Classification Of Special Ceramics

Special ceramics, refers to ceramics with special mechanical, physical or chemical properties, also known as fine ceramics, according to its application function classification, can be broadly divided into two categories of high-strength, high-temperature and Composite structural ceramics and electrical and electronic functional ceramics. What are the common types of alumina ceramics?

Classification of special ceramics

Oxide ceramics: aluminum oxide, zirconium oxide, magnesium oxide, calcium oxide, beryllium oxide, zinc oxide, yttrium oxide, titanium dioxide, thorium dioxide, uranium trioxide, etc.

Nitride ceramics: silicon nitride, aluminum nitride, boron nitride, uranium nitride, etc.

Carbide ceramics: silicon carbide, boron carbide, uranium carbide, etc.

Boride ceramics: zirconium boride, lanthanum boride, etc.

Silicide ceramics: molybdenum disilicide, etc.

Fluoride ceramics: magnesium fluoride, calcium fluoride, lanthanum trifluoride, etc.

Sulfide ceramics: zinc sulfide, cerium sulfide, etc.

Other types of ceramics.

There are arsenide ceramics, selenide ceramics, telluride ceramics, etc.

In addition to single-phase ceramics consisting mainly of one compound, there are also composite ceramics consisting of two or more compounds.

For example, magnesia-alumina spinel ceramics made by combining alumina and magnesium oxide, silicon oxynitride silicon-aluminum ceramics made by combining silicon nitride and alumina, lanthanum calcium chromate ceramics made by combining chromium oxide, lanthanum oxide, and calcium oxide, and lanthanum zirconium titanate (PLZT) ceramics made by combining zirconium oxide, titanium oxide, lead oxide, and lanthanum oxide, etc.

In addition, there is a large category of metal ceramics generated by adding metals to ceramics, such as oxide-based metal ceramics, carbide-based metal ceramics, boride-based metal ceramics, etc., which are also important varieties on modern ceramics. In order to improve the brittleness of ceramics, metal fibers and inorganic fibers are added to the ceramic matrix, thus constituting a fiber reinforced ceramic composite, which is the youngest but most promising branch of the ceramic family. For the convenience of production, research and study, sometimes not by chemical composition, but according to the performance of ceramics, they are divided into high-strength ceramics, high-temperature ceramics, high toughness ceramics, ferroelectric ceramics, piezoelectric ceramics, electrolyte ceramics, semiconductor ceramics, dielectric ceramics, optical ceramics (i.e., transparent ceramics), magnetic porcelain, acid-resistant ceramics and bioceramics, and so on.

With the development of science and technology, one can expect modern ceramics to develop even faster and produce more and newer varieties.

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