Chempure Zirconia discs are versatile ceramic materials used in various applications due to their excellent properties such as high strength, fracture toughness, and resistance to wear and corrosion. Here are some common uses of zirconia discs:
1. Dental Applications
Dental Crowns and Bridges: Zirconia discs are widely used to fabricate dental crowns and bridges due to their biocompatibility, aesthetic appeal, and strength.
Dental Implants: They serve as the base material for dental implants, ensuring durability and compatibility with the human body.
2. Industrial Applications
Cutting Tools: Due to their hardness and wear resistance, zirconia discs are used in the manufacture of cutting tools for machining metals and other hard materials.
Grinding Media: In various grinding processes, zirconia discs serve as grinding media to crush and grind materials in industrial mills.
3. Medical Applications
Prosthetic Devices: Zirconia's biocompatibility makes it suitable for use in prosthetic joints and other orthopedic devices.
Surgical Instruments: The material's strength and resistance to sterilization processes make it ideal for surgical instruments.
4. Electronics
Substrates for Electronic Components: Zirconia discs are used as substrates for electronic components, providing a stable and durable base.
Oxygen Sensors: They are employed in oxygen sensors for automotive and industrial applications due to their ability to conduct oxygen ions at high temperatures.
5. Laboratory Equipment
Crucibles and Furnaces: Zirconia discs are used in crucibles and furnace linings for high-temperature experiments and processes.
Analytical Instruments: They are used in various analytical instruments where high thermal stability and resistance to corrosion are required.
6. Jewelry
Gemstones: Cubic zirconia, a crystalline form of zirconia, is widely used as a synthetic gemstone in jewelry due to its diamond-like appearance.
7. Aerospace
Thermal Barrier Coatings: In aerospace engineering, zirconia discs are used in thermal barrier coatings for jet engines and other high-temperature components.
Zirconia Wares
Zirconia wares are made from ceramic materials, which are inorganic, non-metallic compounds often consisting of crystalline oxides, nitrides, or carbides. Elements like carbon or silicon can also be considered ceramics. These materials are characterized by their brittleness, hardness, and strong compressive strength, but they are weak in shear and tension. Ceramics excel in resisting chemical erosion, making them suitable for use in acidic or caustic environments. They can withstand extremely high temperatures, typically ranging from 1,000 °C to 1,600 °C (1,800 °F to 3,000 °F).
Properties and Applications:
Bulk Density: 6 gm/cc
Working Temperature: Up to 2000°C
Stabilization: 8 mol% Yttria
Tolerance: +/- 2%
Zirconia wares are ideal for applications requiring high-temperature stability and resistance to thermal shock. They are commonly used in:
Laboratories: For high-temperature reactions and material processing.
Industrial Furnaces: As containers or supports for materials subjected to extreme heat.
Chemical Processing: Due to their resistance to corrosion and chemical erosion.
Care and Handling:
To ensure the longevity and performance of zirconia crucibles, follow these guidelines:
Avoid Overloading: Do not load excessive material into zirconia crucibles, as this increases the risk of uneven heating and potential damage.
Temperature Ramp Rates: Maintain a slow ramp rate and cooling rate to minimize thermal shock. Specifically:
Do not exceed 3°C/min during the sensitive temperature ranges of 100°C to 300°C and 1050°C to 1200°C.
In other temperature ranges, the rate can be faster but should remain below 5°C/min.
Cooling: Avoid removing the crucible from the furnace at high temperatures, as this can cause cracking. Ideally, remove it when the temperature is below 100°C.
Heating Methods: Do not heat zirconia crucibles with a torch or in furnaces that cannot control the rate of temperature change. Uneven heating can lead to cracking.
By adhering to these care guidelines, zirconia wares can provide reliable performance in high-temperature and chemically aggressive environments, making them invaluable in both industrial and laboratory settings.