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国产X射线衍射仪变温样品室的温度校正

Temperature Calibration of Temperature Camera on Domestic X-ray Diffractometer

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【Author】 Lu Dayong1,2,3,4,Liu Qiaoli1,Dong Yaolong1,2,Huang Hao1,3,Han Dandan1,4,Zhang Li1,4(1Research Center for Materials Science and Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China;2College of Physics,Jilin University,Changchun 130021,China;3College of Chemistry,Jilin University,Changchun 130021,China;4College of Chemistry,Northeast Normal University,Changchun 130024,China)

【机构】吉林化工学院材料科学与工程研究中心；吉林大学物理学院；吉林大学化学学院；东北师范大学化学学院；

【摘要】借助介电温谱、拉曼光谱、电子顺磁共振和差示扫描量热分析四项技术综合评价BaTiO3陶瓷的四方-立方相变点,即居里温度(Tc)。当采用国产X射线衍射仪变温样品室对BaTiO3陶瓷体进行变温XRD测量时,以BaTiO3陶瓷的Tc为依据,检测到变温样品室热电偶的监测温度与陶瓷体表面实际温度存在30℃的偏差,可对实际的陶瓷体表面温度进行校正。更多还原

【Abstract】 The tetragonal-cubic phase transition point,i.e.the Curie temperature TCof BaTiO3ceramic,was determined synthetically by dielectric-temperature characteristics,Raman spectra,electron paramagnetic resonance,and differential scanning calorimetry techniques.When the temperature camera on the domestic X-ray diffractometer was adopted to measure bulk X-ray diffraction(XRD) of BaTiO3 ceramic,it was determined that the difference between the temperature detected by the thermal couple on the temperature camera and the surface temperature of ceramic bulk was 30 °C,and the real surface temperature of ceramic bulk was calibrated against TCof BaTiO3ceramic.更多还原

【关键词】 X射线衍射仪；变温样品室；钛酸钡陶瓷；居里温度；介电性质；拉曼光谱；电子顺磁共振；差示扫描量热；
【Key words】 X-ray diffractometer； Temperature camera； Barium titanate ceramic； The Curie temperature； Dielectric properties； Laman spectra； Electron paramagnetic resonance； Differential scanning calorimetry；

【基金】吉林省科技发展计划项目(20100532);国际科技合作项目(20110710);吉林省教育厅“双百优秀人才”项目

【文献出处】现代科学仪器 ,Modern Scientific Instruments , 编辑部邮箱 ,2012年02期

【分类号】TG115.225
【被引频次】11
【下载频次】206

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