This is a heterogeneous, composite material made of metals or alloys and one or many ceramic phases.
Ceramic phase of cermets usually contains high melting point oxides (Al2O3,ZrO3, BeO3, MgO etc.). ), nitrides (TiN, BN, Si3N4, etc. ), carbides (TiC, WC, etc. ), borides (TiB2, ZrB2, etc.) The main components of the metal phase are Ti, Cr. Ni, Co., Fe and any other metals. They can also be used in combination and include bronze alloys or high-temperature alloys.
Cermets are classified according to their type: cermets may be either oxide-based or carbidebased, carbonitride based, carbonitride based, boride based, graphite containing, diamond-containing carbide based.
Ceramic Powder Properties
Ceramic powder can be used as a high temperature material, alternating with ceramic materials or high-temperature alloys.
Ceramic powder resists high temperatures. The strength of ceramic powder can be sustained up to 1200degC. Ceramic powder will not melt or decompose after heating. It’s resistant to chemicals and can also be used as an electrical insulation.
Cermets are a broad area of development in the aerospace industry. They have to meet tough technical and environmental demands such as wear resistance, high strength and stability, high temperature resistance, high strength and durability. It is able to be used for manufacturing valves, stationary rings and other components in the aerospace industry.
2. Industries and Processing
Ceramic powder’s irreplaceable qualities include high hardness, wear resistance, excellent toughness, great toughness and many other properties. This is especially true for measuring and cutting tools.
Other fields are well served by ceramic powders that have good resistance to high temperatures and resistance to corrosion. These include high-temperature crucibles in the metallurgical and machinery industries, as well as wear resistant and high temperature resistant parts in the machine industry and thermonionic cathodes for electronics.
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