首页> 外文期刊>Nanotechnology >Nanostructured ceramics of 0.92PbZn(1/3)Nb(2/3)O(3)-0.08PbTiO(3) processed by SPS of nanocrystalline powders obtained by mechanosynthesis
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Nanostructured ceramics of 0.92PbZn(1/3)Nb(2/3)O(3)-0.08PbTiO(3) processed by SPS of nanocrystalline powders obtained by mechanosynthesis

机译:机械合成获得的纳米晶粉末的SPS处理的0.92PbZn(1/3)Nb(2/3)O(3)-0.08PbTiO(3)纳米结构陶瓷

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摘要

This work reports the successful use of a combination of non-conventional methods of synthesis (mechanosynthesis) and sintering (spark plasma sintering, SPS) for the preparation of nanostructured 0.92PbZn(1/3)Nb(2/3)O(3)-0.08PbTiO(3) (PZN-PT) ceramics. With this approach we achieve not only the stabilization of the PZN-PT perovskite phase in ceramics when sintering is carried out at temperatures between 823 and 873 K, but also good control of the grain growth, necessary to produce nanostructured materials with grain sizes of 15-20 nm. This reduction of the size results in relaxor-type electric behaviour.
机译:这项工作报告成功地使用非常规合成方法(机械合成)和烧结(火花等离子体烧结,SPS)相结合的方法来制备纳米结构的0.92PbZn(1/3)Nb(2/3)O(3) -0.08PbTiO(3)(PZN-PT)陶瓷。通过这种方法,我们不仅可以在823至873 K的温度下进行烧结时,稳定陶瓷中PZN-PT钙钛矿相的稳定性,而且还可以很好地控制晶粒的生长,这对于生产晶粒尺寸为15的纳米结构材料是必不可少的-20 nm。尺寸的减小导致松弛型电行为。

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