EXAFS studies of amorphous Fe50Ta50 powders during mechanical alloying

C. K. Lin, P. Y. Lee, J. L. Yang, C. Y. Tung, N. F. Cheng, Y. K. Hwu

研究成果: 雜誌貢獻文章同行評審

21 引文 斯高帕斯(Scopus)

摘要

The progress of the preparation of amorphous Fe50Ta50 alloy powders, starting from elemental Fe and Ta crystalline powder mixtures, by mechanical alloying using a SPEX high energy ball mill was investigated. The as-milled Fe50Ta50 powders were examined as a function of milling time by scanning electron microscopy (SEM), microhardness, X-ray diffraction, differential thermal analysis (DTA), and extended X-ray absorption fine structure (EXAFS). The radial distribution functions (RDFs) obtained from Fourier transformation of EXAFS spectra reveal that there are differences in local atomic structure after prolong milling. When combined with information from other techniques, the results allow the amorphization process for Fe50Ta50 during the mechanical alloying (MA) to be better understood.
原文英語
頁(從 - 到)520-525
頁數6
期刊Journal of Non-Crystalline Solids
232-234
出版狀態已發佈 - 七月 11 1998
對外發佈

ASJC Scopus subject areas

  • 陶瓷和複合材料
  • 電子、光磁材料

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