期刊
SCRIPTA MATERIALIA
卷 58, 期 12, 页码 1114-1117出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2008.02.008
关键词
powder consolidation; spark plasma sintering; ceramics; optical transmission; spinel
Transparent spinel can be fabricated without any sintering aids by spark plasma sintering (SPS) processing for only a 20 min soak at 1300 degrees C. For heating rates <10 degrees C min(-1), the spinel exhibits an in-line transmission of 47% for a visible-wavelength of 550 nm and a fracture strength of similar to 500 MPa. By means of low heating rate SPS processing, high transmission and strength can be attained mainly by reducing the residual pores to <0.5%. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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