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About Aluminum Oxide and Alumina Ceramics
Aluminum oxide and alumina ceramics have excellent wear characteristics, chemical resistance, compressive strength, high-temperature properties, and dielectric strength. Alumina or aluminum oxide is a compound of aluminum metal and oxygen used in the alpha alumina structural form. In its pure form, alumina is a white, high-hardness ceramic. Fully-dense alumina can be translucent. Aluminum oxide and alumina ceramics are used widely because of their high electrical insulation, high mechanical strength, high wear resistance, and good chemical resistance. Alumina’s main drawback, however, is its relatively poor thermal-shock resistance due its higher coefficients of thermal expansion and lower thermal conductivity compared to other pure ceramic materials.
Engineering Web: Aluminum Oxide and Alumina Ceramics - Machine Design
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Advanced ceramics | Machine Design Advanced ceramics are differentiated from traditional ceramics such as brick and porcelain by their higher strength, higher operating temperatures, |
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Micromini ceramics sport supersized properties | Machine... Aluminum oxide or alumina (Al2O3) is the most widely used and cost-effective engineered ceramic. Micromini ceramics sport supersized properties |
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More metal parts go to composites | Machine Design Vespel CP-9800 has a density of 1.7 gm/cm3 compared to 2.7 and 4.0 gm/cm3 for aluminum and alumina (Al2O3) ceramic, respectively. |
