Shock Compression Processing of Materials

提出了对粉体材料加工的研究 通过高压冲击压缩 放热化学 在粉末混合物中诱导有助于烧结的反应， 冲击波脉冲通过混合物。 这个过程是 适用于几种金属系统，包括那些努力 对粉末固结的影响已被证明是困难的。 金属间合金如铝化钛和镍- 铝化物探索，以确定这种类型的影响， 处理他们的财产。 扩大规模的可行性 在工程应用中，这些冲击引起的反应， 计划的一部分。 最终目标是建立 固结过程，再加上化学合成 反应，以获得预测能力。 这项研究是 在新墨西哥州理工大学表演（高压冲击，按比例放大）， 洛斯阿拉莫斯（建模），桑迪亚（冲击波设施，建模）， 和加州理工学院（冲击固结 理论）。 这是一个很好的研究领域，美国是 落后的国际竞争。 这项研究有可能 具有生产新材料的能力。 需要对过程变量进行建模以允许缩放 到更大的尺寸和更复杂的形状。

Proposed is research on the processing of powder materials by high-pressure shock compression. Exothermic chemical reactions to aid sintering are induced in a powder mixture by shock wave pulses passing through the mixture. This process is applied to several metallic systems including those where efforts on powder consolidation have proven to be difficult. Intermetallic alloys such as titanium aluminide and nickel- aluminide are explored to determine the effects of this type of processing on their properties. The feasibility of scaling up these shock-induced reactions for engineering applications is part of the program. The ultimate aim is to model the consolidation process, coupled with the synthesis by chemical reactions, to gain predictive capabilities. The research is performed at New Mexico Tech. (high-pressure impact, scale-up), Los Alamos (modeling), Sandia (shock-wave facilities, modeling), and California Institute of Technology (shock-consolidation theory). This is an excellent area of research, where the U.S. is lagging international competition. The research has potentially high pay-off with the capability to produce new materials. Modeling of the process variables is needed to permit the scaling up of the process to larger sizes and more complex shapes.