Zirconia Ceramics
Your Professional Zirconia Ceramics Supplier
Superior Ceramics Times Technology Co., Ltd. is a manufacturer specializing in the production of advanced ceramic materials, including nitrides, oxides, carbides, and composite ceramics. Our product portfolio encompasses silicon carbide, aluminum nitride, alumina, ultrapure alumina, yttria, zirconia, high-purity and high-performance boron nitride ceramics, zirconia toughened alumina (ZTA), alumina toughened zirconia (ATZ), silicon nitride, as well as other reinforced, composite, and high-performance ceramic materials.
Advanced Production Technology
The company employs advanced manufacturing technologies, including sintering, molding, grinding, CNC machining, laser drilling, precision grinding, and polishing processes.
Complete Production Equipment
Key production equipment includes sintering furnaces, isostatic presses, grinders, engraving machines, laser cutters, double-sided grinding machines, sand wire cutting devices, and injection molding machines.
Professional R&D Team
Our team consists of experienced experts dedicated to researching advanced ceramic materials. To date, the team has published over 100 academic papers, filed five Chinese invention patents, and obtained more than 20 utility model patents.
Professional Service
The product has technical support from Ph.D. experts and other experts during the research and development stage. The process is rigorous during the production process, and the after-sales service is on call 24 hours a day.
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Parameter
|
Performance |
Unit |
Yellow Zirconia |
Whit Zirconia |
Whit Zirconia |
40%ZTA |
|
Yellow Zirconia |
3Y Zirconia |
8Y Zirconia |
40%ZTA |
||
|
Density |
g/cm3 |
6.00~6.10 |
6.00~6.10 |
5.9 |
4.8 |
|
Flexural strength |
MPa |
1000 |
≥1000 |
1100 |
600 |
|
Fracture toughness |
MPa·m1/2 |
8 |
8 |
10 |
3.5 |
|
Dielectric constant |
εr(20℃,1MHz) |
10 |
10.6 |
|
|
|
Hardness |
HV |
1200 |
1200 |
1200 |
1200 |
|
Hardness |
HRC |
65 |
79 |
|
|
|
Volume resistivity |
Ω·cm(20℃) |
10 14 |
10 14 |
|
|
|
Elastic modulus |
GPa |
220 |
220 |
230 |
180 |
|
Coefficient of thermal expansion |
×10-6/k |
10.2 |
10.2 |
|
|
|
Compressive strength |
MPa |
1800 |
2500 |
|
|
|
Abrasions |
g/cm2 |
0.01 |
0.01 |
|
|
|
Thermal conductivity |
W/m×k(20℃) |
3 |
3 |
4 |
4 |
|
Poisson's ratio |
/ |
0.3 |
0.3 |
|
|
|
Insulation strength |
kv/mm |
28 |
32 |
|
|
|
Temperature |
℃ |
1500 |
1520 |
|
|
Types of Zirconia Ceramics
The zirconia ceramics produced by our company mainly include the following types:
Zirconia Ceramic Screws
Zirconia ceramic screws are high-performance non-metallic fasteners made of zirconium oxide (ZrO₂) or composite ceramic materials (such as zirconium oxide toughened alumina, ZTA), with excellent high-temperature resistance, corrosion resistance, insulation, and anti-magnetic properties.
Zirconia Ceramic Rollers
Its typical composition is high-purity zirconium oxide (ZrO₂), and yttrium as a stabilizer inhibits crystal phase change, improves material toughness and high-temperature stability.
Zirconia Ceramic Watch Ring
Crafted from high-purity zirconia (ZrO2) ceramic, this watch ring combines exceptional hardness, scratch resistance, and a luxurious matte satin finish, making it an ideal upgrade for watch enthusiasts and luxury brands.
Zirconia Ceramic Gasket
Zirconia ceramic plates are mainly made of zirconia, with a pure white appearance and a hard texture. Zirconia ceramic gasket is a high-performance special ceramic material with unique physical and chemical properties.
Advantages of Zirconia Ceramics
Mechanical Properties: Superior Toughness Beyond Traditional Materials
If you are troubled by high-load application environments, then zirconia can solve your troubles. Its bending strength can reach 1200MPa, which is 2-3 times that of ordinary engineering ceramics. More importantly, its fracture toughness is as high as 1 5MPa*m1/2, which means it will not crack easily when subjected to some strong impacts.
Chemical Stability: Excellent Corrosion Resistance
The excellent chemical stability of zirconia ceramics can help you solve this headache. It can still maintain good stability in some extremely harsh environments such as strong acids and alkalis, and its corrosion resistance far exceeds that of most metal materials. In the chemical production line, you will see that its long-lasting corrosion resistance saves you a lot of maintenance costs.
Thermal Performance: a Reliable Choice for High Temperature Environments
The melting point of zirconia ceramics is as high as 2700°C, and it has an extremely low thermal conductivity (2W/m.K). This means that it can not only maintain its shape and stable performance at high temperatures, but also effectively insulate the transfer of heat. In some occasions where thermal protection is required, these characteristics provide reliable protection for your equipment.
Biocompatibility: Safety guarantee for medical applications
For the application of medical devices, your biggest concern may be the safety of the material. Zirconia ceramics are non-toxic and show excellent biocompatibility. They will not react adversely with human tissues, so they have become the preferred material for dental implants and orthopedic prostheses.
Applications of Zirconia Ceramics
Wear-Resistant Components
Zirconia’s remarkable hardness and wear resistance make it ideal for components exposed to abrasive conditions. These properties are leveraged in the manufacturing of pump seals, valve seats, and bearings.
High-Temperature Applications
Zirconia’s high temperature resistance makes it an excellent choice for high-temperature applications. It is widely used in refractory linings, thermal barrier coatings, and insulation for furnaces and kilns.
Cutting Tools
The combination of hardness and toughness in zirconia ceramics makes them highly suitable for cutting tools, particularly for machining hard materials. Zirconia cutting tool inserts are known for their durability and precision, allowing manufacturers to achieve high-quality finishes on a variety of materials.
Dental Implants and Prosthetics
In the medical and dental fields, zirconia has largely replaced titanium as the material of choice for dental implants and crowns. Its biocompatibility, strength, and aesthetic qualities make zirconia ideal for dental applications.
Orthopedic Implants
Zirconia ceramics are also used in orthopedic implants, such as hip and knee replacements. The material’s wear resistance and biocompatibility ensure that implants made from zirconia can endure the stresses of the human body for extended periods, reducing the likelihood of complications and the need for revision surgeries.
Solid Oxide Fuel Cells (SOFCs)
In the realm of energy, zirconia ceramics are crucial components in solid oxide fuel cells (SOFCs). These cells rely on zirconia’s unique electrical properties to conduct oxygen ions at high temperatures, enabling efficient energy generation with low emissions.
Oxygen Sensors
Zirconia ceramics are integral to the functionality of oxygen sensors used in automotive and industrial applications. These sensors rely on zirconia’s ability to conduct oxygen ions at high temperatures to accurately measure oxygen levels.
Watch Components
Beyond industrial and medical applications, zirconia’s aesthetic appeal and scratch resistance have made it a popular material in the luxury goods market, particularly in watchmaking. High-end timepieces often feature zirconia ceramic cases and bezels, which offer a combination of durability and a polished, sophisticated look.
Laboratory Crucibles
In scientific research, zirconia ceramics are used to manufacture laboratory crucibles due to their chemical inertness and high-temperature stability. These properties are essential in materials research and analysis, where zirconia crucibles are used to melt, mix, or hold substances at extremely high temperatures without reacting with the contents.
Thermal Barrier Coatings in Aerospace and Defense
Zirconia ceramics are also pivotal in aerospace and defense industries, particularly in the application of thermal barrier coatings on jet engine components.
Processing Steps of Zirconia Ceramics
Preparation of Composite Powder
Preparing the composite powder involves several mixing techniques, such as mechanical mixing, multiphase suspension, sol suspension, and sol-gel methods. Each method has its own advantages and is selected to ensure thorough blending of the composite powder.
Grinding and Compacting
The blended material is combined with a stabilizer to form a ball, which is then mixed with a small amount of binder and compressed under pressures ranging from 60 MPa to 100 MPa. This compaction process ensures that the zirconia oxide powder achieves close contact with the stabilizer particles.
Sintering Process
The quality and preparation of zirconia ceramics for processing are greatly influenced by the sintering process, which involves heating the stabilized zirconia powder to temperatures exceeding 1000°C. Sintering can be carried out using various methods, with electric, high-pressure, activation, and hot press techniques being among the most common.
Machining of Sintered Zirconia Ceramics
Machining sintered zirconia ceramics is essential for preparing the material for various applications. However, machining zirconia ceramics presents challenges due to its remarkable hardness, which is comparable to steel. The bending strength and fracture toughness of zirconia ceramics can be adversely affected by heat or elevated temperatures.
Customization Process
Packaging and Shipping
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Packaging |
The package of our products usually includes bubble wrap, carton, pallet and wooden case, etc. Also it can be designed according to your demands. |
|
Shipping |
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc. |
Our Factory
Superior Ceramics Times Technology Co., Ltd. was established in 2005 and has several production plants in Taizhou, Shaoxing, etc. We also have a registered company in the United States, located at 10 ROBIN, IRVINE, CA 92604.
Our Certificates
FAQ
As one of the most professional zirconia ceramics manufacturers and suppliers, we're featured by quality products and good price. Please rest assured to buy high-grade zirconia ceramics from our factory.
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