Structural change in Li and Na aluminophosphate glasses: Evidence of a "structural mixed alkali effect"
Article Abstract:
The short- and long-range structure of a series of single and mixed aluminophosphate glasses with the general composition [xN[a.sub.2]O (46 - x)L[i.sub.2]O], [yA[l.sub.2)[O.sub.3] (54 - y)[P.sub.2)[O.sub.5]] is analyzed using [.sup.31.P] and [.sup.27.A]l magic-angle spinning (MAS) NMR as well as small-angle X-ray scattering. The results indicate that aluminum is mainly octahedrally coordinated in these glasses and that there is most likely segregation of the Al[(OP).sub.6] species.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Ionic conductivity properties in bismuth germanate silicate glasses at various temperatures
Article Abstract:
Ionic conductivities in the bismuth germanate silicate glasses are investigated in the frequency range 100 Hz to 15 MHz and in the temperature range from 300 K to above the glass transition temperature Tg. The frequency-dependent electrical data are discussed in the framework of the complex impedance and the power-law conductivity.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
Transition from ionic to metallic glasses by rapid quenching of Bi-BiCl(sub 3) and Bi-BiCl(sub 3)-KCl melts
Article Abstract:
Glasses with electronic properties intermediate between the ionic and metallic state are obtained. This is achieved by melts of Bi-BiCl(sub 3) and Bi-BiCl(sub 3)-KCl mixtures being rapidly quenched into the glassy state at cooling rates of ~10(super 8) K/s.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Structure and reactivity in Langmuir films of amphiphilic alkyl and thio-alkyl esters of alpha-amino acids at the air/water interface
- Abstracts: Thermodynamics and Brewster angle microscopy studies of fatty acid/cholesterol mixtures at the air/water interface
- Abstracts: Effect of cholesterol on the properties of phospholipid membranes. 1. structural features. A comprehensive liquid simulation study of neat formic acid
- Abstracts: Studies on the interaction of THF with FER zeolite. Influence of dynamics on the structure and NMR chemical shift of a zeolite precursor
- Abstracts: Development of near-infrared 35fs laser microscope and its application to the detection of three- and four-photon fluorescence of organic microcrystals