TY - JOUR
T1 - Crystal domain growth driven by nanometric phase separation in perfect surface crystallization
AU - Takahashi, Yoshihiro
AU - Yamaoka, Kazuki
AU - Yamazaki, Yoshiki
AU - Miyazaki, Takamichi
AU - Fujiwara, Takumi
N1 - Funding Information:
This study was supported by the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government.
PY - 2013/8/12
Y1 - 2013/8/12
N2 - Phase separation often makes glass structure inhomogeneous. Nevertheless, a uniform texture consisting of single-crystal domains has been found by crystallization in nonstoichiometric glass, i.e., perfect surface- crystallization (PSC). Although the PSC is probably caused by evolution of SiO2-rich amorphous nanoparasites on the domain, its mechanism has not been understood yet. In this study, we examined an early-stage of PSC in a strontium-titanosilicate glass by means of nanoscopic observations. It was demonstrated that the binodal-like nanometric phase-separation and crystal-growth of fresnoite-type phase occur simultaneously at the crystal interface. It was strongly suggested that the PSC process is driven by the phase separation.
AB - Phase separation often makes glass structure inhomogeneous. Nevertheless, a uniform texture consisting of single-crystal domains has been found by crystallization in nonstoichiometric glass, i.e., perfect surface- crystallization (PSC). Although the PSC is probably caused by evolution of SiO2-rich amorphous nanoparasites on the domain, its mechanism has not been understood yet. In this study, we examined an early-stage of PSC in a strontium-titanosilicate glass by means of nanoscopic observations. It was demonstrated that the binodal-like nanometric phase-separation and crystal-growth of fresnoite-type phase occur simultaneously at the crystal interface. It was strongly suggested that the PSC process is driven by the phase separation.
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U2 - 10.1063/1.4818674
DO - 10.1063/1.4818674
M3 - Article
AN - SCOPUS:84882383302
VL - 103
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 7
M1 - 071909
ER -