レーザー回折・散乱法における最適屈折率の推定法

ファインセラミックス原料粉体の場合

抄録

In the field of ceramics, the particle size distribution of submicron powders has been measured by using many kinds of equipment which are based on the different measuring principles. However, at present, laser diffraction and scattering method is the most popular method in particle size analysis. Though this method is good for operation, the refractive index of a particle is necessary to calculate the size distribution. If the refractive index is not considered in the calculation, it will not be possible to obtain proper results. This is the weakest point of the laser diffraction and scattering method for the measurement of an unknown sample.
In this study, a method for the estimation of the optimum refractive index was established by a simple arrangement of the data, and the accuracy of the results was improved.