走査型トンネル顕微鏡による微粒子の分散状態の評価(<小特集>粉体小特集)

概要

論文の詳細を見る
Dispersion of magnetic powder was carried out by a wet type bead mill in order to evaluate a dispersion condition of fine particles. The three-dimensional surface condition of magnetic paint film was surveyed by a Scanning Tunneling Microscope (STM). Observation of film by a Scanning Electron Microscope and measurement of glossily were also conducted. By applying the STM, the microscopic dispersion state of fine particles was able to be evaluated because the three dimensional surface condition of magnetic paint film could be obtained quantitatively. So, the evaluation method by STM is superior to that of the glossily or by SEM. From the experimental results of STM, the operational end-point of dispersion was found to be determined by the measurement of power consumption or viscosity of the paint. The STM evaluation method should be adoptable to other fine particles.
社団法人日本材料学会の論文
1991-12-15