Research output: Contribution to journal › Article › peer-review
Kinetics of early stages of phase separation in glasses of the PbO-B 2O3 system. / Golubkov, V. V.; Stolyarova, V. L.
In: Glass Physics and Chemistry, Vol. 37, No. 3, 01.06.2011, p. 252-257.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Kinetics of early stages of phase separation in glasses of the PbO-B 2O3 system
AU - Golubkov, V. V.
AU - Stolyarova, V. L.
PY - 2011/6/1
Y1 - 2011/6/1
N2 - Kinetics of changes in sizes of phase regions and volumes at the early stages of the phase separation of glasses in the PbO-B2O3 system has been studied using smallangle X-ray scattering (SAXS). The existence of the interval of heating durations in which the changes in the sizes of the phase regions and volumes are small so that it is possible to approximately consider that the structure is in a relatively stable state has been experimentally established. The relative phase volumes and compositions in glasses of the studied system are close to the equilibrium ones already for the sizes (radii) of the regions of the separated phase of about 15- 20 Å and the Ostwald ripening (coalescence) stage begins. Maxima due to the interparticle interference have been observed in the angular dependences of the SAXS intensities. This indicates ordering in the distribution of the phase regions.
AB - Kinetics of changes in sizes of phase regions and volumes at the early stages of the phase separation of glasses in the PbO-B2O3 system has been studied using smallangle X-ray scattering (SAXS). The existence of the interval of heating durations in which the changes in the sizes of the phase regions and volumes are small so that it is possible to approximately consider that the structure is in a relatively stable state has been experimentally established. The relative phase volumes and compositions in glasses of the studied system are close to the equilibrium ones already for the sizes (radii) of the regions of the separated phase of about 15- 20 Å and the Ostwald ripening (coalescence) stage begins. Maxima due to the interparticle interference have been observed in the angular dependences of the SAXS intensities. This indicates ordering in the distribution of the phase regions.
KW - Coalescence
KW - Phase separation
KW - Small-angle X-ray scattering
KW - Structure
UR - http://www.scopus.com/inward/record.url?scp=80052656379&partnerID=8YFLogxK
U2 - 10.1134/S1087659611030047
DO - 10.1134/S1087659611030047
M3 - Article
AN - SCOPUS:80052656379
VL - 37
SP - 252
EP - 257
JO - Glass Physics and Chemistry
JF - Glass Physics and Chemistry
SN - 1087-6596
IS - 3
ER -
ID: 41720300