期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 86, 期 1, 页码 12-18出版社
AMER CERAMIC SOC
DOI: 10.1111/j.1151-2916.2003.tb03270.x
关键词
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Commercial corundum powder and a liquid-shaping approach are used for manufacturing complex hollow components and large flat windows of sintered and hot isostatically pressed Al2O3 ceramics having grain sizes of 0.4-0.6 mum at relative densities of >99.9%. High macrohardness (HV10 = 20-21 GPa) and four-point bending strength (600-700 MPa; 750900 MPa in three-point bending) are associated with a real in-line transmission of 55%-65% through polished plates. The submicrometer microstructure and the optical properties can be retained for use at >1100degreesC using dopants that shift the sintering temperature to high values Without additional grain growth.
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