Results 201 to 210 of about 731,197 (277)

Physical properties of glasses containing several glass-forming oxides

Journal of Non-Crystalline Solids, 1986
Abstract Physical properties, such as dielectric loss, acoustic velocity and electrical conductivity of glasses containing several glass-forming oxides were measured at temperatures in the range from −200°C to 200°C. The relationships between the structure and properties of the glasses, and the change in coordination number of individual glass ...
Lin Fengying
exaly   +3 more sources

Application of the Sanderson Method to the Calculation of Bonding Energies in Oxide Glass-Forming Systems

Glass Physics and Chemistry, 2003
The application of the Sanderson method to the calculation of bonding energies of oxide systems in different states of aggregation is considered. In the framework of this method, the bonding energies of different oxides and oxide glass-forming systems are calculated with the inclusion of the second coordination sphere.
Valentina L. Stolyarova   +2 more
exaly   +3 more sources

Helium Migration in Glass‐Forming Oxides

Journal of Applied Physics, 1972
Permeation, diffusion, and solubility of helium in vitreous B2O3, SiO2, and GeO2 have been measured. The permeability and diffusivity decrease in the order B2O3>SiO2>GeO2, whereas the solubility decreases in the order SiO2>B2O3>GeO2. Differences in the activation energy for diffusion between vitreous SiO2 and GeO2 are due to
J. Shelby
semanticscholar   +2 more sources

Structural transitions and polyamorphism in glass-forming oxides

Journal of Non-Crystalline Solids, 2002
Brillouin light scattering was used to monitor the structural evolution of glass-forming oxide melts as a function of temperature, including the glass transition range. The storage and loss components of the high-frequency complex mechanical modulus are interpreted in terms of the rigidity resulting from network connectivity and the energy dissipated ...
J. Kieffer
semanticscholar   +2 more sources

Structural Developments in Fragile Glass Forming Oxides

MRS Proceedings, 1995
ABSTRACTBrillouin light has been used to measure the complex mechanical modulus of the molecular scale structure in oxide melts. The storage modulus reflects the degree of networking and structural integrity, while the loss modulus, which can be attributed to aperiodic motions of structural components, provides a measure of the mobility of these ...
J. Masnik   +3 more
semanticscholar   +2 more sources

Vibrational Spectra of Glass-Forming Oxides with Coordination Lattice Structure

, 1965
The higher oxide of antimony has as yet been found only in the crystalline state. Studies of its structure showed that this crystalline form has cubic structure with Oh symmetry [43]. Antimonic anhydride has not yet been obtained in the glassy state, although by the Zachariasen theory this compound should form a glass.
D. V. Skobel'tsyn
semanticscholar   +2 more sources

Glass-forming ability and chemical stability of magneto-optical glass heavily doped with rare earth oxide

Journal Wuhan University of Technology, Materials Science Edition, 2009
Guoping Chen   +2 more
exaly   +2 more sources

A significant enhancement of sodium ion conductivity in phosphate glasses by addition of WO3 and MoO3: the effect of mixed conventional-conditional glass-forming oxides.

Physical Chemistry, Chemical Physics - PCCP, 2021
Ion conducting oxide glasses are attractive materials for application in various electrochemical devices and an understanding of the structure-transport properties relationship is crucial for their development. An interesting effect of glass structure on
Sanja Renka   +6 more
semanticscholar   +1 more source

Structure and Raman spectra of glasses containing several glass-forming oxides and no glass-modifying oxide

Journal of Non-Crystalline Solids, 1986
Abstract Binary glasses containing no modifying oxides, such as SiO2GeO2, SiO2B2O3, SiO2P2O5, GeO2B2O3, Al2O3P2O5 and ternary glasses SiO2GeO2P2O5, Al2O3B2O3P2O5, B2O3SiO2P2O5, Al2O3ZrO2P2O5 have been prepared by melting and CVD methods. The Raman spectra have also been measured.
Hai-Yan Chen   +3 more
semanticscholar   +2 more sources

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