지르코니아, also known as ZrO2, is an inorganic non-metallic material that is resistant to high temperatures, 부식, and wear, and has excellent electrical conductivity. In addition to its traditional applications in refractory materials and ceramic pigments, ZrO2 is also used in high-tech fields such as electronic ceramics, 기능성 도자기, 그리고 구조적 세라믹.
Zirconia powder introduction

지르코니아 분말 (ZrO₂) is a functional ceramic material with high melting point, 고강도, high toughness, and excellent chemical stability.
As one of the most important basic raw materials for advanced ceramics, zirconium oxide is widely used in high-end fields such as structural ceramics, oxygen sensors, fuel cells, electrode coatings, and optical coatings due to its excellent mechanical properties and ionic conductivity. Zirconia powder is a white to light gray powder that can exist in monoclinic, tetragonal, or cubic crystal structures.
With a melting point as high as 2715°C, and possessing both hardness and strength, it is known as “ceramic steel.”
It is prepared using chemical co-precipitation or hydrolysis methods, resulting in powders with high purity and excellent dispersibility.
Physical and chemical characteristics of zirconium oxide powder
(1) Polycrystalline ultrafine zirconium dioxide powder, yttrium stabilized
| 주제 | 분류 | ||
| 3YZ-TPZ | 5YZ-TPZ | 8YZ-TPZ | |
| ZrO2 중량% | 84.3~84.7 | 90.6~91.0 | 86~86.4 |
| 와이2영형3 중량% | 5.18~5.22 | 8.6~9.0 | 13.3~13.7 |
| 알2영형3 ppm | <100 | 0.05~0.45(중량%) | 0.05~0.45(중량%) |
| 철2영형3 ppm | <50 | <50 | <50 |
| SiO2 ppm | <200 | <200 | <200 |
| TiO2 ppm | <50 | <50 | <50 |
| Already2O ppm | <50 | <50 | <50 |
| 케이2O 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 |
| Detail level D50 μm | <0.5 | ||
| PH | 6.5 | ||
| Apparent density, g/cm3 | 1.15~1.25 | ||
(2) Partially stabilized zirconia (PSZ) 그리고 산화알루미늄, reinforced with zirconia (ZTA)
| 주제 | 사양 | |||
| Ce13 | Ce85 | ZTA20 | ZTA30 | |
| ZrO2 중량% | 86~88 | 13.5~14.5 | 18~20 | 27.4~29.4 |
| 와이2영형3 중량% | / | / | 1~1.2 | 1.4~1.6 |
| CaO % | <0.01 | |||
| MgO % | <0.01 | |||
| 최고 경영자2 % | 12~14 | 84.5~85.5 | / | / |
| 알2영형3 % | <0.01 | 79.5~80.5 | 69.5~70.5 | |
| SiO2 % | <0.015 | |||
| 철2영형3 % | <0.002 | |||
| TiO2 % | <0.005 | |||
| Already2영형 % | <0.001 | |||
| 크롬 % | <0.02 | |||
| D50 μm | 0.5~1 | |||
| 엘글로스 % | <1.0 | |||
(3) Ultrafine high purity zirconium powder
| 안건 | 사양 |
| ZrO2 중량% | ≥99.7 |
| 와이2영형3 중량% | / |
| 알2영형3 ppm | <100 |
| 철2영형3 ppm | <50 |
| SiO2 ppm | <200 |
| TiO2 ppm | <100 |
| Already2O ppm | <50 |
| 케이2O ppm | <100 |
| CeO ppm | <100 |
| MgO ppm | <100 |
| Cr ppm | <500 |
| BET m2/g | 5~15 |
| Detail level D50 μm | <0.5 |
| PH | 6.5 |
| Apparent density, g/cm3 | 0.5~1.0 |
Main characteristics of ZrO2 powder

High hardness and high toughness: excellent fracture resistance;
High melting point (2715°C): 우수한 열 안정성;
Good chemical inertness: resistant to acids, alkalis and high-temperature corrosion;
Low thermal conductivity and high dielectric strength;
Can be doped for stability (Y₂O₃, CaO, MgO, 등.)
Zirconia powder application
- Used in the manufacture of metallic zirconium and zirconium compounds, refractory bricks and crucibles, high-frequency ceramics, abrasive materials, ceramic pigments, and zirconates.
- It can be used as a highly efficient high-temperature insulation and refractory material.
- It can be used in the manufacture of structural ceramics and functional ceramics, as well as artificial gemstones.
- It is used as a high-purity reagent and a light source for infrared spectral bands, and also in the preparation of high-purity zirconium salts.
- It is also used in the production of steel and non-ferrous metals, 광학 유리, and zirconium dioxide fibers. It is also used in ceramic pigments, electrostatic coatings, and baking varnishes. In epoxy resins, it can increase resistance to corrosion from hot salt water.
- It is used in the atomic energy industry, defense industry, electronic components, ceramic colorants, and high-temperature resistant materials.

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