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Title: The thermodynamic form of peridynamics with application to phase transformations.

Abstract

Abstract not provided.

Authors:
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1378262
Report Number(s):
SAND2016-8326C
646904
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the 24th International Congress of Theoretical and Applied Mechanics held August 21-26, 2016 in Montreal, Quebec, Canada.
Country of Publication:
United States
Language:
English

Citation Formats

Silling, Stewart A. The thermodynamic form of peridynamics with application to phase transformations.. United States: N. p., 2016. Web.
Silling, Stewart A. The thermodynamic form of peridynamics with application to phase transformations.. United States.
Silling, Stewart A. 2016. "The thermodynamic form of peridynamics with application to phase transformations.". United States. doi:. https://www.osti.gov/servlets/purl/1378262.
@article{osti_1378262,
title = {The thermodynamic form of peridynamics with application to phase transformations.},
author = {Silling, Stewart A.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8
}

Conference:
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  • EMF measurements of oxygen fugacities as a function of stoichiometry in YBa/sub 2/Cu/sub 3/O/sub x/ were made in the temperature range 650-750/degree/C by means of an oxygen titration technique with a ZrO/sub 2/ electrolyte doped with Y/sub 2/O/sub 3/. From plots of equilibrium oxygen pressures versus x, no sign of a change in curvature or discontinuity was observed at an oxygen stoichiometry of x = 6.5 where copper is divalent. A change in slope was observed when x /approximately/6.3. The EMF measurements were extended to an oxygen stoichiometry of x = 6.15; after slow cooling to room temperature, x-ray examinationmore » of the samples indicated that the original orthorhombic phase was completely transformed to tetragonal. A rapid increase in the partial molar entropy of oxygen, ..delta../ovr S//sub O/sub 2//, was found in the composition range x = 6.3 to 6.15. The increase in ..delta../ovr S//sub O/sub 2// values appears to reflect the differences between distributions of oxygen atoms and vacancies in the relatively disordered tetragonal structure and the more ordered orthorhombic structure. The results to date indicate that the important orthorhombic structure can exist over an extended oxygen composition range, namely, /approximately/6.3-7.0 at temperatures in the range of 650-750/degree/C. 10 refs., 5 figs., 1 tab.« less
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  • Abstract not provided.