Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
In situ high-temperature X-ray diffraction study of the Rb 2O-B2O3 glass forming system. / Bubnova, R. S.; Krzhizhanovskaya, M. G.; Polyakova, G.; Filatov, S. K.
в: Crystal Research and Technology, Том 40, № 1-2, 01.01.2005, стр. 73-82.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - In situ high-temperature X-ray diffraction study of the Rb 2O-B2O3 glass forming system
AU - Bubnova, R. S.
AU - Krzhizhanovskaya, M. G.
AU - Polyakova, G.
AU - Filatov, S. K.
PY - 2005/1/1
Y1 - 2005/1/1
N2 - The results of X-ray structural analysis, in situ powder high temperature X-ray diffraction (HTXRD), DTA and annealing studies are summarized to refine the phase equilibria in the Rb2O-B2O3 system in air. Samples were prepared by solid state reaction as well as by the crystallisation of glasses. Investigations show that, in the latter case, high-temperature metastable phases crystallise first, and it takes some months to reach phase equilibria. The recent determination of crystal structures of Rb2B4O7, Rb3B7O 12, Rb3B19O31, α,β- RbB3O5 and β-RbB5O8 along with the HTXRD and DTA study led to substantial revising of the Rb 2O-B2O3 phase diagram between the 5-50 mol. % Rb2O compositions. New compounds Rb2B7O 12 and Rb5B19O31 and new phase relations in this connection are presented. The low (α) and high temperature (β) modifications of RbB3O5 were discovered and α↔β transition is studied in details by powder HTXRD.
AB - The results of X-ray structural analysis, in situ powder high temperature X-ray diffraction (HTXRD), DTA and annealing studies are summarized to refine the phase equilibria in the Rb2O-B2O3 system in air. Samples were prepared by solid state reaction as well as by the crystallisation of glasses. Investigations show that, in the latter case, high-temperature metastable phases crystallise first, and it takes some months to reach phase equilibria. The recent determination of crystal structures of Rb2B4O7, Rb3B7O 12, Rb3B19O31, α,β- RbB3O5 and β-RbB5O8 along with the HTXRD and DTA study led to substantial revising of the Rb 2O-B2O3 phase diagram between the 5-50 mol. % Rb2O compositions. New compounds Rb2B7O 12 and Rb5B19O31 and new phase relations in this connection are presented. The low (α) and high temperature (β) modifications of RbB3O5 were discovered and α↔β transition is studied in details by powder HTXRD.
KW - Glass forming materials
KW - Melting processes
KW - Phase diagram
KW - Rubidium borates
UR - http://www.scopus.com/inward/record.url?scp=25444513371&partnerID=8YFLogxK
U2 - 10.1002/crat.200410309
DO - 10.1002/crat.200410309
M3 - Article
AN - SCOPUS:25444513371
VL - 40
SP - 73
EP - 82
JO - Crystal Research and Technology
JF - Crystal Research and Technology
SN - 0232-1300
IS - 1-2
ER -
ID: 47837954