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Shock-wave Synthesis of Titanium Diboride in Copper Matrix and Compaction of TiB_2-Cu Nanocomposites

机译:铜基质中钛二硼化钛的冲击波合成及Tib_2-Cu纳米复合材料的压实

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TiB_2-Cu composites in a nanostructured state are candidates for high-strength conductive and erosion-resistant materials. In this work, we studied formation of nanostructured TiB_2-Cu composites under shock wave conditions. We investigated the influence of preliminary mechanical activation (MA) of Ti-B-Cu powder mixtures on the peculiarities of the reaction between Ti and B under shock wave. In the MA-ed mixture the reaction proceeded completely while in the non-activated mixture the reagents remained along with the product - titanium diboride. The size of titanium diboride particles in the central part of the compact was 100-300 nm. This research shows that shock wave synthesis in mechanically activated powder mixtures with simultaneous compaction of the composite is a promising way to materials with submicron and nanostructures.
机译:纳米结构状态下的Tib_2-Cu复合材料是高强度导电和耐腐蚀材料的候选物。在这项工作中,我们在冲击波条件下研究了纳米结构Tib_2-Cu复合材料。我们调查了Ti-B-Cu粉末混合物初步机械活化(MA)对冲击波下Ti和B之间反应的特性的影响。在MA-ED混合物中,反应完全进行,同时在未激活的混合物中,试剂与产物 - 钛二硼化物一起保持。紧凑型中心部分中的钛的二硼化钛颗粒的尺寸为100-300nm。该研究表明,机械活化粉末混合物中的冲击波合成具有复合材料的同时压实是与亚微米和纳米结构的材料的有希望的方式。

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