Suoyi Yttrium-stabilized zirconia powder (YSZ powder) is a nano-ceramic powder
2026-07-01
Yttrium-stabilized zirconia powder (YSZ powder) is a nano-ceramic powder synthesized through a chemical co-precipitation process using high-purity zirconia as a base material and incorporating a measured amount of yttrium oxide as a stabilizer. It is available in three main types based on yttrium oxide content: 3YSZ, 5YSZ, and 8YSZ, and is a core raw material for preparing high-performance zirconia ceramics.
SUOYI Yttrium-Stabilized Zirconia (YSZ) has 10 core advantages:
1. Ultra-high room temperature & high temperature flexural strength: Far exceeding that of alumina ceramics, exhibiting excellent fracture toughness, less prone to chipping and cracking, and outstanding impact resistance.
2. Excellent fracture toughness (toughening properties): Martensitic phase transformation toughening, automatic passivation and crack arrest during crack propagation, making it a top-tier toughness material among commonly used structural ceramics.
3. Low thermal conductivity and good thermal insulation performance: Thermal conductivity is far lower than that of metals and alumina, providing stable thermal insulation at high temperatures and reducing heat loss.
4. Low coefficient of thermal expansion, strong dimensional stability: Minimal deformation under high and low temperature cycling conditions, ensuring precision parts maintain their dimensions without deformation over long-term use.
5. High temperature resistance and oxidation resistance: Can operate stably at 800–1500℃ for extended periods without oxidation or pulverization in air.
6. Resistant to acid and alkali corrosion, strong chemical inertness: Not easily corroded by strong acids, strong alkalis, and molten salt environments; does not react with most metals or chemical media.
7. Excellent insulation and stable dielectric properties: Maintains high insulation even at high temperatures, with no risk of electrical conductivity or leakage, suitable for electronic and high-temperature insulating components.
8. Wear resistance and low friction loss: High hardness and good self-lubricating properties; friction pair service life far exceeds that of stainless steel and ordinary ceramics.
9. Excellent biocompatibility, non-toxic and no leaching: Contains no heavy metals; no rejection upon implantation in the human body; can be in long-term contact with bodily fluids.
10. Wide Processing Adaptability: Can be dry-pressed, isostatically pressed, cast ironed, and injection molded. After sintering, it can be finely ground, polished, and grooved to create complex precision parts.
Applications of SUOYI Yttrium Stabilized Zirconia Powder:
1. Dental Medical Field (mainly 3Y Zirconia): All-ceramic crowns, bridges, veneers, implant abutments; excellent translucency, high strength, aesthetics, and durability.
1. Dental Medical Field (mainly 3Y Zirconia): All-ceramic crowns, bridges, veneers, implant abutments; excellent translucency, high strength, aesthetics, and durability.
2. New Energy Batteries (mainly 8YSZ): Solid oxide fuel cell (SOFC) electrolyte membranes, high-temperature battery seals, ceramic supports.
3. Precision Machinery Wear-Resistant Parts: Ceramic bearings, nozzles, valve cores, wire drawing dies, cutting tools, pump body wear-resistant liners, textile yarn guides.
4. Electronic Semiconductor Industry: High-temperature insulating terminals, sensor substrates, oxygen sensor probes, wafer carrier ceramic parts.
5. High-Temperature Metallurgy/Heat Treatment: Thermal insulation linings, crucibles, thermocouple protection tubes, high-temperature clamps, molten metal guides. 6. Precision Optical Components: Optical lens mounts, fiber optic ceramic ferrules, positioning sleeves; low deformation ensures optical precision.
7. Medical Device Implants: Artificial joint bulbs, bone repair scaffolds, wear-resistant ceramic tips for surgical instruments.
8. Powder Coating/Chemical Equipment: Corrosion-resistant agitators, grinding media balls, corrosion-resistant reaction liners, spray ceramic nozzles.
9. Automotive Industry: Zirconium tubes for oxygen sensors, turbocharger heat insulation components, precision valve ceramic parts.
10. High-End Ceramic Jewelry: Zirconia ceramic rings and pendants; colorfast, wear-resistant, and hypoallergenic.
SUOYI Yttrium Stabilized Zirconia (YSZ) Complete Industrial Production Process
1. Precise dissolution of high-purity zirconium-yttrium raw materials
2. Co-precipitation to prepare a uniform precursor
3. Water washing to remove impurities and calcination to obtain nano-YSZ powder
4. Wet sand milling + spray granulation to produce formable powder
5. Dry pressing / isostatic pressing / tape casting / injection molding to form green bodies
6. Low-temperature segmented debinding to remove organic binders
7. High-temperature sintering at 1450–1550℃ for densification
8. Grinding, polishing, and finishing
9. Performance testing and finished product warehousing
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