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Application of Alumina Ceramic in Electronic Industry
Alumina ceramic is a ceramic material which mainly contains aluminum oxide. It is applied to thick-film integrated circuits for its excellent performance of thermal conductivity, mechanical strength and high-temperature resistance.
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Application of Alumina Ceramic in Multi-chip Package:
Alumina ceramic multi-layered substrate is used for multi-chip packages. Its manufacture methods include thick film printing method, ceramic green body laminating method, ceramic green body printing method and thick-film hybrid method.
Thermal conductivity coefficient of commonly used thermal conductive gaskets is below 2.0W/(m*K). For high thermal conductive Bergquist Sil-Pad 2000 series, the thermal conductivity is only 3.5W/(m*K), while thermal conductivity of alumina ceramic is as high as 29.3W/(m*K), also it is an ideal material to substitute silicone sheets, silicon dioxide films, flexible silicone pads, insulation particles and mica sheets.
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Application of Alumina Ceramic in High-Pressure Sodium Lamp (HPS lamp) Arc Tube:
Translucent alumina ceramic is made of poly-crystalline opaque alumina ceramic material with high purity (VK-L100G, 99.999%). It is applied in HPS lamp and the luminous efficiency is twice as that of mercury lamp.
High purity translucent alumina ceramic manifests good performance of high-temperature resistance, corrosion resistance, high insulation, high strength and low dielectric loss. As an excellent optical ceramic, it can also be used for the viewing window of microwave oven.
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Application of Alumina Ceramic in Nano sensors:
The grain boundaries, pores and other structures of nanosized alumina ceramic particles with high purity (VK-L100G) are sensitive to environment with high temperature and corrosive gas, so it is used as sensitive parts of sensors, which can provide accurate and rapid detection and control information.
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