Anelastic spectroscopy in potassium aluminum metaphosphate glasses

External sources

http://dx.doi.org/10.1016/j.jnoncrysol.2006.03.079

External sources

http://dx.doi.org/10.1016/j.jnoncrysol.2006.03.079

Date

Authors

Grandini, Carlos Roberto

de Almeida, L. H.

Hernandes, A. C.

Publisher

Elsevier

Type

Article

Access right

Acesso restrito

External sources

http://dx.doi.org/10.1016/j.jnoncrysol.2006.03.079

External sources

http://dx.doi.org/10.1016/j.jnoncrysol.2006.03.079

Abstract

Anelastic spectroscopy (internal friction and the dynamic modulus) was measured by means of a torsion pendulum at 3-12 Hz, in the range of 100-300 K, for a KAP metaphosphate glass. Two thermally activated internal friction peaks appeared at ∼190 and ∼250 K. These peaks were attributed to the behavior of potassium ions (high temperature) and to hydrogen (low temperature). Dynamic modulus showed a gradual decrease with increasing temperature in the range studied for all compositions. © 2006 Elsevier B.V. All rights reserved.

Keywords

Acoustic properties , Mechanical , Phosphates , stress relaxation , Elastic moduli , Internal friction , Positive ions , Potassium compounds , Spectroscopic analysis , Thermal effects , Anelastic spectroscopy , Dynamic modulus , Potassium aluminum metaphosphate glasses , Potassium ions , Glass

Language

English

Citation

Journal of Non-Crystalline Solids, v. 352, n. 32-35, p. 3410-3413, 2006.

URI

http://hdl.handle.net/11449/69090

Collections

Bauru - FC - Faculdade de Ciências

Units

Unit

Bauru, Faculdade de Ciências - FC

FC

Campus: Bauru

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