Abstract
The relations between the effective Debye parameter and lattice strain are investigated on some non-metallic crystalline powders, CoO, Co0.5 Mg0.5O, CoAl2O4, TiO2, CaF2, BaTiO3 and graphite. The effective Debye parameter B eff was determined from the integrated intensities of X-ray diffraction lines with different sin θ/λ-values and the lattice strain, ε, was determined from the half-widths of the diffraction lines. Both B eff and ε increased with increase in grinding time and pressure. B eff showed a relatively sharp increase, but tended to saturation. However, ε increased slowly even after prolonged grinding, and B eff increased with increase in ε. When ε>0.2×10−2, however, B eff tended to a limit. The limiting values of B eff were varied from sample to sample. An attempt was made to explain the changes of B eff and ε with grinding and compression to large shear by the introduction of various defects into the structure. B eff was found to give some information on the deformed structure of crystalline powders.
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Inagaki, M., Furuhashi, H., Ozeki, T. et al. Integrated intensity changes of X-ray diffraction lines for crystalline powders by grinding and compression. Relations between effective Debye parameter and lattice strain. J Mater Sci 8, 312–316 (1973). https://doi.org/10.1007/BF00550149
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DOI: https://doi.org/10.1007/BF00550149