Glass structure control of Zr-TM-Al (TM: Cu, Ni and Co) BGAs with small additive elements

Yoshihiko Yokoyama, Akihisa Inoue

研究成果: Conference contribution

抄録

The degree of amorphousness of the cast glassy sample is evaluated by free volume, which can be roughly estimated by density. The glass structural difference of cast glassy samples is mainly originated to the difference of those cooling rates. In order to clarify the degree of amorphousness, we use the volume change during annealing just below glass transition temperature (Tg) in this study. Therefore the volume change has close relation with free volume. We tried to control the excess free volume in Zr-TM-Al (TM: Cu, Ni and Co) bulk glassy alloys (BGAs) using small additive element. We found the elements; Pd, Ag, Pt and Au, whose outer d-electrons are filled up, are effective to increase the volume change/free volume in Zr-Cu-Al BGAs. The relationship between the Young's modulus and volume change indicates the existence of two groups. The difference between them might be originated to the difference in glass structures.

本文言語English
ホスト出版物のタイトルSupplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
出版社Trans Tech Publications Ltd
ページ1971-1976
ページ数6
PART 2
ISBN(印刷版)0878494286, 9780878494286
DOI
出版ステータスPublished - 2007 1 1
外部発表はい
イベント5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
継続期間: 2006 7 42006 7 8

出版物シリーズ

名前Materials Science Forum
番号PART 2
539-543
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
CountryCanada
CityVancouver
Period06/7/406/7/8

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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