Thermal stability and fragility of Pd-Si binary bulk metallic glasses

Na Chen; Yang Li; Ke Fu Yao

doi:10.1016/j.jallcom.2010.02.079

Thermal stability and fragility of Pd-Si binary bulk metallic glasses

Na Chen, Yang Li, Ke Fu Yao

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The thermal stability of the glassy structure and the supercooled liquids of Pd_80+xSi_20-x (x = 0, 1, and 2) binary bulk metallic glasses were investigated by differential scanning calorimetry. It is found that Pd-Si binary metallic glasses exhibit large activation energy for glass transition and crystallization, indicating the glassy structure and the supercooled liquids possess high thermal stability. Based on the kinetic nature of the glass transition and thus the resulted heating rate dependence, the fragility index of the Pd-Si binary glassy alloys has been obtained, and compared with other bulk metallic glasses.

Original language	English
Pages (from-to)	S211-S214
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.02.079
Publication status	Published - 2010 Aug
Externally published	Yes

Keywords

Binary alloy
Calorimetry
Fragility
Metallic glasses
Thermal analysis

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.02.079

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title = "Thermal stability and fragility of Pd-Si binary bulk metallic glasses",

abstract = "The thermal stability of the glassy structure and the supercooled liquids of Pd80+xSi20-x (x = 0, 1, and 2) binary bulk metallic glasses were investigated by differential scanning calorimetry. It is found that Pd-Si binary metallic glasses exhibit large activation energy for glass transition and crystallization, indicating the glassy structure and the supercooled liquids possess high thermal stability. Based on the kinetic nature of the glass transition and thus the resulted heating rate dependence, the fragility index of the Pd-Si binary glassy alloys has been obtained, and compared with other bulk metallic glasses.",

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author = "Na Chen and Yang Li and Yao, {Ke Fu}",

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T1 - Thermal stability and fragility of Pd-Si binary bulk metallic glasses

AU - Chen, Na

AU - Li, Yang

AU - Yao, Ke Fu

PY - 2010/8

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N2 - The thermal stability of the glassy structure and the supercooled liquids of Pd80+xSi20-x (x = 0, 1, and 2) binary bulk metallic glasses were investigated by differential scanning calorimetry. It is found that Pd-Si binary metallic glasses exhibit large activation energy for glass transition and crystallization, indicating the glassy structure and the supercooled liquids possess high thermal stability. Based on the kinetic nature of the glass transition and thus the resulted heating rate dependence, the fragility index of the Pd-Si binary glassy alloys has been obtained, and compared with other bulk metallic glasses.

AB - The thermal stability of the glassy structure and the supercooled liquids of Pd80+xSi20-x (x = 0, 1, and 2) binary bulk metallic glasses were investigated by differential scanning calorimetry. It is found that Pd-Si binary metallic glasses exhibit large activation energy for glass transition and crystallization, indicating the glassy structure and the supercooled liquids possess high thermal stability. Based on the kinetic nature of the glass transition and thus the resulted heating rate dependence, the fragility index of the Pd-Si binary glassy alloys has been obtained, and compared with other bulk metallic glasses.

KW - Binary alloy

KW - Calorimetry

KW - Fragility

KW - Metallic glasses

KW - Thermal analysis

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DO - 10.1016/j.jallcom.2010.02.079

M3 - Article

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SN - 0925-8388

VL - 504

SP - S211-S214

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SUPPL. 1

ER -

Thermal stability and fragility of Pd-Si binary bulk metallic glasses

Abstract

Keywords

ASJC Scopus subject areas

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