Phase transformation of ZrO2 nanocrystals induced by Li+

被引：11

作者：

Liu, Lu ^{[1
]}

Li, Chunlei ^{[2
]}

Chen, Yujin ^{[1
]}

Zhang, Xinlu ^{[1
]}

Li, Li ^{[1
]}

Wang, Yuxiao ^{[3
]}

机构：

[1] Harbin Engn Univ, Sch Sci, Harbin 150001, Peoples R China

[2] NE Forestry Univ, Dept Phys, Harbin 150040, Peoples R China

[3] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 79卷

关键词：

Nanoparticles; Crystal structure; Phase transformation; ZrO2; Li+; DECREASING GRAIN-SIZE; TETRAGONAL ZIRCONIA; LUMINESCENCE; SOLUBILITY; INCREASE; GROWTH; ZNO;

D O I：

10.1016/j.matlet.2012.03.112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is well known that monoclinic ZrO2 nanocrystals can be synthesized at similar to 1000 degrees C by sol-gel method. In this letter, we demonstrate a novel method to synthesize monoclinic ZrO2 nanocrystal through sol-gel technique under relatively lower calcined temperature. It is found that composition of monoclinic ZrO2 can be significantly enhanced by doping Li+, and pure monoclinic phase ZrO2 nanocrystals appear at 900 degrees C. 800 degrees C and 700 degrees C for samples doped with 0.5, 2, and 5 mol% Li+, respectively. This phase transformation of ZrO2 is dependent on the crystallite size and there is a range of around 11-35 nm of crystallite size in which tetragonal and monoclinic ZrO2 coexist. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

引用

页码：75 / 77

页数：3

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