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Structural Ceramics Production Method

Hangzhou JWG Technology Co.Ltd | Updated: Jun 20, 2017

Zirconia ceramic structural parts of high melting point, high resistivity, high refractive index, low coefficient of thermal expansion, Structural Ceramics it has become a remarkable product in our lives. But many people do not know the zirconia structural parts of the production methods, in fact, Structural Ceramics this is also very important.

Dipping method: the first viscose silk or the whole fabric for a long time immersed in zirconium hydroxide solution, the viscose fiber swelling, and then by pyrolysis, calcination to get a certain tensile strength of zirconia fiber.

Oxidation of zirconium oxychloride: zircon and caustic soda at 650 ℃ melting, Structural Ceramics hot water leaching melt, silicon was sodium silicate form and sodium zirconate separation. And then treated with sulfuric acid, zirconium sulfate solution, and further impurities in addition to ammonia, precipitation of zirconium hydroxide.

Sol-gel method: adding alcohol and water to the zirconium alcohol, adding the catalyst, and after the mixture is fully mixed, it is decomposed and put into gelatinized and viscous liquid. The proper viscosity is chosen, dried and then heated to 500 to 1000C The temperature of the fiber is fired into the product.

Hydrolysis: Preparation of high purity ultrafine zirconia from zirconia structural material as raw material, 0.2 to 0.3 mol / L of high purity zirconium oxychloride solution and deionized water were hydrolyzed and the zirconium oxychloride solution was boiled for a long time Hydrolysis of hydrogen chloride generated by evaporation, the hydrolysis reaction in boiling for 50h or more, and then filtered, washed with deionized water, dried, Structural Ceramics calcined crushed to obtain the product.

High temperature hydrolysis method: 1mol / L high purity solution into the temperature of 1000 ℃ in the decomposition furnace, the tiny zirconia ceramic structure droplets first water evaporation, and then hydrolysis to produce zirconium dioxide. The decomposed zirconia is collected by the cyclone separator, Structural Ceramics and then the acid is washed, washed and dried to obtain the product.

Zirconia structural parts of the raw material production method is the alkoxide hydrolysis method, the law can be obtained particle size and shape uniform, single phase structure of ZrO2. Master the knowledge, you will be in the production of raw materials will be simple, and can indirectly improve the quality of the product.

Alumina on the earth's reserves behind the silicon oxide, Structural Ceramics making the alumina ceramic low price and the most applications. In the 1930s, Germany's Siemens first developed alumina as a Martian plug insulator for automobiles, opening the use of commercial alumina materials. After decades, with the rapid development of transportation and electronics industry, the industry a large number of R & D and production engine with the spark plugs and semiconductor IC with insulating ceramics.

Today, alumina has been widely used in personal computer substrate, electronic components, circuits, etc., in addition to because the production cost is low, easy to obtain, Structural Ceramics with sufficient mechanical strength, good thermal conductivity and chemical stability, Tungsten, molybdenum and manganese and other metal wire materials to form a stable link, so become the electronics industry is very important material.


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