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利用原子力显微镜低频声学模式观察氧化锌压敏电阻
  • ISSN号：1000-324X
  • 期刊名称：《无机材料学报》
  • 时间：0
  • 分类：TG115[金属学及工艺—物理冶金;金属学及工艺—金属学]
  • 作者机构：[1]中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海200050, [2]中国科学院研究生院,北京100049
  • 相关基金：National High-Technology Research ＆ Development Program of China （2007AAO3Z330） ; National Key Development Program for Basic Research of China （2009CB623305） ; Foundation for Innovative Research Groups of the National Natural Science Foundation of China （50821004） ; National Science Foundation of China （ 10774113 ;10876041 ） ; Nanotechnology Project of Shanghai Science and Technology Committee （0852nm06900）
作者： 赵坤宇[1,2], 曾华荣[1], 宋红章[1,2], 程丽红[1,2], 曾江涛[1], 蔡闻捷[1], 惠森兴[1], 李国荣[1], 殷庆瑞[1]
关键词： 扫描探针显微术, 声成像, 微区弹性, 氧化锌, 晶界, scanning probe microscopy, acoustic, local elasticity, ZnO varistor, grain boundary
中文摘要：

介绍在商用原子力显微镜上建立的低频声学成像模式，并利用其对氧化锌压敏电阻陶瓷晶界处进行了弹性性能成像.声学像中晶界处微晶的衬度反映了添加物的分布.而晶界处的衬度增强现象可能说明样品经热处理后发生富铋相的相变.结果显示低频声成像的分辨率达到了纳米量级，在功能材料的微区力学性能表征方面具有良好的应用前景.

英文摘要：

Low-frequency acoustic mode atomic force microscopy was successfully developed based on the commercial AFM.The experimental results on nanometer scale elastic response at the grain boundaries in ZnO varistors assessed by the technique were presented.Different acoustic contrast of the individual micro-grains at grain boundaries were examined which reflected the distribution of additives.The acoustic contrasts enhanced at the grain boundaries can be observed clearly,which present possibility of crystal lattice expanding of Bi-rich phase caused by phase transition in the heat treatment.The lateral resolution of acoustic image is down to nanometer scale.The results show the application perspective of low-frequency scanning probe acoustic microscopy in functional materials at submicro- or nanometer scale.

同期刊论文项目
高性能无机复合能量转换材料的研究
期刊论文 126
高分辨率的扫描探针声显微镜
期刊论文 25 会议论文 18 著作 1
高耐电性氧化锌陶瓷的微观机理和材料设计研究
期刊论文 17 会议论文 1
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期刊信息
  • 《无机材料学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院上海硅酸盐所
  • 主编：郭景坤
  • 地址：上海市定西路1295号
  • 邮编：200050
  • 邮箱：wjclxb@mail.sic.ac.cn
  • 电话：021-52411302
  • 国际标准刊号：ISSN：1000-324X
  • 国内统一刊号：ISSN：31-1363/TQ
  • 邮发代号:4-504
  • 获奖情况:
  • 获"中国百种杰出学术期刊"称号
  • 国内外数据库收录:
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  • 被引量:21274