High Strength, High Toughness In Situ Ceramic Composites.
Quarterly progress rept. 1 Nov 95-31 Jan 96,
QUEST INTEGRATED INC KENT WA
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The thermal analysis, both differential thermal analysis DTA and thermalgravimetric analysis TGA, of the 3TiC2Si composition 32 and 3TiC3Si composition 33 compositions showed that solid state displacement reactions start above 1000 deg C in TiC-Si system. A series of pressureless sintering experiments were carried out to determine the extent of reaction in 32 and 33 compositions at 1OOO deg C, 1300 deg C, and 1500 deg C under argon gas atmosphere. The powder mixtures were prepared by wet mixing technique as explained in the first progress report. Small 0.5 inches diameter pellet shaped samples were sintered for two hours at the predetermined temperatures. The sintered samples were analyzed by X-ray diffraction. The phases detected at each temperature are shown in Table 1. MM
- Ceramics, Refractories and Glass
- Laminates and Composite Materials