HREM CHARACTERIZATION OF STRUCTURAL CHANGES IN A DEFORMED Σ = 9 (122) GRAIN BOUNDARY IN SILICON J. L. PUTAUX et J. THIBAULT-DESSAUX J. Phys. Colloques, 51 C1 (1990) C1-323-C1-328 DOI: 10.1051/jphyscol:1990151