Alumina is the most popular advanced ceramic material. Wear resistance, corrosion resistance, strength, and cost-efficiency are its chief characteristics. Its high dielectric strength and electrical resistance are also prominent properties of the material. Alumina can also be metallized and/or enhanced through various manufacturing methods.
ALUMINUM NITRIDE
Aluminum nitride is used for its hardness, high thermal conductivity, resistance to high temperatures, and high dielectric strength. Some other key characteristics include good corrosion resistance and stability in semiconductor processing atmospheres.
SILICON NITRIDE Silicon nitride is recognized for its thermal shock resistance. It is low in density and thermal expansion, high in strength and corrosion/fracture resistance.
SILICON CARBIDE Silicon carbide is recognized for its corrosion resistance. It is high in wear and thermal shock resistance. It can also withstand temperatures up to 1400°. Some other key characteristics include low density, high strength, low thermal expansion, high thermal conductivity, and electrical conductivity.
ZIRCONIOM OXIDE
Zirconia is most popular for its superior strength and durability at room temperature. Zirconia ceramics can have extremely smooth surfaces and sharp edges. Some other key characteristics include high temperature capability (up to 2400°C), high density, high strength and hardness, wear resistance, and low thermal conductivity.