Hostname: page-component-8448b6f56d-sxzjt Total loading time: 0 Render date: 2024-04-23T22:04:03.763Z Has data issue: false hasContentIssue false

Rietveld quantitative X-ray diffraction analysis of NIST fly ash standard reference materials

Published online by Cambridge University Press:  10 January 2013

Ryan S. Winburn
Affiliation:
Center for Main Group Chemistry, Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
Dean G. Grier
Affiliation:
Center for Main Group Chemistry, Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
Gregory J. McCarthy
Affiliation:
Center for Main Group Chemistry, Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105
Renee B. Peterson
Affiliation:
Center for Main Group Chemistry, Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105

Abstract

Rietveld quantitative X-ray diffraction analysis of the fly ash Standard Reference Materials (SRMs) issued by the National Institute of Standards and Technologies was performed. A rutile (TiO2) internal standard was used to enable quantitation of the glass content, which ranged from 65% to 78% by weight. The GSAS Rietveld code was employed. Precision was obtained by performing six replicates of an analysis, and accuracy was estimated using mixtures of fly ash crystalline phases and an amorphous phase. The three low-calcium (ASTM Class F) fly ashes (SRM 1633b, 2689 and 2690) contained four crystalline phases: quartz, mullite, hematite, and magnetite. SRM 1633b also contained a detectable level of gypsum, which is not common for this type of fly ash. The high-calcium (ASTM Class C) fly ash, SRM 2691, had eleven crystalline phases and presented a challenge for the version of GSAS employed, which permits refinement of only nine crystalline phases. A method of analyzing different groups of nine phases and averaging the results was developed, and tested satisfactorily with an eleven-phase simulated fly ash. The results were compared to reference intensity ratio method semiquantitative analyses reported for most of these SRMs a decade ago.

Type
Technical Articles
Copyright
Copyright © Cambridge University Press 2000

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.)

References

ASTM (1987). Standard Specification C 618 and Standard Method C 311, Annual Book of ASTM Standards Vol. 04.02 [American Society for Testing and Materials, Philadelphia, PA (1987)].Google Scholar
Bender, J.A., Solem, J.K., McCarthy, G.J., Oseto, M.C., and Knell, J.E. (1993). “Quantitative XRD Analysis of Advanced Coal Combustion Solid Residuals by the RIR Method,” Adv. X-Ray Anal. 36, 343353.Google Scholar
Bish, D.L., and Howard, S.A. (1988). “Quantitative Phase Analysis Using the Rietveld Method,” J. Appl. Crystallogr. 21, 8691.Google Scholar
Brindley, G.W. (1945). “The Effect of Grain of Particle Size on X-Ray Reflections from Mixed Powders and Alloys, Considered in Relation to the Quantitative Determination of Crystalline Substances by X-Ray Methods,” Philos. Mag. 3, 347369.CrossRefGoogle Scholar
Cline, J.P., and Von Dreele, R.B. (1998). “The Certification of SRMs 1878a and 1879a for Analysis of Quartz and Cristobalite Content,” presented at The Denver X-Ray Conference, Colorado Springs, CO (unpublished).Google Scholar
Davis, B.L., Jenkins, R., McCarthy, G.J., Smith, D.K., and Wong-Ng, W. (1997). “Specimen Preparation in X-ray Diffraction,” in Preparation of Specimens for X-Ray Fluorescence and Diffraction Analysis, edited by V.E. Buhrke, R. Jenkins, and D.K. Smith (Wiley-VCH, New York), pp. 123–170.Google Scholar
Hill, R.J. (1983). “Calculated X-ray Powder Diffraction Data for Phases Encountered in Lead/Acid Battery Plates,” J. Power Sources 9, 5571.Google Scholar
Hill, R.J. (1991). “Expanded Use of the Rietveld Method in Studies of Phase Abundance in Multiphase Mixtures,” Powder Diffr. 6, 7477.CrossRefGoogle Scholar
Hill, R.J., and Howard, C.J. (1987). “Quantitative Phase Analysis from Neutron Powder Diffraction Data using the Rietveld Method,” J. Appl. Crystallogr. 20, 467474.CrossRefGoogle Scholar
Inorganic Crystal Structure Database (1999). FIZ Karlsruhe and the GMELIN Institute, Frankfurt, Eggenstein-Leopoldshafen, Germany.Google Scholar
JADE+ (1998). Materials Data Incorporated, Livermore, CA.Google Scholar
Larson, A.C., and Von Dreele, R.B. (1994). Los Alamos National Laboratory Report No. LAUR 86-748.Google Scholar
McCarthy, G.J. (1988). “X-Ray Powder Diffraction for Studying the Mineralogy of Fly Ash ,” in Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal IV, edited by McCarthy, G.J., Glasser, F.P., Roy, D.M., and Hemmings, R.T. [Mater. Res. Soc. Symp. Proc. 113, 7586].CrossRefGoogle Scholar
McCarthy, G.J.and Johansen, D.M. (1988). “X-Ray Diffraction Study of NBS Fly Ash Standard Reference Materials,” Powder Diffr. 3, 156161.CrossRefGoogle Scholar
McCarthy, G.J., Johansen, D.M., Steinwand, S.J., and Thedchanamoorthy, A. (1988). “X-Ray Diffraction Analysis of Fly Ash,” Adv. X-Ray Anal. 31, 331342.Google Scholar
McCarthy, G.J., and Thedchanamoorthy, A. (1989). “Semi-Quantitative X-Ray Diffraction Analysis of Fly Ash by the Reference Intensity Ratio Method,” in Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal V, edited by Hemmings, R.T., Berry, E.E., McCarthy, G.J., and Glasser, F.P. [Mater. Res. Soc. Symp. Proc. 136, 6776].CrossRefGoogle Scholar
McCarthy, G.J., Solem, J.K., Manz, O.E., and Hassett, D.J. (1990). “Use of a Database of Chemical, Mineralogical and Physical Properties of North American Fly Ash to Study the Nature of Fly Ash and Its Utilization as a Mineral Admixture in Concrete,” in Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal VI, edited by Day, R.L.and Glasser, F.P. [Mater. Res. Soc. Symp. Proc. 178, 333].CrossRefGoogle Scholar
McCarthy, G.J.and Solem, J.K. (1991). “X-Ray Diffraction Analysis of Fly Ash. II. Results,” Adv. X-Ray Anal. 34, 387394.Google Scholar
McClune, W.F. (Editor), Powder Diffraction File, International Centre for Diffraction Data, Newtown Square, PA (1998).Google Scholar
McMurdie, H.F., Morris, M.C., Evans, E.H., Paretzkin, B., and Wong-Ng, W. (1986). “Methods of Producing Standard X-Ray Diffraction Powder Patterns,” Powder Diffr. 1, 4043.CrossRefGoogle Scholar
NIST SRMP (1999). SRM 1633b, “Constituent Elements in Coal Fly Ash;” SRM 2689, 2690 and 2691, “Coal Fly Ashes;” SRM 676, “Alumina Internal Standard for Quantitative Analysis by X-Ray Powder Diffraction;” SRM 1976, “Instrument Sensitivity Standard for X-Ray Powder Diffraction.” National Institute of Standards and Technology, Standard Reference Materials Program, Room 204, Building 202, 100 Bureau Drive, Gaithersburg, MD 20899-2322 USA; http://ts.nist.gov/srm.Google Scholar
O’Connor, B.H., and Raven, M.D. (1988). “Application of the Rietveld Refinement Procedure in Assaying Powdered Mixtures,” Powder Diffr. 3, 26.CrossRefGoogle Scholar
Rietveld, H.M. (1969). “A Profile Refinement Method for Nuclear and Magnetic Structures,” J. Appl. Crystallogr. 2, 6571.Google Scholar
Taylor, J.C. (1991). “Computer Programs for Standardless Quantitative Analysis of Minerals Using the Full Powder Diffraction Profile,” Powder Diffr. 6, 29.CrossRefGoogle Scholar
Taylor, J.C., and Aldridge, L.P. (1993). “Phase Analysis of Portland Cement by Full Profile Standardless Quantitative X-Ray Diffraction-Accuracy and Precision,” Adv. X-Ray Anal. 36, 309314.Google Scholar
Thompson, P., Cox, D.E., and Hastings, J.B. (1987). “Rietveld Refinement of Debye–Scherrer Synchrotron X-Ray Data from Al2O3,” J. Appl. Crystallogr. 20, 7983.CrossRefGoogle Scholar
Werner, P.-E., Salome, S., and Malmros, G. (1979). “Quantitative Analysis of Multicomponent Powders by Full-Profile Refinement of Guinier-Hägg X-Ray Film Data,” J. Appl. Crystallogr. 21, 107109.Google Scholar
Winburn, R.S., Grier, D.G., and McCarthy, G.J. (1997). “Quantitative XRD Analysis of Coal Combustion By-Products by the Rietveld Method I. Test Mixtures,” 46th Denver X-Ray Conference, 4–8 August 1997 (abstracts).Google Scholar
Winburn, R.S. (1999). “Development of the Rietveld Method for Quantitative X-Ray Diffraction Analysis of Complex Mixtures Including Coal Combustion By-Products,” Ph.D. dissertation, North Dakota State University, Fargo.Google Scholar
Winburn, R.S., Lerach, S.L., Jarabek, B.R., Wisdom, M.A., Grier, D.G., and McCarthy, G.J. (2000). “Quantitative XRD Analysis of Coal Combustion By-Products by the Rietveld Method. Testing with Standard Mixtures,” Adv. X-Ray Anal. 42, 387396.Google Scholar