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Brazhkin, V. V.*; Akola, J.*; Katayama, Yoshinori; Kohara, Shinji*; Kondrin, M. V.*; Lyapin, A. G.*; Lyapin, S. G.*; Tricot, G.*; Yagafarov, O.
Journal of Materials Chemistry, 21(28), p.10442 - 10447, 2011/07
Times Cited Count:18 Percentile:48.65(Chemistry, Physical)PO compound is an archetypical glass-forming oxide with a high hygroscopicity. We found that the quenching from the POmelt under ultrahigh pressures enables obtaining densified PO glasses with a residual densification up to 12% at normal conditions. These glasses have a low hygroscopicity and can exist under air conditions for several weeks. An examination of the structure of the new form of PO glass reveals a cardinal decrease of the volume of nanovoids in the glassy matrix.
Suzuya, Kentaro; Kohara, Shinji*; Takata, Masaki*; Ono, Hideo*; Akola, J.*
no journal, ,
Void distributions in various oxide glasses were analyzed using atomic configurations obtained by reverse Monte Carlo modeling on the basis of high-energy X-ray and pulsed-neutron diffraction data. We found that silica glass exhibits about 30% of volume assigned to the void. Furthermore we discuss the relationship between void and glass forming ability.