high purity aluminum oxide is widely used in the manufacturing of a wide variety of products. It has a high melting point, corrosion resistance and thermal stability that makes it an ideal material for use in semiconductors, light-emitting diodes (LEDs), smart electronic devices, lithium-ion batteries, artificial sapphire substrates, ceramics and photovoltaic cells.
Alumina can be produced by several oxidation methods including hydrolysis, acid leaching, underwater spark discharge with aluminum and vapor-phase oxidation. It has a high refractoriness, which makes it useful for producing abrasives and other products.
It is also a useful material for the production of high-temperature electrical and voltage insulators, instrumentation parts for thermal test machines, seal rings, gas laser tubes and laboratory equipment. It can withstand corrosion by both alkali and acid substances and can be re-hardened when subjected to elevated temperatures.
Aluminum oxide is one of the most common refractory materials used in the ceramic industry. It possesses good dielectric properties and is strong and stiff. It is used for the manufacture of a variety of ceramic products, including electrical and voltage insulators, refractory plates, ballistic armor, seal rings and heat sinks.
It is non-toxic and recyclable, making it an excellent material choice for marine and offshore applications. It is resistant to salt sprays and corrosives and provides formability, strength-to-weight ratio and flexibility. It is also an ideal choice for coating metal components that are exposed to harsh environmental conditions, such as sodium chloride or sulfur dioxide. It can withstand temperatures up to 400 degC, making it a drop-in replacement for toxic cadmium and a highly durable alternative to nickel platings.