Temperature-dependent structural heterogeneity in calcium silicate liquids

Description:

This article discusses temperature-dependent structural heterogeneity in calcium silicate liquids.

Creator(s):
Creation Date: December 7, 2010
Partner(s):
UNT College of Engineering
Collection(s):
UNT Scholarly Works
Usage:
Total Uses: 58
Past 30 days: 6
Yesterday: 0
Creator (Author):
Benmore, Chris J.

Argonne National Laboratory

Creator (Author):
Weber, J. K. R.

Argonne National Laboratory; Materials Development, Inc.

Creator (Author):
Wilding, Martin C.

Aberystwyth University

Creator (Author):
Du, Jincheng

University of North Texas

Creator (Author):
Parise, John B.

Stony Brook University

Publisher Info:
Publisher Name: American Physical Society
Place of Publication: [College Park, Maryland]
Date(s):
  • Creation: December 7, 2010
Description:

This article discusses temperature-dependent structural heterogeneity in calcium silicate liquids.

Degree:
Note:

Copyright 2010 American Physical Society. The following article appeared in Physical Review B, 82:22, http://link.aps.org/doi/10.1103/PhysRevB.82.224202

Note:

Abstract: X-ray diffraction measurements performed on aerodynamically levitated CaSiO3 droplets have been interpreted using a structurally heterogeneous liquid-state model. When cooled, the high-temperature liquid shows evidence of the polymerization of edge shared Ca octahedra. Diffraction isosbestic points are used to characterize the polymerization process in the pair-distribution function. This behavior is linear in the high-temperature melt but exhibits rapid growth just above the glass transition temperature around 1.2Tg. The heterogeneous liquid interpretation is supported by molecular-dynamics simulations which show the CaSiO3 glass has more edge-shared polyhedra and fewer corner shared polyhedra than the liquid model.

Physical Description:

6 p.

Language(s):
Subject(s):
Keyword(s): calcium carbonate | calcium silica | x-ray diffraction
Source: Physical Review B, 2010, College Park: American Physical Society
Partner:
UNT College of Engineering
Collection:
UNT Scholarly Works
Identifier:
  • DOI: 10.1103/PhysRevB.82.224202
  • ARK: ark:/67531/metadc107770
Resource Type: Article
Format: Text
Rights:
Access: Public
Citation:
Publication Title: Physical Review B
Volume: 82
Issue: 22
Pages: 6
Peer Reviewed: Yes