期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 8, 期 6, 页码 5984-5995出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2019.09.073
关键词
Porous silicon nitride ceramics; Microwave sintering technology; Agglomeration process; Law of influence
资金
- Natural Science Foundation of Hunan Province [:2017JJ5056]
In this paper, the preparation methods of porous silicon nitride materials with controllable dielectric constant and pore structure were systematically studied. By using microwave sintering technology, porous silicon nitride materials with high closed pore ratio were prepared by adjusting the content of sintering additives and sintering process parameters, and controlling the grain boundary phase and pore structure and size. The effects of sintering conditions on the total porosity, closed porosity, pore structure and dielectric properties of materials were systematically studied. (C) 2019 The Authors. Published by Elsevier B.V.
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