Zirconia Ceramic Spoolmerits
The biggest advantage of zirconia ceramic spool lies firstly in the strong wear resistance and long-term sealing stability. In the process of opening, closing and regulating the valve spool needs to repeatedly contact with the valve seat friction, ordinary metal materials are prone to wear and tear resulting in seal failure, while zirconia ceramics by virtue of the high hardness and high density, can be maintained for a long time to keep the contact surface flat, significantly extending the sealing life. Zirconia ceramics are suitable for industrial valves and automated fluid systems that require high sealing reliability, corrosion resistance and long-term stability.
Description

Advantages of zirconia ceramic spools
Zirconia ceramic spools are high-performance precision ceramic sealing control components that are widely used in fluid control valves, precision metering valves, and chemical valves. As the core movement and sealing element inside the valve, the spool needs to withstand friction, pressure changes, media corrosion and frequent opening and closing for a long time, so the material performance requirements are extremely high, and zirconia ceramics are the ideal high-end choice.
- High hardness and wear resistance
- High toughness and impact resistance
- High sealing accuracy
- High surface finish
- Excellent corrosion resistance
- Stable at high temperatures
Application of magnesium-stabilized zirconia ceramics
Magnesium-stabilized zirconia ceramics are widely used in several fields due to their unique performance characteristics:
1. Industrial applications:
Wear-resistant parts: Used in the manufacture of highly wear-resistant mechanical parts, such as pump bushings, sealing rings and valve components, which can significantly extend the service life of the equipment.
Cutting tools: Used in the manufacture of cutting tools and cutting tools, due to its high hardness and wear resistance can maintain good performance in high-precision machining.
2. Aerospace:
High-temperature components: Used as high-temperature structural components in aero-engines and gas turbines, capable of withstanding extremely high temperatures and pressurized environments.
Thermal Barrier Coatings: Surface coatings for turbine blades and other high-temperature components that provide excellent thermal protection.
3. Electronic and electrical:
Insulators and substrates: Used as insulators and substrates for high-frequency circuits and power electronics due to their excellent electrical insulation properties and thermal stability.
4. Chemicals and energy:
Catalyst Carrier: Used in the chemical industry as a catalyst carrier, providing good chemical stability and high temperature performance.
Fuel Cell Components: Used as an electrolyte material in solid oxide fuel cells, its ionic conductivity and high temperature resistance enhance cell efficiency and life.
Magnesium-stabilized zirconia ceramics play a key role in a variety of fields thanks to their excellent physical and chemical properties, significantly enhancing the performance and durability of equipment.
Basic properties of magnesium-stabilized zirconia ceramics
Magnesium-stabilized zirconia ceramics use magnesium oxide (MgO) as a stabilizer for zirconia, and the crystal structure is cubic lattice after molding, which is more stable. Magnesia-zirconia has better resistance to high temperature and humidity because it is not affected by phase migration. Magnesia-zirconia maintains its strength even in humid, high-temperature environments where the mechanical properties of yttrium oxide partially stabilized zirconia begin to deteriorate.
- Color: yellow
- Density: 5.7 g/cm3
- Hardness: 11.8 GPa
- Maximum working temperature: 2000°C
- Thermal conductivity: 2.2W.(MK)-1
- Flexural strength: ≥900 Mpa
- Fracture toughness: >7.0 (Mpa.m1/2)
- Coefficient of thermal expansion (0~1400℃): 10.2×10-6/℃
Suppliers of Magnesium-stabilized zirconia ceramics
To Good Ceramics is a professional ceramic supplier, we have many years of experience in producing high quality precision ceramic parts. We utilize our experienced team and in-depth knowledge of ceramic materials to create the best precision ceramic products for our customers at competitive prices.





