Characterization of ceramic composites and of their constituants: precursors, fibers and interphases Marc Monthioux, Didier Cojean, Osmin Delverdier, Philippe Le Coustumer and Véronique Madigou Microsc. Microanal. Microstruct., 2 1 (1991) 47-57 DOI: 10.1051/mmm:019910020104700