Influence of temperature on structural-phase changes and physical properties of ceramics on the basis of aluminum oxide and silicon
Keyword(s):
X Ray
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Abstract The purpose of this experiment was to prepare high-voltage porcelain ceramics as local raw materials. Density, water absorption, and volume shrinkage were determined according to the State standard (GOST 7025-91). A structural analysis was carried out using a scanning electron microscope, and an X-ray phase analysis was carried out on an Xpert PRO diffractometer. It was found, that in the initial state, ceramics consist of hexagonal (SiO2) and a small amount of monoclinic phase. Above a temperature of 1150 °С they consist of hexagonal (SiO2), an orthorhombic lattice, and also contain mullite (Al2Si2O13).
2011 ◽
Vol 399-401
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pp. 788-791
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2011 ◽
Vol 117-119
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pp. 769-772
2011 ◽
Vol 236-238
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pp. 1712-1716
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