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Twinning of dodecanedicarboxylic acidTwinning of 1,10-dodecanedicarboxyl acid (DDA) was observed in 0.1 mm thick films with a polarizing microscope. Twins originated from polycrystalline regions which tended to nucleate on twin faces, and terminated by intersection gone another. Twinning increased dramatically with addition of organic compounds with a similar molecular size and shape. Increasing the freezing rate, increasing the temperature gradient, and addition of silica particles increased twinning. It is proposed that twins nucleate with polycrystals and sometimes anneal out before they become observable. The impurities may enhance twinning either by lowering the twin energy or by adsorbing on growing faces.
Document ID
19860061305
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sen, R.
(Clarkson Univ. Potsdam, NY, United States)
Wilcox, W. R.
(Clarkson University Potsdam, NY, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1986
Publication Information
Publication: Journal of Crystal Growth
Volume: 75
ISSN: 0022-0248
Subject Category
Solid-State Physics
Accession Number
86A46043
Funding Number(s)
CONTRACT_GRANT: NAS8-34891
Distribution Limits
Public
Copyright
Other

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