期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 27, 期 16, 页码 4711-4717出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2007.04.006
关键词
sintering; grain size; nanocomposites; optical properties; hardness; Y2O3
Commercially available nanophase yttria powder was used to fabricate a transparent ceramic and its optical transmittance and hardness were measured. The nanophase yttria powder was dry-pressed without the use of any binders. Subsequently, the green body was sintered in air, hot-isostatically pressed, and polished, resulting in an IR-transparent ceramic. Scanning electron microscopy revealed a grain size of 21.5 +/- 11.1 mu m. Optical transmittance reached about 60% at 1 mu m, and hardness measurements showed 792 HK100g, 704 HK500g, and 767 HV100g. (C) 2007 Elsevier Ltd. All rights reserved.
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