Premium
A Simple and Sensitive Method for Simultaneous High‐Temperature X‐ray Powder Diffraction and Thermogravimetric Analysis
Author(s) -
Wood I. G.,
Woods P.,
Stuart J. A.
Publication year - 1998
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889897011308
Subject(s) - thermogravimetric analysis , powder diffraction , diffraction , gypsum , materials science , x ray crystallography , dehydration , x ray , analytical chemistry (journal) , optics , chemistry , crystallography , chromatography , composite material , physics , organic chemistry , biochemistry
An apparatus is described for simultaneous high‐temperature X‐ray powder diffraction and thermogravimetric studies, based on a Guinier‐Lenné focusing powder camera and an analytical chemical balance. No modifications are required to either instrument and the method would be readily useable with many other types of high‐temperature powder diffraction systems. The technique is illustrated by a study of the dehydration reactions in an artists' plaster containing gypsum. A sensitivity to changes in weight approaching 100 μg in a 12.5 mg sample was achieved over a period of 60 h.