石炭フライアッシュ粒子のキャラクタリゼーション

抄録

Secondary ion mass spectrometer, X-ray microanalyzer and scanning electron microscope have been used to investigate the surface characteristics and depth profile of coal fly ash. Coal fly ash particles were size-fractionated, magnetically separated, and mounted in the indium metal sample holder (6 mm diam., 2 mm thickness). Large particles (ca.100 μm diam. )were analyzed to facilitate both particle handling and the characterization of individual particles using surface microprobe techniques. Results on ion microprobe depth profiles and X-ray image of elements on sputtered surfaces of fly ash particle show fairly good agreement.