Information of 99 Alumina Ceramics

Product name:99 Alumina ceramics
Product Grade:99 Alumina
Content:99（％）

Alumina ceramics is used to produce high-temperature crucibles, resistant stove pipe and special wear-resistant materials,such as ceramic bearings, ceramic seals and valve films,etc.Alumina ceramics is used as a corrosion-resistant, wear-resistant parts.

A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous (e.g., a glass). Because most common ceramics are crystalline, the definition of ceramic is often restricted to inorganic crystalline materials, as opposed to the noncrystalline glasses.
The earliest ceramics were pottery[citation needed] objects or 27,000 year old figurines made from clay, either by itself or mixed with other materials, hardened in fire. Later ceramics were glazed and fired to create a colored, smooth surface. Ceramics now include domestic, industrial and building products and art objects. In the 20th century, new ceramic materials were developed for use in advanced ceramic engineering; for example, in semiconductors.

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