A simple method for indexing powder diffraction patterns of cubic materials (11): using the d-values of reference

Authors

• ME Kamwaya, Chemistry Department, University of Dar es Salaam PO Box 35061, Dar es Salaam, TanzaniaFollow

Section

Physical Sciences

Abstract

From the d-values (in decreasing order) taken from powder diffraction patterns of the cubic material a variable constant, KQ, which is a multiple of Ʃh₁² where Q = l/d² can be determined. The smallest values of Q give rise to multiples of ones, twos and threes, which correspond to the smallest values of Ʃh₁² for the primitive, bcc, and fcc/diamond Type structures, respectively. Cognance of the lattice types is best accomplished by the ΔQ-criterion, where ΔQ denotes the difference between successive values of Q. Indexing is greatly simplified and the use of rigorous tables is avoided. By use of this method even some discrepancies in hitherto published data can easily be detected.

Recommended Citation

Kamwaya, ME (1999) "A simple method for indexing powder diffraction patterns of cubic materials (11): using the d-values of reference," Tanzania Journal of Science: Vol. 25: Iss. 1, Article 7.
Available at:https://doi.org/10.65085/2507-7961.2389

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This work is licensed under a Creative Commons Attribution 4.0 License.