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info@rsrefractories.comZirconia powder(Zirconium Oxide、Yttria Stabilized Zirconia) is the basic material of making zirconia special ceramics, advanced refractory production, optical communication equipment, new energy material. As the raw material of key materials of cutting-edge technology, the application of high purity ultrafine composite zirconia powder is expanding. It has low temperature sintering, zirconium components made of high hardness, good strength, good whiteness.
（1）Yttria Stabilized Zirconia Powder
|
Item |
Classification |
||
|
3YZ-TPZ |
5YZ-TPZ |
8YZ-TPZ |
|
|
ZrO2 wt% |
84.3~84.7 |
90.6~91.0 |
86~86.4 |
|
Y2O3 wt% |
5.18~5.22 |
8.6~9.0 |
13.3~13.7 |
|
Al2O3 ppm |
＜100 |
0.05~0.45(wt%) |
0.05~0.45(wt%) |
|
Fe2O3 ppm |
＜50 |
＜50 |
＜50 |
|
SiO2 ppm |
＜200 |
＜200 |
＜200 |
|
TiO2 ppm |
＜50 |
＜50 |
＜50 |
|
Na2O ppm |
＜50 |
＜50 |
＜50 |
|
K2O ppm |
＜100 |
＜100 |
＜100 |
|
CeO ppm |
＜100 |
＜100 |
＜100 |
|
MgO ppm |
＜100 |
＜100 |
＜100 |
|
Cr ppm |
＜500 |
＜500 |
＜500 |
|
BET m2/g |
5~30 |
10~32 |
10~32 |
|
Granularity D50 μm |
＜0.5 |
||
|
PH |
6.5 |
||
|
Apparent Density g/cm3 |
1.15~1.25 |
||
(2) Partially Stabilized Zirconia（PSZ）and Zirconia Toughened Alumina（ZTA）
|
Item |
Specification |
|||
|
Ce13 |
Ce85 |
ZTA20 |
ZTA30 |
|
|
ZrO2 wt% |
86~88 |
13.5~14.5 |
18~20 |
27.4~29.4 |
|
Y2O3 wt% |
/ |
/ |
1~1.2 |
1.4~1.6 |
|
CaO % |
＜0.01 |
|||
|
MgO % |
＜0.01 |
|||
|
CeO2 % |
12~14 |
84.5~85.5 |
/ |
/ |
|
Al2O3 % |
＜0.01 |
79.5~80.5 |
69.5~70.5 |
|
|
SiO2 % |
＜0.015 |
|||
|
Fe2O3 % |
＜0.002 |
|||
|
TiO2 % |
＜0.005 |
|||
|
Na2O % |
＜0.001 |
|||
|
Cr % |
＜0.02 |
|||
|
D50 μm |
0.5~1 |
|||
|
Lgloss % |
＜1.0 |
|||
(3) High Purity Ultrafine Zirconia Powder
|
Item |
Specification |
|
ZrO2 wt% |
≥99.7 |
|
Y2O3 wt% |
/ |
|
Al2O3 ppm |
＜100 |
|
Fe2O3 ppm |
＜50 |
|
SiO2 ppm |
＜200 |
|
TiO2 ppm |
＜100 |
|
Na2O ppm |
＜50 |
|
K2O ppm |
＜100 |
|
CeO ppm |
＜100 |
|
MgO ppm |
＜100 |
|
Cr ppm |
＜500 |
|
BET m2/g |
5~15 |
|
Granularity D50 μm |
＜0.5 |
|
PH |
6.5 |
|
Apparent Density g/cm3 |
0.5~1.0 |
| Composition | ZrO2 65%; SiO2 35% |
| Real Density | 4.0g/cm3 |
| Bulk Density | 2.5g/cm3 |
| Moh’s Hardness | 8 |
| Wear Rate Per Ton | 0.03kg/h |
| Color | Milky White |
| Performance | ||
| Component | Wt% | 94.6%ZrO2,5.2%Y2O3 |
| Filled Density | Kg/l | 3.5(φ5mm) |
| 密Density | g/cm3 | ＞6.00 |
| Hardness | >1200 | |
| Elasticity Modulus | GPa | 200 |
| Thermal Conductivity | W/m.k | 3 |
| Coefficient of Thermal Expansion | 10*10-6/℃(20-400) | 9.6 |
| Crush Strength | Kgf | ＞120(φ1.5mm) |
| Bending Toughness | MPam1/2 | 8 |
| Grain Size | Um | ≤0.5 |
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