Title

Imperfect low-angle boundaries and fracture in hydrothermally grown berlinite crystals

Authors

Authors

R. C. Morris;B. H. T. Chai

Comments

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Abbreviated Journal Title

J. Cryst. Growth

Keywords

Crystallography; Materials Science, Multidisciplinary; Physics, Applied

Abstract

We present evidence for finite and/or imperfect low-angle grain boundaries and associated long-range stress fields, formed during the hydrothermal growth of berlinite (alpha-AlPO4) crystals on multiple-seed-plate arrays. These defective boundaries originate at angularly misaligned junctions between adjacent seed plates as a result of the failure of some component sets of dislocations to propagate epitaxially into the new growth. Lacking a full complement of dislocations, the newly grown boundary may be imperfect and generate long-range stresses, leading to fracture and/or plastic flow. (C) 1998 Elsevier Science B.V. All rights reserved.

Journal Title

Journal of Crystal Growth

Volume

191

Issue/Number

1-2

Publication Date

1-1-1998

Document Type

Article

Language

English

First Page

108

Last Page

112

WOS Identifier

WOS:000074725500017

ISSN

0022-0248

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