Precision machined chemically stable zirconia ceramic shafts

Overview of zirconia ceramic shaft

Zirconia ceramic shaft is a high-performance shaft component made of zirconium oxide (ZrO₂) as the main material and processed by fine ceramic technology. The zirconia ceramic shaft is also a kind of zirconia ceramic part. Its base material, zirconia ceramic, has extremely high hardness, strength and toughness. Its hardness at room temperature is second only to diamond, and its fracture toughness is significantly better than that of ordinary ceramic materials. Zirconia ceramic shaft has excellent wear resistance, corrosion resistance and oxidation resistance, and can maintain stable performance in a wide temperature range of -50°C to 1200°C.

Zirconia ceramic shaft also has good electrical insulation and creep resistance. Due to its unique material properties, it is widely used in mechanical transmission, semiconductor manufacturing, aerospace and other fields and is often used to replace traditional metal shafts to meet the needs of high temperature, strong corrosion or high-precision working conditions.

Features of zirconia ceramic shaft

Zirconia ceramic shafts have many excellent properties. Zirconia ceramic shafts have extremely high hardness, second only to diamond, which makes them have excellent wear resistance, can maintain good performance during long-term operation, reduce a series of problems caused by wear, and extend the service life of the equipment. At the same time, zirconia ceramic shafts also have good high-temperature resistance, can work stably in high-temperature environments, are not prone to deformation or performance degradation, and provide reliable support for some equipment running under high-temperature conditions.

Zirconia ceramic shafts are corrosion-resistant and can show good resistance to acidic, alkaline or other corrosive media. They will not be easily damaged by corrosion, ensuring the continuity and safety of work. In terms of mechanical properties, zirconia ceramic shafts have high strength, can withstand large loads, and have good creep resistance. They will not produce obvious deformation due to long-term stress, providing a strong guarantee for the stable operation of the equipment.

Zirconia ceramic shafts also have excellent anti-oxidation properties. They will not oxidize after long-term use in the air, which further enhances their service life. In terms of processing accuracy, zirconia ceramic shafts can be manufactured with high-precision sizes and shapes to meet the needs of some equipment with extremely high precision requirements. Moreover, it has good insulation properties and does not conduct electricity, making it suitable for some occasions that require electrical insulation.

Specifications Table of zirconia ceramic shaft

Specification	Details
Material	Zirconia (ZrO₂) ceramic, typically stabilized with Yttria (Y₂O₃)
Density	5.8-6.1 g/cm³
Hardness	Vickers hardness: 1200-1300 HV
Flexural Strength	1000-1200 MPa
Compressive Strength	2000-2500 MPa
Fracture Toughness	8-10 MPa·m½
Young’s Modulus	210-230 GPa
Thermal Conductivity	2.0-2.5 W/m·K
Coefficient of Thermal Expansion	10-12 x 10⁻⁶/K
Operating Temperature Range	-50°C to 1200°C
Surface Finish	Polished to a high gloss finish, surface roughness < 0.1 µm Ra
Dimensional Tolerance	±0.01 mm (standard), ±0.005 mm (precision grade)
Length	Customizable, typical range: 50 mm to 500 mm
Diameter	Customizable, typical range: 5 mm to 50 mm
Shaft Geometry	Straight, stepped, or custom profiles
Applications	Mechanical seals, pump shafts, valve stems, semiconductor equipment, aerospace components

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Applications of zirconia ceramic shaft

Zirconia ceramic shafts have significant applications in many fields. In the machinery manufacturing industry, zirconia ceramic shafts are widely used in motor manufacturing, especially suitable for high-speed rotation and high-temperature environments. Zirconia ceramic shafts are also commonly used in water pump shafts. Their excellent wear resistance and corrosion resistance enable them to handle corrosive media and high-temperature liquids effectively. In addition, they also play a key role in mechanical transmission systems, such as being used to manufacture high-frequency and high-temperature special ceramic positioning plungers, etc.

In the automotive industry, zirconia ceramic shafts are mainly used in oxygen sensors and engine components. Oxygen sensors are key components for controlling engine emissions and reducing pollution. Zirconia oxygen sensors are widely used due to their excellent performance. In addition, the high temperature resistance and mechanical stability of zirconia ceramics also make them used in high-performance engine components.

In the electronics field, zirconia ceramic shafts are used in semiconductor manufacturing equipment with high precision and stability to ensure the precise operation of the equipment. For example, zirconia ceramic shafts play an important role in the planetary gears of ultra-micro motor drives. In the medical field, zirconia ceramic shafts are used to manufacture dental restoration materials, surgical tools, and implants such as artificial joints due to their good biocompatibility, high strength and corrosion resistance.

Zirconia ceramic shafts are also used in the aerospace field and can be used as thermal barrier coatings in turbine engines. Their high-temperature resistance and mechanical stability provide additional safety protection for the engine. In addition, zirconia ceramic shafts are also widely used in jewelry, 3C electronics, smart wearables, optical communications and other fields, such as mobile phone back panels and structural parts in the 3C electronics field, and high-end ceramic watches in the smart wearable field.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. The company exports to many countries, such as the USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are interested, please send an email to sales1@rboschco.com

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Shipment Term

By air, by sea, by express, as customers request.

5FAQs of zirconia ceramic shaft

Q1:What are the advantages of zirconia ceramic shafts over metal shafts?

Compared with metal shafts, zirconia ceramic shafts have higher hardness and wear resistance, which can significantly extend the service life of the shaft; zirconia ceramic shafts have excellent corrosion resistance and can be used in various harsh chemical environments; they have a lower density, which can make the equipment lighter; they also have good electrical insulation and creep resistance.

Q2:What should be paid attention to when using zirconia ceramic shafts?

During use, the zirconia ceramic shaft should be protected from severe impact and collision to avoid breakage; at the same time, care should be taken to prevent breakage due to the different expansion coefficients of the materials, especially when used with steel shafts. Installation and use must be carried out in strict accordance with the operating procedures.

Q3:How to choose the right zirconia ceramic shaft?

When selecting a zirconia ceramic shaft, its material, specification, size and accuracy level should be determined according to specific use requirements and working conditions, such as speed, load, working temperature, medium, etc.

Q4:How to ensure the surface quality of zirconia ceramic shaft?

During the processing, appropriate processing technology and tools should be used, such as sharp tools, optimized cutting paths and cutting parameters, to reduce cutting forces and reduce surface roughness. At the same time, auxiliary processing technologies such as ultrasonic vibration processing can further improve surface quality.

Q5:What precautions should be taken when using zirconia ceramic shafts in high temperature environments?

When using zirconia ceramic shafts in high-temperature environments, care should be taken to prevent thermal shock. The temperature should be increased and decreased slowly to reduce the temperature difference and avoid cracking caused by sudden cooling or heating. Since high temperatures will reduce the strength of the zirconia ceramic shaft, the load must be designed reasonably to prevent overload. At the same time, when mating with metal parts, the thermal expansion difference should be considered, and the mating clearance should be designed reasonably to prevent jamming or loosening.

In addition, the shaft can be subjected to surface treatment, such as anti-oxidation coating, to improve its oxidation resistance. Finally, the performance of the zirconia ceramic shaft, such as dimensional accuracy, surface quality and mechanical properties, should be monitored regularly, and any problems should be addressed in a timely manner.