Zirconia powder for sale

Zircônia, also known as ZrO2, is an inorganic non-metallic material that is resistant to high temperatures, corrosão, 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, cerâmica funcional, e cerâmica estrutural.

Zirconia powder introduction

Pó de zircônia (ZrO₂) is a functional ceramic material with high melting point, força elevada, 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

Assunto	Classificação
	3YZ-TPZ	5YZ-TPZ	8YZ-TPZ
ZrO2  % em peso	84.3~84,7	90.6~91,0	86~86,4
Y2O3  % em peso	5.18~5,22	8.6~9,0	13.3~13,7
al2O3  ppm	＜100	0.05~0,45(% em peso)	0.05~0,45(% em peso)
Fé2O3  ppm	＜50	＜50	＜50
SiO2  ppm	＜200	＜200	＜200
TiO2  ppm	＜50	＜50	＜50
Already2O 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
Detail level D50 μm	＜0,5
pH	6.5
Apparent density, g/cm3	1.15~1,25

(2) Partially stabilized zirconia (PSZ) e óxido de alumínio, reinforced with zirconia (ZTA)

Assunto	Especificação
	Ce13	Ce85	ZTA20	ZTA30
ZrO2  % em peso	86~88	13.5~14,5	18~20	27.4~29,4
Y2O3  % em peso	/	/	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
Fé2O3  %	＜0,002
TiO2  %	＜0,005
Already2O %	＜0,001
Cr %	＜0,02
D50 μm	0.5~1
Lgloss %	＜1,0

(3) Ultrafine high purity zirconium powder

Item	Especificação
ZrO2  % em peso	≥99,7
Y2O3  % em peso	/
al2O3  ppm	＜100
Fé2O3  ppm	＜50
SiO2  ppm	＜200
TiO2  ppm	＜100
Already2O ppm	＜50
k2O 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): Excelente estabilidade térmica;

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, etc.)

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, vidro óptico, 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.