will have the following properties:
Crystalline Zirconia
CRYSTAL PSZ is tetragonal form
for
Zirconia crystal, a totally different type of partially
stabilized
Zirconia. It is tougher, has higher hot strength, is
stronger and harder than ceramics or sapphire with lower
friction for bearings, wear surfaces and cutting tools.
CERAFLEX is a special, ultra
thin Zirconia in fully or partially stabilized grades used for
fuel cells,
oxygensensors, substrates, and instruments.
Zirconia Ceramics
| PROPERTIES |
Condition |
Units |
PSZMg |
PSZYt |
FSZYt |
| Mechanical |
| Stabilization |
|
|
MgO |
Y203 |
Y203 |
| Stabilization Percent (mole) |
|
% |
5.0 |
3.0 |
8.0 |
| Bulk Density |
20°C |
g/cm3 |
5.70 |
6.00 |
5.70 |
| Flexural (bending) Strength |
20°C |
Mpa |
620 |
850 |
140 |
| Elastic Modulus |
20°C |
Gpa |
200 |
200 |
- |
| Hardness |
20°C |
kg/mm2 |
11.5 |
12 |
- |
| Fracture Toughness |
20°C |
Mpa*m1/2 |
11 |
8 |
- |
| Porosity |
20°C |
% |
0 |
0 |
0 |
| Thermal |
| Max. Working temp |
- |
°C |
500 |
2400 |
2400 |
| Coef. Thermal Expansion |
25-1000°C |
10-6 /°C |
10.1 |
10.3 |
10.5 |
| Thermal Conductivity |
20°C |
W/m°K |
2.7 |
2.2 |
2.2 |
| Available Forms |
IsoPres, Die Pres, SlipCast, InjMold |
Zirconium(IV) oxide
Chemical names and formulas:
|
Formula |
ZrO2 |
|
Compound formula |
O2Zr |
|
Name |
Zirconium
(IV) oxide |
|
IUPAC name |
Dioxozirconium |
|
