α-β phase re-transformation kinetics in nickel sulphide

被引：16

作者：

Bishop, DW ^{[1
]}

Thomas, PS ^{[1
]}

Ray, AS ^{[1
]}

机构：

[1] Univ Technol Sydney, Dept Chem Mat & Forens Sci, Broadway, NSW 2007, Australia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 56卷 / 01期

关键词：

DSC; nickel sulphide; TG; toughened glass; X-ray diffraction;

D O I：

10.1023/A:1010179424043

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nickel sulphide (NiS) was characterised using X-ray diffraction, thermal gravimetric analysis (TG) and differential scanning calorimetry (DSC). The 'as received' Millerite, stoichiometric NiS, observed to be slightly nickel deficient, was found to readily decompose in a nitrogen atmosphere at elevated temperatures (450 degrees C max.) to the sulphur deficient Godlevskite, Ni7S6. DSC and X-ray measurements demonstrated that the high temperature form of the Godlevskite was readily stabilised at room temperature. The kinetics of the alpha-beta re-transformation in Godlevskite were then investigated using DSC and were observed to be first order.

引用

页码：429 / 435

页数：7