Preparation of Semiconducting Powder by Ball-milling and Its Characterization( Minor Special Issue on Powder Science)

By aiming at the development of a semiconducting composite in which semiconducting SnO2 particles are uniformly dispersed in glass matrix, fine semiconducting powder was prepared by ball-milling SnO2 powder with a small amount of Sb2O5. Several kinds of ball-milled powder were characterized by the measurement of specific surface area by B.E.T. method, thermal gravimetry, X-ray powder diffraction analysis, X-ray photo spectroscopy and the measurement of DC electric resistance.