STRUCTURE AND PROPERTIES OF NANOPHASE TiO2 R.W. SIEGEL, H. HAHN, S. RAMASAMY, L. ZONGQUAN, L. TING and R. GRONSKY J. Phys. Colloques, 49 C5 (1988) C5-681-C5-686 DOI: 10.1051/jphyscol:1988589