| 引用本文: | 张翠萍,Xavier Chaud,Eric Beaugnon,曹海涛,周廉.高温原位测试材料相变的新方法:高温法拉第磁秤[J].材料科学与工艺,2011,19(2):23-27.DOI:10.11951/j.issn.1005-0299.20110206. |
| ZHANG Cui-ping,X Chaud,E Beaugnon,CAO Hai-tao,ZHOU Lian.A new approach for in-situ studying the phase transition of paramagnetic materials:high-temperature Faraday Balance[J].Materials Science and Technology,2011,19(2):23-27.DOI:10.11951/j.issn.1005-0299.20110206. |
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| 高温原位测试材料相变的新方法:高温法拉第磁秤 |
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张翠萍1,2,3, Xavier Chaud4, Eric Beaugnon3,4, 曹海涛1, 周廉1,2
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1.西北工业大学凝固技术国家实验室;2.西北有色金属研究院;3.Université Joseph Fourier;4.CRETA/CNRS,Grenoble 38042,France
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| 摘要: |
| 高温原位磁化率测试法利用顺磁性材料在相变时磁化率变化的原理,直接测试出材料相变时的转变温区,是研究顺磁性材料相变的一种新的尝试.我们采用高温法拉第磁秤测试了Ag2O和CuO在升温和降温中磁化率的变化曲线,通过磁化率的转变演示了Ag2O和CuO相变的动态过程.以此介绍了原位观测顺磁性材料晶体学相变的高温法拉第磁秤方法.高温法拉第磁秤在相变研究上的应用为顺磁性材料制备工艺提供了真实可靠的实验参数. |
| 关键词: 高温法拉第磁秤 晶体学相变 磁化率 Ag2O CuO |
| DOI：10.11951/j.issn.1005-0299.20110206 |
| 分类号:TB302.1 |
| 基金项目:自然科学基金项目(50432050) |
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| A new approach for in-situ studying the phase transition of paramagnetic materials:high-temperature Faraday Balance |
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ZHANG Cui-ping1,2,3, X Chaud4, E Beaugnon3,4, CAO Hai-tao1, ZHOU Lian1,2
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1.State Key Laboratory of Solidification Processing,Northwest Polytechnical University,Xi’an 710072,China;2.Northwest Institute for Non-ferrous Metal Research,Xi’an 710016,China;3.Universit Joseph Fourier,Grenoble 38000,France;4.CRETA/CNRS,Grenoble 38042,France
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| Abstract: |
| Based on the principle of the susceptibility transformation in the phase transition of paramagnetic material,the high-temperature Faraday Balance can observe the dynamic process in the phase transition of material.We utilize it measuring the susceptibility variation of Ag2O and CuO at high temperature.It reveals the dynamic decomposing process in the melting of Ag2O and the solidification of Ag,as well as the decomposition and halfway synthesis reaction of CuO.By the two examples,we introduce this new approach for studying the phase transition of paramagnetic materials-high-temperature Faraday Balance.This method provides a reliable experimental data for the materials’ fabricating process. |
| Key words: high-temperature Faraday Balance crystallization phase transition susceptibility Ag2O CuO |
