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A simple diffractometer heating stage

Published online by Cambridge University Press:  09 July 2018

G. Brown ,
B. Edwards ,
E. C. Ormerod  and
A. H. Weir
G. Brown
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire
B. Edwards
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire
E. C. Ormerod
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire
A. H. Weir
Affiliation:
Rothamsted Experimental Station, Harpenden, Hertfordshire
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Abstract

The construction is described of a heating stage for examining oriented clay specimens in a Philips' diffractometer. The stage, which is simple and cheap to make, is interchangeable with standard specimen holders, operates over the range 20—265°C and does not require the diffractometer to be specially modified. The maximum temperature attained at the surface of the specimen collapses freely-expanding Mgsaturatcd vermiculite and prevents re-expansion of layer silicate minerals once they have been collapsed.

Type
Research Article
Information
Clay Minerals , Volume 9 , Issue 4 , December 1972 , pp. 407 - 414
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1972

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References

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