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The difference and unique advantages of zirconia ceramics and other types of ceramics
Release time:2022-01-05 09:09:17    Author:

  Zirconia ceramic is a new type of ceramic product, which is manufactured by high-tech technology and has many characteristics. For example, it has high strength and hardness. Compared with alumina ceramics, its quality is better. Reliable, at the same time, the wear resistance of zirconia ceramics is also very good. Everyone knows that ceramic products will inevitably be worn and bumped in daily life. If the quality is not good, it may look very old, or it will be broken, but The wear resistance of zirconia ceramics will be very strong. In addition to these, zirconia ceramics have phase transformation toughening and micro-crack toughening, so they have high strength and toughness, and are known as "ceramic steel". Its fracture toughness is the highest among all ceramics. Has excellent room temperature mechanical properties. On this basis, we optimized the zirconia formula and process to obtain a zirconia ceramic with fine grain structure and high hardness, high strength and high toughness. High hardness, high strength and high toughness ensure that zirconia ceramics have incomparable wear resistance compared with other traditional structural ceramics. Ceramics with fine-grained structure can be processed with very low surface roughness (<0.1um). Therefore, the friction coefficient of the ceramic surface is reduced, thereby reducing the friction force and improving the quality of the wire drawing (the drawn wire is smooth without burrs, and the wire is not easy to break).

  Unique advantages:

  1.In the scientific field, the corrosion-resistant and high-temperature-resistant titanium products used on "Shenzhen VI" are far less resistant to corrosion than zirconia. The material is used for heat shielding of the space shuttle, and its performance in all aspects is greatly superior to that of titanium. Therefore, the outer surface of the "Shenzhou VII" spacecraft has been improved to use zirconia materials. This material is also used in the brake discs of Porsche #cars. 2. In terms of medical treatment, because of its hardness and good biocompatibility, it is superior to various metal alloys. People use zirconia to make ceramic teeth. It is non-irritating and non-allergic. It is very suitable for use in the oral cavity, avoiding any kind of metal. Allergy, irritation, corrosion and other adverse reactions in the oral cavity. 3. In life, because zirconia ceramics are non-toxic, hygienic, non-rusting, will not stain food or affect food taste, no reaction with food, taste, acid resistance, alkali resistance, wear resistance, high hardness ceramics Because of its characteristics, people have made ceramic knives. As a product of modern high technology, ceramic knives are known as "noble knives". The elegance and preciousness of zirconia ceramics can be seen.

  The difference between alumina ceramics and zirconia ceramics

  Comparison of the advantages of alumina ceramics and zirconia ceramics: Comparison of ceramic toughness: The toughness of zirconia ceramics is 4 times that of alumina ceramics. At the same time, when zirconia is dropped freely from a height of one meter, there will be some gaps. Lose.

  Density comparison: The density of zirconia ceramics is twice that of alumina ceramics, and in contrast, zirconia has better compressive properties.

  Comparison of friction coefficient: The friction coefficient of zirconia ceramics is only 1/2 of that of alumina ceramics, while the friction coefficient of alumina ceramics itself is very low. In actual use, more consideration should be given to elastic wear and hard wear. The specific material that can be worn depends on the actual use.

  Density comparison: The density of zirconia ceramic structural parts is higher than that of alumina ceramics, the density of alumina ceramics is 3.5, the density of zirconia ceramic structural parts is 6, the texture is more delicate, and the surface finish is higher after grinding , up to ▽9 or more, mirror-like, extremely smooth, and smaller friction coefficient.

  Surface finish comparison: zirconia ceramic structural parts have higher surface finish, mirror-like, extremely smooth, and less friction with the mesh, which can further improve the service life of the mesh, greatly reduce mesh consumption, and reduce the current of the paper mesh. Reduce power usage.

  In addition, the toughness of the zirconia ceramic structure is excellent, which overcomes the inherent brittleness of the ceramic itself, has higher wear resistance, greatly prolongs the service life of the product, and significantly improves the quality of paper. Zirconia ceramic structural parts are recently developed as a very important structural ceramics, second only to alumina ceramics. Because of some of its good properties (such as its fracture toughness is higher than that of alumina ceramics), zirconia ceramic structural parts have attracted more and more attention.

  Zirconia ceramics and 99 ceramics are very different. First, the materials are different. Second, the application fields are different. Third, the content and composition are different. Fourth, the hardness is different. Zirconia ceramics are superior in terms of hardness. However, both types of ceramics have their own merits.

  Zirconia ceramics have strong weather resistance, and the product will not have various adverse phenomena due to changes in time and environment; and its fire resistance is also very good, so users do not have to worry about melting, explosion and other dangers. Zirconia ceramics have the function of self-lubricating, so there is no need to rub lubricating oil during use. In addition, zirconia ceramics also have good advantages in terms of impact resistance and wear resistance, which is why it is particularly durable.