Open AccessFORMATION OF BULK METALLIC GLASS Pd40.5Ni40.5P19 BY SOLIDIFICATION WITHOUT CONTAINER IN A DROPPING TUBE
Author(s) -
Wenkui Wang,
Zhicheng Qin,
Xu Ying-Fan,
Sun Guo-Xian,
Xiaoke Xu,
Bai Hai-Yang,
Jin Zuo-Wen,
Liu Pei-Ming,
Chen Jia-Gui
Publication year - 1989
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.38.995
Subject(s) - supercooling , materials science , tube (container) , nucleation , drop (telecommunication) , metal , alloy , composite material , helium , atmosphere (unit) , glass tube , container (type theory) , metallurgy , thermodynamics , atomic physics , physics , telecommunications , computer science
The dispersed molten droplets of Pd40.5Ni40.5P19 alloy solidified during fall down in a 1.2 m drop-tube which is filled with purified helium at 0.8 atmosphere. Owing to solidificat ion without container occurring at high undercooling, the heterogeneous nucleation was inhibited and the metallic glass sphere of 2 mm in diameter was obtained, which is the largest one prepared by dropping tube up to now.