Phase Separation of SiO<sub>2</sub>-B<sub>2</sub>O<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub>-RO-R<sub>2</sub>O Glasses
نویسندگان
چکیده
منابع مشابه
Evidence for nanoscale phase separation of stressed–rigid glasses
Ternary (Ge2X3)x(As2X3)1−x glasses with X = S or Se are of interest because they span a mean coordination number r in the 2.40 < r < 2.8 range that is characteristic of stressed–rigid glasses. We have examined X = S glasses in Raman scattering and T -modulated differential scanning calorimetry measurements over the 0 < x < 1.0 range. Glass transition temperatures, Tg(x), increase monotonically ...
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We have investigated the materials formed by Ag photodiffusion in Se-rich Ge–Se thin glass films. The amount of Ag that can be incorporated by this method saturates at a level dependent on the quantity of Se in the starting glass. The photodiffused Ag reacts with the Se to form distinct Ag Se and Ge-rich backbone phases as 2 determined by Raman and XRD analyses. The conducting Ag Se phases exis...
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The structural behavior of rapidly quenched Cu-Zr amorphous alloys was analyzed. High energy X-ray diffraction patterns and atomic pair correlation functions exhibit monotonic changes with composition. The experimental results can be well described by a solid solution-like replacement of Cu and Zr atoms in the whole composition range. No indications are observed that would support the existence...
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Results are presented for nuclear motion calculations on D:, HzD+ and the van der Waals compiex ArCO in rotationally excited states. These calculations are performed using a two-step variational procedure which allows large ro-vibrational interactions (Coriolis couplings) to be treated accurately. The difficulty of assigning states in systems such as HzD+ where the Coriolis interactions are lar...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 1990
ISSN: 0914-5400,1882-1022
DOI: 10.2109/jcersj.98.1093