期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 33, 期 6, 页码 1045-1066出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2012.12.004
关键词
Sintering; Bulk nanocrystalline ceramics; Spark plasma sintering; Grain boundaries
资金
- Fondazione Cariplo [2010-0435]
The synthesis and functional characterization of dense bulk nanometric coddes are reviewed, with particular emphasis on the modifications that a grain size in the low nanometric range (10-50 nm) introduces in their physical properties. The preparation of ceramics with low porosity and extremely small grain size is particularly challenging and mostly relies on the sintering of extremely fine nanopowder. The most popular methods for the preparation of the starting nanopowders are introduced and briefly discussed as well as the most widely employed densification techniques. The role of nanostructure in controlling phase stability, electrical and thermal transport, optical and magnetic properties of nano-oxides is discussed in details. Several examples are given where bulk materials prepared with grain size equal or below 50 nm show characteristics that are either enhanced or, in some cases, completely different from those possessed by the same materials, but with larger grain sizes. (C) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据