An in situ neutron diffraction study of cation disordering in synthetic qandilite Mg2TiO4 at high temperatures

American Mineralogist

Volumn 88, Issue 5, 2003, Pages 860-865

  O'Neill, Hugh St C ^a   Redfern, Simon A T ^a,b   Kesson, Sue ^a   Short, Simine ^c  

^a AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^c ARGONNE NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BINARY ALLOYS; POSITIVE IONS; TEMPERATURE DISTRIBUTION; URANIUM ALLOYS;

CATION DISORDERING; CATION DISTRIBUTIONS; IN-SITU NEUTRON DIFFRACTION; OCTAHEDRALLY-COORDINATED CATIONS; TEMPERATURE DEPENDENCE; TEMPERATURE DEPENDENT; TETRAHEDRAL SITES; TIME-OF-FLIGHT NEUTRON POWDER DIFFRACTION;

TITANIUM;

CATION; CRYSTAL STRUCTURE; MINERAL SYNTHESIS; QANDILITE; SPINEL; THERMODYNAMICS;

EID: 0038608201     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am-2003-5-615     Document Type: Article

References (18)

1. Akimoto, S. and Syono, Y. (1967) High-pressure decomposition of some titanate spinels. The Journal of Chemical Physics, 47, 1813-1817.
2. 4, from the Qala-Dizeh region, NE Iraq. Mineralogical Magazine, 49, 739-744.
3. 4) from in-situ neutron structure refinements. American Mineralogist, 83, 1092-1099.
4. Hazen, R.M., Downs, R.T., Finger, L.W., and Ko, J. (1993) Crystal chemistry of ferromagnesian silicate spinels: evidence for Mg-Si disorder. American Mineralogist, 78, 1320-1323.
5. Jorgensen, J.D., Faber, J., Carpenter, J.M., Crawford, R.K., Haumann, J.R., Hitterman, R.L., Kleb, R., Ostrowski, G.E., Rotella, F.J., and Worlton, T.G. (1989) Electronically focussed time-of-flight powder diffractometers at the intense pulsed neutron source. Journal of Applied Crystallography, 22, 321-333.
6. 17O MAS NMR and Rietveld refinement of X-ray diffraction data. American Mineralogist, 80, 885-896.
7. Navrotsky, A. (1977) Calculation of effect of cation disorder on silicate spinel phase boundaries. Earth and Planetary Science Letters, 33, 437-442.
8. 4. Physics and Chemistry of Minerals, 20, 541-555.
9. O'Neill, H.S.C. and Navrotsky, A. (1983) Simple spinels: crystallographic parameters, cation radii, lattice energies and cation distribution. American Mineralogist, 68, 181-194.
10. O'Neill, H.S.C. and Navrotsky, A. (1984) Cation distributions and thermodynamic properties of binary spinel solid solutions. American Mineralogist, 69, 733-753.
11. Oktyabrsky, R.A., Shcheka, S.A., Lennikov, A.M., and Afanasyeva, T.B. (1992) The 1st occurrence of qandilite in Russia. Mineralogical Magazine, 56, 385-389.
12. 4 at temperatures up to 1273 K. American Mineralogist, 76, 1455-1458.
13. 4 spinel up to 1600 °C from in situ neutron diffraction. American Mineralogist, 84, 299-310.
14. 4). Materials Research Bulletin, 31, 355-360.
15. 2. Journal of Solid State Chemistry, 55, 165-180.
16. 5 by time-of-flight neutron powder diffraction. Acta Crystallographica, B45, 542-549.
17. 2 in air. American Journal of Science, 267, 463-479.
18. Young, R.A., Sakthivel, A., Moss, T.S., and Paiva-Santos, C.O. (1995) DBWS-9411, an upgrade of the DBWS*.* programs for Rietveld refinement with PC and mainframe computers. Journal of Applied Crystallography, 28, 366-367.