Metal Matrix Composites by Decomposition Sintering of Titanium Hydride.
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS
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Titanium hydride powders were pressure sintered in vacuum, and spontaneously decomposed, giving compacts of titanium metal. Under these conditions lower temperatures were required for sintering than are normally needed for titanium metal powders. The method, therefore, was investigated for its applicability to titanium matrix composites in order to minimize chemical reactivity problems generally encountered in processing materials of this kind. Models containing tungsten and stainless steel wire reinforcement were synthesized this way, and some tensile properties were determined. To this extent, process feasibility is indicated. An important aspect is matrix ductility, maintained by impurity control, as needed for titanium. The present models are seen to be ductile fiber-ductile matrix systems. Author
- Laminates and Composite Materials