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

Autor:	Beirau, T., Guglielmi, P., Paulmann, C., Schneider, G.A., Groat, L.A., Malcherek, T., Salje, E.K.H., Bismayer, U.
Předmět:	INTERFACES (Physical sciences) SPHENE ANNEALING of metals SYNCHROTRONS RECRYSTALLIZATION (Metallurgy) NANOINDENTATION tests
Zdroj:	Phase Transitions; Jan2013, Vol. 86 Issue 1, p23-32, 10p
Abstrakt:	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 showsHandEvalues close to titanite glass.Hdecreases on annealing until ca. 950 K to 9.08 GPa and increases at higher temperatures, whileEincreases continuously on annealing up to ca. 168.4 GPa at 1220 K. Crystalline titanite from Rauris shows strong anisotropy andHandEvalues are clearly larger than those of E2312. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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