Anomalous thermal expansion in the deep super-cooled liquid region of a ZrCuAlAg bulk metallic glass

Q. Hu; J. M. Wang; Y. H. Yan; F. F. Luo; S. Guo; J. Liu; S. S. Chen; B. Huang; D. P. Lu; J. Z. Zou; X. R. Zeng

doi:10.1080/21663831.2017.1408713

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Anomalous thermal expansion in the deep super-cooled liquid region of a ZrCuAlAg bulk metallic glass

Original Report | 更新时间：2026-08-19

- Anomalous thermal expansion in the deep super-cooled liquid region of a ZrCuAlAg bulk metallic glass
- Materials Research Letters Vol. 6, Issue 2, Pages: 121-129(2018)
- 作者机构：
  
  1. Shenzhen Key Laboratory of Special Functional Materials College of Materials Science and Engineering and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering Shenzhen University
  2. Institute of Applied Physics Jiangxi Academy of Sciences
  3. Department of Industrial and Materials Science Chalmers University of Technology
  4. State Key Laboratory of Solidification Processing Northwestern Polytechnical University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2017.1408713
  CLC：
- Online First：11 December 2017，
  
  Published：2018
- 稿件说明：
移动端阅览
Q. Hu, J. M. Wang, Y. H. Yan, et al. Anomalous thermal expansion in the deep super-cooled liquid region of a ZrCuAlAg bulk metallic glass[J]. Materials Research Letters, 2018, 6(2): 121-129.
DOI：

Q. Hu, J. M. Wang, Y. H. Yan, et al. Anomalous thermal expansion in the deep super-cooled liquid region of a ZrCuAlAg bulk metallic glass[J]. Materials Research Letters, 2018, 6(2): 121-129. DOI： 10.1080/21663831.2017.1408713.

摘要

Abstract

BSTRACTBulk metallic glasses (BMGs)

like other glasses

soften in the super-cooled liquid region (SCLR). Here in this work

surprisingly

a large expansion is reported occurring in the deep SCLR of a Zr

BMG. Nano-crystals (NCs) are found precipitated during the anomalous expansion of Zr

but also in the SCLR of Zr

that exhibits a conventional softening. It is found that there is a steep composition and density change at the NCs/amorphous matrix transition region in the former alloy

and this transition region exerts a thermal stress of about 0.15 MPa to the surrounding super-cooled liquid (SCL) and drives the soft SCL to expand severely.

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