EVALUATION OF CRYSTALLITE SIZE IN POLYCRYSTALLINE NACL SPECIMENS BY A SPINNER-SCAN METHOD

摘要

It has been proposed1 that the effective crystallite diameter of micrometer order in powder samples can be estimated by a spinner-scan method with a powder X-ray diffractometer. In this study, the method is applied to evaluation of crystallite size in sintered bodies of polycrystalline NaCl.Pulverized NaCl powder passed through a 20 (am-mesh sieve was divided and uniaxially pressed at 17 MPa to form disks 25 mm in diameter.