Anelastic spectroscopy in potassium aluminum metaphosphate glasses
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Data
2006-09-15
Autores
Grandini, Carlos Roberto [UNESP]
de Almeida, L. H. [UNESP]
Santos, C. N.
Hernandes, A. C.
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Resumo
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.
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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
Como citar
Journal of Non-Crystalline Solids, v. 352, n. 32-35, p. 3410-3413, 2006.