摘要: A new method for producing dense compacts of titanium diboride is described. Thisapproach combines reaction synthesis with a high velocity forging step to achieve densification and near-net shape. By combining synthesis and densif... 展开 A new method for producing dense compacts of titanium diboride is described. Thisapproach combines reaction synthesis with a high velocity forging step to achieve densification and near-net shape. By combining synthesis and densification, titanium diboride disks with over 96 pct of the theoretical density were produced. The highly exothermic synthesis reaction between titanium and boron produces temperatures of approximately 3000 K, at which the material is ductile and forgeable in a high-speed machine. The mechanical properties (quasi-static and dynamic) of reaction-synthesized/dynamically compacted titanium diboride are determined and compared with that of conventionally hot-pressed material. Production of high-temperature refractory materials by conventional powder- 收起