Structural Change of Calcium Silicate, a New Type of Desulfurization Material, Studied by Si K Edge XAFS T. Tanaka, S. Yoshida, R. Kanai, T. Shishido, H. Hattori, Y. Takata et N. Kosugi J. Phys. IV France, 7 C2 (1997) C2-913-C2-914 DOI: 10.1051/jp4:1997278