| Popis: |
A new type of ceramic matrix composite using plane webs or unidirectional sheets of the Si-Ti-C-O fiber, which can be obtained from polytitanocarbosilane, was successfully fabricated by the hot-pressing method at 1800-1950 C. The effects of the difference in the composition, the oxygen content of the original fiber, and the hot-pressing temperature on properties of this composite were examined. These composites, which retain almost the same mechanical strength even at 1400 C in air as that at room temperature and have excellent fracture toughness, can be expected to be available for the development of advanced ceramic materials with high performance. 9 refs. |
