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Fourier transform infrared analysis of ceramic powders: Quantitative determination of alpha, beta, and amorphous phases of silicon nitride

Published online by Cambridge University Press:  31 January 2011

T. K. Trout ,
J. M. Bellama ,
F. E. Brinckman  and
R. A. Faltynek
T. K. Trout
Affiliation:
University of Maryland, Department of Chemistry and Biochemistry, College Park, Maryland 20740
J. M. Bellama
Affiliation:
University of Maryland, Department of Chemistry and Biochemistry, College Park, Maryland 20740
F. E. Brinckman
Affiliation:
National Bureau of Standards, Ceramics Division, Gaithersburg, Maryland 20899
R. A. Faltynek
Affiliation:
National Bureau of Standards, Ceramics Division, Gaithersburg, Maryland 20899
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Abstract

Fourier transform infrared spectroscopy (FT–IR) forms the basis for determining the morphological composition of mixtures containing alpha, beta, and amorphous phases of silicon nitride. The analytical technique, involving multiple linear regression treatment of Kubelka-Munk absorbance values from diffuse reflectance measurements, yields specific percent composition data for the amorphous phase as well as the crystalline phases in ternary mixtures of 0–1% by weight Si3N4 in potassium bromide.

Type
Articles
Information
Journal of Materials Research , Volume 4 , Issue 2 , April 1989 , pp. 399 - 403
Copyright
Copyright © Materials Research Society 1989

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