Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content

It is normally assumed in the literature that the Snoek relaxation in b.c.c. metals leads to internal friction peaks of the Debye type at very low interstitial contents. By means of a new measuring technique, however, it is shown that this is not generally the case. This technique allows simultaneou...

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Detalles Bibliográficos
Autor principal: Povolo, Francisco
Publicado: 1994
Materias:
Composition effects
Friction
Internal friction
Pendulums
Relaxation processes
Temperature measurement
Thermal effects
Boltzmanns constant
Inertia
Interstitials
Snoek relaxation
Niobium compounds
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09258388_v211-212_nC_p41_Povolo
http://hdl.handle.net/20.500.12110/paper_09258388_v211-212_nC_p41_Povolo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09258388_v211-212_nC_p41_Povolo
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spelling paper:paper_09258388_v211-212_nC_p41_Povolo2023-06-08T15:51:24Z Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content Povolo, Francisco Composition effects Friction Internal friction Pendulums Relaxation processes Temperature measurement Thermal effects Boltzmanns constant Inertia Interstitials Snoek relaxation Niobium compounds It is normally assumed in the literature that the Snoek relaxation in b.c.c. metals leads to internal friction peaks of the Debye type at very low interstitial contents. By means of a new measuring technique, however, it is shown that this is not generally the case. This technique allows simultaneous measurement of the internal friction vs. the temperature and of its derivatives with respect to the temperature and frequency. The data indicate that a distribution of relaxation times is present even for concentrations of a few hundred atomic parts per million. Some results for the Snoek relaxation in niobium are discussed in detail, showing that the parameters of the distribution change with the concentration of interstitials and the temperature. © 1994. Fil:Povolo, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1994 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09258388_v211-212_nC_p41_Povolo http://hdl.handle.net/20.500.12110/paper_09258388_v211-212_nC_p41_Povolo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Composition effects
Friction
Internal friction
Pendulums
Relaxation processes
Temperature measurement
Thermal effects
Boltzmanns constant
Inertia
Interstitials
Snoek relaxation
Niobium compounds
spellingShingle Composition effects
Friction
Internal friction
Pendulums
Relaxation processes
Temperature measurement
Thermal effects
Boltzmanns constant
Inertia
Interstitials
Snoek relaxation
Niobium compounds
Povolo, Francisco
Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content
topic_facet Composition effects
Friction
Internal friction
Pendulums
Relaxation processes
Temperature measurement
Thermal effects
Boltzmanns constant
Inertia
Interstitials
Snoek relaxation
Niobium compounds
description It is normally assumed in the literature that the Snoek relaxation in b.c.c. metals leads to internal friction peaks of the Debye type at very low interstitial contents. By means of a new measuring technique, however, it is shown that this is not generally the case. This technique allows simultaneous measurement of the internal friction vs. the temperature and of its derivatives with respect to the temperature and frequency. The data indicate that a distribution of relaxation times is present even for concentrations of a few hundred atomic parts per million. Some results for the Snoek relaxation in niobium are discussed in detail, showing that the parameters of the distribution change with the concentration of interstitials and the temperature. © 1994.
author Povolo, Francisco
author_facet Povolo, Francisco
author_sort Povolo, Francisco
title Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content
title_short Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content
title_full Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content
title_fullStr Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content
title_full_unstemmed Analysis of the Snoek relaxation in niobiumoxygen with low interstitial content
title_sort analysis of the snoek relaxation in niobiumoxygen with low interstitial content
publishDate 1994
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09258388_v211-212_nC_p41_Povolo
http://hdl.handle.net/20.500.12110/paper_09258388_v211-212_nC_p41_Povolo
work_keys_str_mv AT povolofrancisco analysisofthesnoekrelaxationinniobiumoxygenwithlowinterstitialcontent
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