Open AccessA new Pr-based bulk metallic glass and its properties
Author(s) -
Zhao Zuo-Feng,
Zhi Zhang,
Zheng Liu,
Ping Wen,
Zhao De-Qian,
M. X. Pan,
Wanlu Wang,
Weihua Wang
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.850
Subject(s) - supercooling , fragility , glass transition , amorphous metal , materials science , nucleation , relaxation (psychology) , transition metal , kinetic energy , thermodynamics , condensed matter physics , composite material , alloy , polymer , physics , chemistry , psychology , social psychology , biochemistry , catalysis , quantum mechanics
A new rare-earth Pr-based bulk metallic glass (BMG) is obtained in the shape of rod up to 5 mm in diameter by die cast. Unlike other rare-earth based BMGs, it exhibits a distinct glass transition, Tg=409K,the lowest glass transition temperature among the known BMGs, a large and stable supercooled liquid region and paramagnetic property. The glass transition as well as its kinetic nature and the fragility parameters m of the BMG have been studied. The BMG offers an ideal model to investigate the nature of glass transition as well as the relaxation and nucleation with a large experimentally accessible time and temperature window at very low temperature region.