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钽掺杂对钛酸钡导热性能影响的研究
引用本文:王培吉,周忠祥,苏燕,荣振宇,赵朋,张奉军.钽掺杂对钛酸钡导热性能影响的研究[J].物理学报,2006,55(4):1959-1964.
作者姓名:王培吉  周忠祥  苏燕  荣振宇  赵朋  张奉军
作者单位:(1)哈尔滨工业大学理学院, 哈尔滨 150001; (2)哈尔滨工业大学理学院, 哈尔滨 150001;济南大学理学院, 济南 250022; (3)济南大学理学院, 济南 250022
摘    要:利用光热检测技术测量了钛酸钡材料的导热性能,得到了不同成型压力、烧结温度以及不同 掺杂量下的钛酸钡材料的热扩散率.研究了钽掺杂对钛酸钡材料导热性能的影响,发现了钽 元素掺杂量小于1.5mol%时,钛酸钡材料的热扩散率随掺杂量的增加而增大,当钽元素掺杂 量大于1.5mol%时,热扩散率随掺杂量的增加而减少.对钛酸钡材料的导热性能做了进一步的 分析. 关键词: 光热检测 钛酸钡 导热性能 钽掺杂

关 键 词:光热检测  钛酸钡  导热性能  钽掺杂
收稿时间:8/8/2005 12:00:00 AM
修稿时间:2005-08-082005-12-16

Influence of tantalum doping on the thermal conduction of BaTiO3 materials
Wang Pei-Ji,Zhou Zhong-Xiang,Su Yan,Rong Zhen-Yu,Zhao Peng,Zhang Feng-Jun.Influence of tantalum doping on the thermal conduction of BaTiO3 materials[J].Acta Physica Sinica,2006,55(4):1959-1964.
Authors:Wang Pei-Ji  Zhou Zhong-Xiang  Su Yan  Rong Zhen-Yu  Zhao Peng  Zhang Feng-Jun
Institution:1. School of Science, Harbin Institute of Technology, Harbin 150001, China; 2.School of Science, Jinan University, Jinan 250022, China
Abstract:The thermal diffusivities of BaTiO3 materials are measured by phototh ermal technique at different pressures, sintering temperatures and tantalum dopi ng quantities. The effect of tantalum doping on thermal conduction of BaTiO3 materials is studied in this paper. When tantalum doping quantity is l ess than 1.5mol%, the diffusivity of BaTiO3 increase with the incre ase of the tantalum doping. When tantalum doping quantity is greater than 1.5mol %, the diffusivity of BaTiO3 decreases with the increase of the tan talum doping. The experimental results of doped BaTiO3 materials are analyzed and discussed.
Keywords:photothermal detecting  BaTiO3 material  thermal conduction performan ce  tantalum doped
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