期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 509, 期 22, 页码 6395-6399出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2011.03.009
关键词
Ceramics; Solid state reaction; Sintering; Microstructure
资金
- Romanian Ministry of Education and Research
SrZrO3 powders are obtained by solid state reaction from SrCO3 and ZrO2 precursors, without involving intermediate calcination and grinding steps. The resulted powders are essentially within a single phase, with sub-micron average crystallite size. Pellets of these powders show a relatively poor sintering behavior, when fired up to 1600 degrees C. Alternatively, spark plasma sintering technique is used in order to obtain nearly 100% dense samples at the expense of excessive grain coarsening (i.e., up to 5 mu m in diameter). Crystalline structure, composition and morphology of the specimens obtained in this work are investigated by X-ray diffraction, scanning and transmission electron microscopy together with energy dispersive X-ray spectroscopy. (C) 2011 Elsevier B.V. All rights reserved.
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