Advantages Of Alumina Ceramics
Advantages of alumina ceramics
(1) High mechanical strength, the flexural strength of alumina ceramics sintered products can reach 250MPa, hot pressing products can reach 500MPa, the strength can be maintained to 900℃ at high temperature
(2) the high resistivity, good electrical insulating performance, room temperature resistivity Ω 1015 cm, dielectric strength 15 kv/mm
(3) high hardness, Mohs hardness is 9
(4) high melting point, corrosion resistance, melting point 2050℃, can Be better resistance to Be, Sr, Ni, Al, V, Ta, Mn, Fe, Co and other molten metal erosion.It also has high resistance to NaOH, glass and slag.It does not interact with Si, P, Sb, Bi in inert atmosphere.
(5) excellent chemical stability, many complex sulfide, phosphide, arsenide, chloride, nitride, bromide, iodide, oxide and sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid do not interact with alumina.
(6) optical properties, can be made into transparent materials (transparent Al2O3 porcelain)
(7) Ion conductivity
