Zirconia Ceramic Ring
Zirconia ceramic rings and YSZ rings have fine grains and are wear-resistant, corrosion-resistant, and rust-free. When used as a ring knife, they can scrape oil cleanly, and the blade remains bright and dense after long-term use. They have good sealing performance and effectively prevent ink leakage. Their service life is 4 to 5 times longer than that of metal knife cup rings. They have high comprehensive benefits and are ideal substitutes for steel and alloy ring knives.
Material Performance of Zirconia
| Physical Property | ||||
| Item | Unit | ZrO2-Y2O3 | ||
| Purity | \ | 94.40% | 94% | 94% |
| Color | \ | White | Black | Blue |
| Density | g/cm3 | 6 | 5.6 | 6 |
| Mechanical properties | ||||
| Bending strength (20℃) | MPa | 800 | 710 | 900 |
| Compressive strength (20℃) | MPa | 2000 | 2000 | 2000 |
| Elastic modulus (20℃) | GPa | 200 | 210 | 220 |
| Fracture toughness (20℃) | MPa m½ | 9 | 8 | 8 |
| Hardness (20℃) | HRA | 88 | 85 | 90 |
| Vickers hardness (HV1) | kg/mm2 | 1175 | 1100 | 1220 |
| Rockwell hardness (45N) | R45N | 78 | 75 | 78 |
| Thermal properties
| ||||
| Coefficient of thermal expansion（20℃-1000℃） | 10-6K-1 | 9.6 | 9.5 | 10 |
| Thermal conductivity | W/(m·K) | 2.5 | 3 | 3 |
| Thermal shock stability | △T℃ | 250 | 300 | 300 |
| Specific heat capacity | J/g·k | 0.46 | 0.48 | 0.46 |
| Maximum operating temperature（in air） | ℃ | 800 | 800 | 800 |
| Electrical properties | ||||
| Volume resistance (20℃) | Ω·cm | 10^14 | 10^14 | 10^14 |
| Dielectric strength (insulation strength) | KV/mm | 13 | 13 | 13 |
| 1MHZ dielectric constant room temperature | 28 | 28 | 28 | |
Properties of zirconia ceramics
-High Hardness and High Strength: Zirconia ceramics have extremely high hardness and strength and can maintain their structural integrity under high stress.
YSZ Ring
-Wear Resistance: Due to its high hardness, zirconia ceramics have excellent wear resistance and are suitable for high-wear environments.
-Corrosion Resistance: Zirconia ceramics have strong corrosion resistance to a variety of chemicals, making them perform well in corrosive environments.
-High Temperature Stability: This material can still maintain its mechanical properties at high temperatures and is suitable for high-temperature application scenarios.
-Low Thermal Conductivity: Zirconia ceramics have low thermal conductivity and good thermal insulation properties.
Applications of Zirconia ceramic ring
-Industrial machinery: Due to its wear resistance and high strength, zirconia ceramics are often used to manufacture industrial machinery parts such as bearings, sealing rings, valve parts and nozzles.
-Electronic components: Zirconia ceramics have good electrical insulation properties and are used to manufacture electronic components such as ceramic insulator rings.
-Cutting tools: Due to its high hardness, zirconia ceramics are used to manufacture cutting tools and knives, such as zirconia ceramic ring knives
-Oil and gas industry: Zirconia ceramics are used to manufacture seal rings, valves, and other key components in corrosive and high-pressure environments.
Packing of advanced ceramics
Our Zirconia Ceramic Rings are carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.