Ceramics & Glass-Ruijin Technology

Address: Industrial Zone, Ruyang County, Luoyang City, Henan Province

Ceramics & Glass

Mar 14,2025

Ⅰ、Key applications of indium oxide (In₂O₃)

　　‌1、Ceramic field

　　‌● Transparent and high-temperature ceramic manufacturing

　　As the main component material, Indium oxide is used to prepare transparent ceramics (such as optical windows) and high-temperature ceramics (such as the lining of corrosion-resistant reactors). Its wide bandgap property (3.6-4.0 eV) ensures high-temperature stability and optical performance.

　　‌● Electronic ceramic substrate

　　In piezoelectric ceramics and dielectric materials, indium oxide optimizes the electrical properties by regulating the lattice structure, and it is suitable for the substrates of high-frequency electronic devices.

　　‌2、Glass industry

　　‌● Special optical glass

　　Indium oxide is used in the manufacture of optical components such as prisms and lenses. It can improve the performance of the optical system because of Its high light transmittance (more than 80% in the visible light band) and low dispersion characteristics.

　　‌● Tinted glass stains

　　‌By ion doping of indium oxide (such as doping with transition metals), stable glass products with reddish-brown or yellow hues can be achieved, which are applied to decorative and functional glass.

Ⅱ、Key applications of tin oxide (SnO₂)

　　‌1、Ceramic field

　　‌● High-performance structural ceramics

　　Tin oxide ceramics (with a SnO₂ content of 96%-98%) are widely used in high-temperature equipment components such as crucibles and high-temperature electrodes due to their high thermal conductivity, low coefficient of thermal expansion, and high temperature resistance (<1500°C).

　　‌● Corrosion-resistant ceramic coating

　　The tin oxide coating has a strong resistance to the erosion of molten glass. It is used as the lining of glass furnaces and the protective layer of chemical equipment, and its lifetime is 1 to 2 times longer than that traditional materials.

　　‌2、Glass industry

　　‌● High-temperature equipment components

　　Tin oxide ceramics are made into components such as thermocouple protective sleeves and molten glass conveying pipelines, and they can maintain structural stability in a high-temperature oxygen atmosphere.

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