Preparation and characterization of nanocrystalline Nb 3Al alloy

Chuan Yi Wu, Hong Ming Lin, Hsin Fu Lin, Ming Fong Tai, Chang Ren Wang, Chung Kwei Lin, P. Y. Lee

研究成果: 雜誌貢獻文章同行評審

3 引文 斯高帕斯(Scopus)

摘要

The nanocrystalline Nb 3Al is prepared by the gas condensation method. The nanocrystalline Nb 3Al size with injected 0.1 mbar helium pressure is about 15nm. During the gas condensation process, the superconductivity disappears at as-prepared NC Nb 3Al with the mean particle size about 15 nm. After annealing the as-prepared NC Nb 3Al at 500°C for 30 minutes, the mean particle size of NC Nb 3Al is about 30 nm and the superconductivity appear with T c about 16K. The results show that superconductivity can be achieved in nanocrystals with a rather smaller size than the typical penetration length of magnetic field. Further study of the influence of gas condensation alloying at high magnetic fields is crucial to the understanding of the superconductivity properties of NC Nb 3Al.
原文英語
頁(從 - 到)1967-1971
頁數5
期刊Scripta Materialia
44
發行號8-9
DOIs
出版狀態已發佈 - 五月 18 2001
對外發佈

ASJC Scopus subject areas

  • 電子、光磁材料
  • 材料科學(全部)
  • 金屬和合金

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