Interfaces in metamict titanite: the macroscopic mechanical properties after stepwise annealing

Beirau, T. and Guglielmi, P. and Paulmann, C. and Schneider, G.A. and Groat, L.A. and Malcherek, T. and Salje, E. K. H. and Bismayer, U. (2013) Interfaces in metamict titanite: the macroscopic mechanical properties after stepwise annealing. Phase Transitions, 86 (1). pp. 23-32. ISSN 0141-1594 DOI https://doi.org/10.1080/01411594.2012.694433

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Abstract

Elastic material properties of metamict titanite (sample E2312) during thermally induced stepwise recrystallization are measured using nanoindentation. Changes of the elastic modulus (E) and the hardness (H) are related to increasing long-range order and vanishing amorphous interface areas. Metamict titanite shows H and E values close to titanite glass. H decreases on annealing until ca. 950 K to 9.08 GPa and increases at higher temperatures, while E increases continuously on annealing up to ca. 168.4 GPa at 1220 K. Crystalline titanite from Rauris shows strong anisotropy and H and E values are clearly larger than those of E2312.

Item Type:	Article
Uncontrolled Keywords:	2012AREP; IA65;
Subjects:	03 - Mineral Sciences
Divisions:	03 - Mineral Sciences
Journal or Publication Title:	Phase Transitions
Volume:	86
Page Range:	pp. 23-32
Identification Number:	https://doi.org/10.1080/01411594.2012.694433
Depositing User:	Sarah Humbert
Date Deposited:	26 Jan 2013 11:30
Last Modified:	23 Jul 2013 10:05
URI:	http://eprints.esc.cam.ac.uk/id/eprint/2662

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