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Crystallogenesis and Mineralogy
Saint Petersburg, Russia
1-5 October 2007
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Conferences & Meetings 2nd International Conference "Crystallogenesis and Mineralogy"
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Study of mechanism of defect formation in bicrystalline compositions K2Co(SO4)2·6H2O − K2Ni(SO4)2·6H2O

RMS-DPI code:  2007-1-9-0
Scientific session:  Session 1. Fundamental problems of crystallogenesis
Author listing:  Grigorieva M.S., Zaitseva S.P., Voloshin A.E., Manomenova V.L., Rudneva E.B., Glikin A.E., Kryuchkova L.Yu.
Principal author:  Grigoreva Marina Sergeevna
Language:  Russian
Abstract - Summary 
(short description):
A study of a K2Co(SO4)2·6H2O − K2Ni(SO4)2·6H2O system had been conducted. Solubility isotherms in the temperature range of 20-60 º— were measured. Processes of defect formation in the interface between K2Co(SO4)2·6H2O (layer) and K2Ni(SO4)2·6H2O (substrate) were studied by electron microprobe analysis and X-ray topography. It had been found, that inclusions and dislocations are formed in the interface providing misfit stresses relaxation. Nickel distribution in the layer is nonuniform, its concentration is reduced as the layer thickness increases, that is evidence of the substrate dissolution in the beginning stage of interaction between the crystal and the solution. A series of bicrystalline compositions had been grown. A dependence of transmission in UV range of the grown samples on the solution supersaturation was established. It is shown, that sample transmission in the UV range can be controlled by changing the growth conditions.
 
RMS-DPI code:  2007-1-9-0
Proceeedings volume 
in the RMS catalogue:
 
Crystallogenesis and Mineralogy
Pages:  13-14
File of proceedings 
(PDF): 
 545 K
Status:  printed
Recieved:  02/05/2007
Accepted:  17/05/2007
Published on-line:  06/01/2008
Permanent address of publication:  http://www.minsoc.ru/2007-1-9-0/
Contact author(s):  Grigorieva, Marina Sergeevna
 
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