Direct Injection Molding of Superstrength Metal Matrix Composites

邮编：9406800 纳米颗粒将与低温合金混合，以形成具有足够流动性的加热浆料，其可以通过使用净成形制造工艺直接模制。 流变铸造和注塑成型的混合体将被应用。 初步的数据是必要的，以检查的基本概念和方法，包括适当的界面颗粒合金性能，推荐的纳米颗粒的合成方法，复合浆料的流动性和相应的热特性。 粉末与合金的比界面面积越大，相间位错线长度越小，复合材料的强度越高。 在第一组实验中，纳米级铁前体材料是低成本的，可商购获得的。 如果成功，拟议的探索性研究的结果可以立即转移到工业界。 这种方法可以提供新的制造、材料和设计选择。 设想的过程将通过低温，高度自动化的制造技术提供具有超强强度的新材料。 ***

9406800 German Nanoparticles will be mixed with low temperature alloys to form a heated slurry with sufficient fluidity that can be directly molded, by using a net-shape manufacturing process. A hybrid of rheocasting and injection molding will be applied. Preliminary data are necessary to check the basic concepts and the approach, including the proper interfacial particle-alloy properties, the recommended synthesis method for nanoparticles, the fluidity and corresponding thermal characteristics of the composite slurry. The strength of the resulted composite material should improve it the specific powder-alloy interfacial area is larger, and the dislocation line length between phases is smaller. In the first set of experiments, nanoscale iron precursor materials are low- cost, commercially available. If successful, the results of the proposed exploratory research could be transferred immediately to industry. The approach could offer new manufacturing, materials and design options. The envisioned process will potentially provide new materials with superstrengths via a low temperature, highly automated manufacturing technology. ***