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

Journal
Phase transitions  
Volume
86
Issue
1
Start Page
23
End Page
32
Citation
Phase Transitions 86 (1): 23-32 (2013)
Publisher DOI
10.1080/01411594.2012.694433
Scopus ID
2-s2.0-84881279645
Publisher
Taylor & Francis
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 longrange 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 1220K. Crystalline titanite from Rauris shows strong anisotropy and H and E values are clearly larger than those of E2312. 1029-0338.
Subjects
Metamict
Nanoindentation
Synchrotron XRD
Titanite
DDC Class
540: Chemie
More Funding Information
Deutsche Forschungsgemeinschaft (DFG)