Hostname: page-component-7b7567c8c-2rsb6 Total loading time: 0 Render date: 2026-11-12T07:42:13.066Z Has data issue: false hasContentIssue false
  • English
  • Français

Quantitative XRD Analysis of Advanced Coal Combustion Solid Residuals by the RIR Method

Published online by Cambridge University Press:  06 March 2019

J.A. Bender,
J.K. Solem,
G.J. McCarthy,
M.C. Oseto and
J.E. Knell
J.A. Bender
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
J.K. Solem
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
G.J. McCarthy
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
M.C. Oseto
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
J.E. Knell
Affiliation:
Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
Get access

Abstract

Reference intensity ratios (RIRs) with zincite (ZnO) as the internal standard have been measured and calculated for key phases in coal combustion solid residuals. Detailed comparisons of measured and calculated corundum RIRs (converted from zincite RIRs), and literature I/Ic values led to the conclusion that for best results, laboratory measured values must be used. Using measured zincite RIRs and standard mixtures of important crystalline phases, a protocol for routine semi-quantitative analysis has been developed. The need to grind under ethanol to minimize decomposition of hydrated phases was demonstrated. An unusual procedure employing mixed peak and integrated intensities in the RIR of one key phase, ettringite (Ca6Al2(SO4)3(OH)12-26H2O), has been adopted for this protocol.

Information

Type
VI. Whole Pattern Fitting, Phase Analysis by Diffraction Methods
Information
Advances in X-Ray Analysis , Volume 36: Forty-First Annual Conference on Applications of X-ray Analysis, August 3-7, 1992 , 1992, pp. 343 - 353
Copyright
Copyright © International Centre for Diffraction Data 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

1. Klug, H. P. and Alexander, L. E., X-ray Diffraction Procedures for Crystalline and Amorphous Materials. Wiley Interscience, New York (1974).Google Scholar
2. Chung, F. H., J. Appl. Cryst. 7: 519-526(1974).Google Scholar
3. Davis, B. L., Reference Intensity Method of Quantitative X-ray Diffraction. 2nd Edition, South Dakota School of Mines, Rapid City (1938).Google Scholar
4. Thedchanamoorthy, A. and McCarthy, G. J., Adv. X-ray Anal., 32: 569-576(1989); G.J. McCarthy and J.K, Solem, Adv. X-Rav Anal. 34: 387-394(1991).Google Scholar
5. Hassett, D. J., McCarthy, G. J. Kumarathasan, P., and Pflughoeft-Hassett, D. F., Mater. Res. Bull. 25: 1347-1354(1990).Google Scholar
6. Solem, J. K. and McCarthy, G. J., in Advanced Cementitious Systems. Mat. Res. Soc. Symp. Proc. Vol. 245, 71-79(1992).Google Scholar
7.JADE+, Version 2.0 Materials Data Inc., Livermore, CA, U.S.A., (1992).Google Scholar
8. Smith, K. L. and Smith, D. K., MICRO-POWD, Version 2.2, Materials Data Inc., Livermore, CA, U.S.A. (1991).Google Scholar
9. Hubbard, C. R. and Smith, D. K., Adv. X-ray Anal. 20: 27-39(1977).Google Scholar
10. Davis, B. L., Smith, D. K., and Holomany, M. A., Powd. Diff. 4: 201-205(1989).Google Scholar
11. Dyakonov, J., Mischenko, K., Hering, A., et. al., Powd. Diff. 7: 137-141(1992).Google Scholar
12. Thedchanamoorthy, A., Thesis, M. S., North Dakota State University, 1989.Google Scholar
13. McCarthy, G. J., Gehringer, R. C., Smith, D. K., Injaian, V. M., Pfoertsch, D. E. and Kaoel, R. L., Adv. X-Ray Anal. 24: 253-264(1981).Google Scholar
14. Gehringer, R. C., McCarthy, G. J., Garvey, R. G., and Smith, D. K., Adv. X-Ray Anal. 26: 119–128(1983).Google Scholar
15. Jenkins, R. and R.F., Paolini, Norelco Reporter, 21: 9-16(1974).Google Scholar
16. Jenkins, R. and Schreiner, W. N., Powd. Diff. 4:74–100(1989).Google Scholar