Precise measurement of density in the isothermal relaxation processes of Pd42.5Cu30Ni7.5P20 and Zr50Cu40Al10 glasses
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- Haruyama Osami
- Department of Physics, Tokyo University of Science
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- Yokoyama Yoshihiko
- Institute of Materials Research, Tohoku University
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- Inoue Akihisa
- Institute of Materials Research, Tohoku University
書誌事項
- タイトル別名
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- Precise Measurement of Density in the Isothermal Relaxation Processes of Pd<SUB>42.5</SUB>Cu<SUB>30</SUB>Ni<SUB>7.5</SUB>P<SUB>20</SUB> and Zr<SUB>50</SUB>Cu<SUB>40</SUB>Al<SUB>10</SUB> Glasses
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説明
The isothermal relaxation processes of bulk Zr50Cu40Al10 and Pd42.5Cu30Ni7.5P20 glasses were examined by density reduction associated with relaxation. Density experiments were carried out by buoyancy method at room temperature. The isothermal relaxation curves were best fitted by a stretched exponential function with a Kohlrausch exponent less than unity. Based on free volume model, the reduced free volume xfas=0.0355 and flow defect concentration Cfas=5.80×10−13 in as-quenched state was obtained for Pd42.5Cu30Ni7.5P20 glass. However, the temperature at which the free volume started to deviate from equilibrium concentration on cooling of the melt was not in accordance with calorimetric glass transition temperature.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 48 (7), 1708-1710, 2007
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204251906432
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- NII論文ID
- 40015443650
- 130004453662
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 8791618
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
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- 使用不可
