Origin of Crazing in Deuterated KDP Crystals

The H/D isotopic exchange between DKDP crystals [K(H(1‑x)D x )2­PO4] and their environment causes a surface damage known as crazing. By studying crystals, grown under perfectly stationary conditions, with a combination of analysis techniques (surface microtopography, micro-Raman spectroscopy, X-ray...

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Bibliographic Details
Published in:Crystal growth & design 2014-12, Vol.14 (12), p.6581-6588
Main Authors: Zaccaro, Julien, Debray, Jérôme, Douillet, Sabine, Ibanez, Alain
Format: Article
Language:English
Subjects:
Condensed Matter
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Diffusion in solids
Exact sciences and technology
Materials Science
Methods of crystal growth
physics of crystal growth
Physics
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
Transport properties of condensed matter (nonelectronic)
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Summary:The H/D isotopic exchange between DKDP crystals [K(H(1‑x)D x )2­PO4] and their environment causes a surface damage known as crazing. By studying crystals, grown under perfectly stationary conditions, with a combination of analysis techniques (surface microtopography, micro-Raman spectroscopy, X-ray diffraction topography, trace element analysis) we were able to determine the localization of the isotopic exchange, quantify it, and connect it with a preferential incorporation of impurity. This enables us to propose a direct correlation between the growth mechanisms governing the impurity incorporation, the increase of proton diffusion in the structure in that part of the crystal hence on the localization, and the magnitude of crazing upon aging of the DKDP crystals.
ISSN:1528-7483
1528-7505
DOI:10.1021/cg501491x