Structural variations in the brownmillerite series Ca2(Fe2-xAlx)O5: Single-crystal X-ray diffraction at 25 °C and high-temperature X-ray powder diffraction (25 °C ≤ T ≤ 1000 °C)

American Mineralogist

Volumn 89, Issue 2-3, 2004, Pages 405-420

  Redhammer, Günther J ^a   Tippelt, Gerold ^b   Roth, Georg ^a   Amthauer, Georg ^b  

^a RWTH AACHEN UNIVERSITY   (Germany)

^b UNIVERSITY OF SALZBURG   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

ATOMS; CALCIUM COMPOUNDS; POSITIVE IONS; SINGLE CRYSTALS; X RAY DIFFRACTION; X RAY POWDER DIFFRACTION;

HIGH TEMPERATURE; HIGH TEMPERATURE X RAY POWDER DIFFRACTION; SINGLE CRYSTAL X-RAY DIFFRACTION; STRUCTURAL PARAMETER; STRUCTURAL VARIATIONS; TETRAHEDRAL BONDS; TETRAHEDRAL SITES; UNIT CELL PARAMETERS;

IRON COMPOUNDS;

BROWNMILLERITE; CRYSTAL STRUCTURE; MINERAL SYNTHESIS;

EID: 1642355353     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am-2004-2-322     Document Type: Article

References (28)

1. 3. Cement and Concrete Research, 2, 291-297.
2. 3: A high-temperature thermal expansion standard. High Temperature-High Pressure, 16, 127-135.
3. 5. Materials Research Bulletin, 34, 303-314.
4. Bertaut, E.F., Blum, P., and Sagnières, A. (1959) Structure du ferrite bicalcique et de la brownmillerite. Acta Crystallographica, 12, 149-159.
5. 5 and its relation to the nuclear electric field gradient at the iron sites. Acta Crystallographica, B26, 1469-1473.
6. 5. Acta Crystallographica, B27, 2311-2315.
7. 5. Acta Crystallographica, B28, 3196-3200.
8. 5. Journal of the American Ceramic Society, 85, 1300-1303.
9. 5. Progress in Solid State Chemistry, 5, 1-26.
10. Hansen, W.C., Brownmiller, L.T. and Bogue, R.H. (1928) Studies on the system calcium oxide-alumina-ferric oxide. Journal of the American Chemical Society, 50, 396-433.
11. Harchand, U.S., Vishwamitter, B., and Chandra, K. (1984) A study of the iron phase and its hydration behaviour in high alumina cement. Cement and Concrete Research, 14(1), 19-24.
12. 3+). European Journal of Mineralogy, 12, 129-135.
13. 5 mittels Röntgen- und Neutronenbeugung. European Journal of Mineralogy, 9 Beiheft 2, 147.
14. 5)-A new high pressure phase with the brownmillerite type structure. American Mineralogist, 85, 1061-1065.
15. 3). Journal of Research National Bureau of Standards, 61, 233-245.
16. Rancourt, D.G. and Ping, J.Y. (1991) Voigt-based methods for arbitrary-shape static hyperfine parameter distribution in Mössbauer spectroscopy. Nuclear Instruments and Methods in Physics Research B (NIMB), 58, 85-97.
17. Rancourt, D.G., McDonald, A.M., Lalonde, A.E., and Ping, J.Y. (1993) Mössbauer absorber thickness for accurate site populations in Fe-bearing minerals, American Mineralogist, 78, 1-7.
18. 4 units in crystals. Zeitschrift für Kristallographie, 175, 43-59.
19. Robinson, K., Gibbs, G. V., and Ribbe, P.H. (1971) Quadratic elongation, a measure of distortion in coordination polyhedra. Science, 172, 567-570.
20. Rodriguez-Carvajal, J. (2001) Recent developments of the program FULLPROF. Commission on Powder Diffraction (CPD) Newsletter 26, 12-19: http://www.iucr.org/iucr-top/comm/cpd/Newsletters.
21. Shannon, R.D. and Prewitt, C.T. (1969) Effective ionic radii in oxides and fluorides. Acta Crystallographica, B25, 925-934.
22. Sheldrick, G.M. (1997a) SHELXS-97. Program for crystal structure refinement. University of Göttingen, Germany.
23. Sheldrick, G.M. (1997b) SHELXL97. Program for crystal structure refinement. University of Göttingen, Germany.
24. Smith, D.K. (1962) Crystallographic changes with the substitution of aluminium for iron in dicalcium ferrite. Acta Crystallographica, 15, 1146-1152.
25. Stoe and Cie (1996) X-SHAPE and X-RED: programs for the optimisation of the crystal shape (w.r.t. the merging R-value) and numerical absorption correction.
26. Taylor, H.F.W. (1997) Cement chemistry. Thomas Telford, London, 459 p.
27. Wilson, A.J.C., Ed. (1992) International Tables for Crystallography, vol. C. Mathematical. Physical and Chemical Tables, Kluwer, Dortrecht.
28. th International Symposium on the Chemistry of Cement, Part I, 54-60.