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Address: No. 2, Qingyuan South Road,Langli Industrial Park, Changsha County,Hunan Province
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Product Description
ZTA ceramics are zirconia-toughened alumina ceramics, with zirconia toughened with alumina as the matrix. Zirconia toughened alumina ceramics (ZTA) are products made of zirconia ceramics and alumina ceramics. Zirconia is an oxide of zircon and is often added to other materials due to its durability. Typically, the proportion of zirconia in zirconia toughened alumina is about one-tenth or one-fifth. However, this ratio can be adjusted to suit the requirements of the product.
ZTA ceramics are the perfect balance between cost and value. ZTA products are stronger than ordinary alumina products. They are also less expensive than pure zirconia ceramics. Therefore, the use of zirconia-toughened alumina products can make a perfect solution of "having both the fish and the bear's paw" between the cost of the product and the performance of the product.
Technical parameters
| Items | Specifications |
| Al2O3 | ≥75% |
| Zirconia | ≥21% |
| Density | 4.2 g/cm3 |
| Compressive Strength | ≥ 1400 Mpa |
| Rockwell Hardness | ≥ 90 HRA |
| Vickers Hardness | ≥ 1350 HV10 |
| Fracture Toughness (KIC) | ≥ 5.5 Mpa.m1/2 |
| Bending Strength | ≥ 350 Mpa |
| Wear Volume | ≤ 0.009 cm3 |
| Tensile Strength (TSB) | ≥ 15 Mpa |
| Rubber | Natural |
| Natural | ≥450 |
| Elongation | 450% |
Product Specifications
| Product Size | 150*300 200*300 300*300 500*500 450*300 530*450 |
| Ceramic size | 10*10mm~150*100mm |
| Rubber size | 2mm-15mm |
| Steel plate size | 3mm-10mm |
| product structure | Steel plate + rubber + ceramic three-in-one liner Rubber + ceramic two-in-one liner |
Properties of Zirconia Toughened Alumina Ceramics (ZTA)
The most notable property of zirconia-toughened alumina ceramics (ZTA) is its high mechanical strength. The high mechanical strength of zirconia-toughened alumina (ZTA) is achieved through a process known as stress-induced phase transformation toughening. At room temperature, the density of zirconia-toughened alumina (ZTA) is about 4.3 g/cm 3.
It has high heat resistance, making it suitable for high-speed grinding equipment. Zirconia-toughened alumina (ZTA) has a maximum working temperature of 1923 K and a thermal expansion coefficient of 8.1×10 -6 C -1. Additionally, zirconia-toughened alumina (ZTA) has a Poisson's ratio of 0.26, a flexural strength of 130 ksi, and an elasticity of approximately 47×10 6 psi.
What are the advantages of using zirconia-toughened alumina ceramics (ZTA)?
The advantages of Zirconia Toughened Alumina Ceramics (ZTA) lie in their applications in various industries. First, zirconia-toughened alumina ceramics (ZTA) can withstand temperatures up to 1773 K. This makes it ideal for making devices that withstand high temperatures. In addition, zirconia-toughened alumina ceramics (ZTA) have higher corrosion resistance than standard alumina. This makes it very durable.
What is ZTA Ceramics?
ZTA ceramic is a composite ceramic with excellent chemical stability, thermal stability, and high strength, but its application is limited due to its low reliability and high production cost.
The bending resistance and fracture toughness of ZTA ceramics are related to the particle size of the alumina powder, and the sinterability increases with the reduction of the alumina particles used. Experiments have shown that ZTA produced by mechanical grinding of submicron-sized alumina has good mechanical properties when sintered at 1500 ° C, its flexural strength reaches 720Mpa, and its fracture toughness reaches 6.86MPa m1/2, which is better than that of ZTA. Aluminum oxide composite ZTA ceramics are prepared by chemical method. However, it is not that the finer the particles, the better the mechanical properties of ZTA, which is also related to the sintering temperature. Under the same temperature sintering conditions, too large alumina grains will also inhibit the phase transformation of zirconia and affect the performance of the final ZTA ceramics.
Applications of Zirconia Toughened Alumina Ceramics (ZTA)
ZTA ceramic lining plate: ZTA ceramics made of zirconium-aluminum composite are vulcanized on the steel plate, and the high toughness and high wear resistance of ceramics are used as anti-wear lining plates for equipment with large material, high drop, and strong impact.
ZTA zirconium-aluminum composite ceramic liner is mainly used as anti-wear lining on equipment with large feeding volumes, large material, and high impact force under normal temperature environments.
Valve Seals: When selecting a valve seal, it is important to ensure that the materials used are durable. It is also important that the material is resistant to temperature, corrosion, and corrosion. Zirconia-toughened alumina ceramics (ZTA) meet these criteria and are commonly used as valve seals.
Joint Replacement: One of the properties of zirconia-toughened alumina (ZTA) is its biocompatibility. Furthermore, this composite material is known to be tough and has high flexural strength. This makes zirconia-toughened alumina (ZTA) an acceptable material for use in joint replacements. Its biocompatibility will ensure it will not cause harm to the body, while its toughness will ensure it can carry the weight of the body. It is commonly used in hip replacement surgery.
Cutting tools: Zirconia-toughened alumina (ZTA) is hard, wear-resistant, thermally stable, and friction-resistant. These properties make it an excellent material for cutting tools. Additionally, they are less expensive than other materials used to make cutting tools, such as diamonds.
