Strain induced in yttrium iron garnet by various milling treatments

This paper presents the results of measurements of the changes in strain, as determined from x-ray diffraction line broadening, stored strain energy, particle shape, size and size distribution in samples of yttrium iron garnet powder brought about by a variety of milling treatments. For similar starting material the strain induced by the various milling procedures was found to vary by two orders of magnitude. An example is given of the build-up of strain and the accompanying changes in particle characteristics with milling time.