GeO2-added MgB2 superconductor obtained by Spark Plasma Sintering
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- 作者：D. Batalu
- 关键词：MgB2 ; GeO2 addition ; Critical current density ; Spark Plasma Sintering ; Microstructure
- 刊名：Solid State Sciences
- 出版年：2015
- 出版时间：October 2015
- 年：2015
- 卷：48
- 期：Complete
- 页码：23-30
- 全文大小：4368 K
文摘
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- <p id="p0010">High-density MgB2(GeO2)x, x = 0.005, 0.01, 0.03 bulks were obtained by SPS.p>
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- <p id="p0015">GeO2 addition enhances Jc and Hirr: the optimum composition is for x = 0.005.p>
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- <p id="p0020">Secondary phases (25–100 nm) with sphere-like or irregular shapes were observed.p>
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- <p id="p0025">Point pinning is major. Addition of more GeO2 enhances the grain boundary pinning.p>