Open AccessSTUDIES ON THE CRYSTALLIZATION OF AMORPHOUS 3 BaO·3 B2O3·2GeO2
Author(s) -
Zhifang Chai,
Jinping Zhang,
Jingkui Liang
Publication year - 1987
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.36.684
Subject(s) - crystallization , materials science , activation energy , amorphous solid , grain size , ternary operation , isothermal process , chemical engineering , thermodynamics , crystallography , chemistry , composite material , physics , computer science , programming language , engineering
3BaO·3B2O3·2GeO2 is a new compound in the ternary system BaO-B2O3-GeO2. Its crystallization process has been studied by means of thermoanalysis method. The temperature of crystallization decreases distinctly with decrease of the grain size. The activation energy of crystallization of the amorphous material with different grain size have been determined by means of the isothermal crystallization method or thermal peak shift method. The smaller the grain size is, the greater the activation energy of crystallization.