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From Molten Glass to Crystallizable Melt: The Essence of Structural Evolution Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Conference New Advances in Crystal Growth and Nucleation : 2005 Summer School on Crystal Growth and Nucleation of Complex Materials
27 Aug - 3 Sep 2005 , Barga, Nr. Lucca
Journal Journal of Crystal Growth
ISSN: 0022-0248
Output data Year: 2006, Volume: 294, Number: 1, Pages: 22-28 Pages count : 7 DOI: 10.1016/j.jcrysgro.2006.05.026
Tags A1. Computer simulations, A1. Nucleation and crystallization models, A1. Raman spectroscopy, A1. Synchrotron diffraction, A2. Crystallization from melt, B1. Complex oxides
Authors Tsvetkov E.G. 1 , Davydov A.V. 1,2 , Ancharov A.I. 3 , Yudaev I.V. 4
Affiliations
1 Institute of Geology & Mineralogy SB of the RAS, Novosibirsk, Russia
2 Institute of Inorganic Chemistry SB of the RAS, Novosibirsk, Russia
3 Institute of Solid state Chemistry & Mechanochemistry SB of the RAS, Novosibirsk, Russia
4 Boreskov Institute of Catalysis SB of the RAS, Novosibirsk, Russia

Funding (2)

1 Russian Foundation for Basic Research 04-05-64438
2 Президиум СО РАН 155

Abstract: Within the frames of our model concept an attempt is made to reveal the principal differences in the structural self-assembling of melts responsible for their crystallization or vitrification. Results of in situ synchrotron diffraction and Raman spectroscopic study of melts, NMR spectroscopy of glasses, and computer modeling of predominant arrangement of cation and anion components of melts with different compositions were used as an experimental basis. We introduce the notions of active crystal-forming part of melt, which is an assembly of cation–anion associative complexes and “free” structure-forming cations, and its passive part, which is fragments of polycondensed anion groupings of various scales. Crystallization is interpreted as cooperative interaction caused by the formation of coordination spheres of “free” cations inside precursor clusters resulting from the crystal-forming part of melt.
Cite: Tsvetkov E.G. , Davydov A.V. , Ancharov A.I. , Yudaev I.V.
From Molten Glass to Crystallizable Melt: The Essence of Structural Evolution
Journal of Crystal Growth. 2006. V.294. N1. P.22-28. DOI: 10.1016/j.jcrysgro.2006.05.026 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Published online: Jul 20, 2006
Published print: Aug 15, 2006
Identifiers:
publication_identifier.wos_identifier_type WOS:000240646600005
publication_identifier.scopus_identifier_type 2-s2.0-33747816201
publication_identifier.rinz_identifier_type 13504812
publication_identifier.accession_number_identifier_type 2006:870305
publication_identifier.chemical_accession_number_identifier_type 145:442492
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