铜纳米粉表面性能研究.docVIP

毕业设计（论文） 铜纳米粉表面性能研究 学 生 姓 名 孙 英 学 号 专 业 班 级 金属材料工程 2008-4班 指 导 教 师 路 文 江 提 交 日 期 2012年6月20年的迅速发展已可制备出为数众多的各种尺寸的纳米颗粒。但从产业化的角度来看，纳米铜颗粒制备的应用针对性还不强，纳米铜颗粒的产品性质与应用要求还有差距，纳米铜颗粒制备方法与工业化规模生产还有相当的距离。制备和发展纳米铜颗粒材料，满足当今高科技对结构和功能材料的需要，是当今材料科学的重要组成部分。纳米铜颗粒作为一种新材料，其最终价值的体现是其应用于生产和生活，推动生产力的发展。于是，各种制备铜纳米粉的方法应用而生，而电爆炸法更具有独特的优点：可生产超细粉体；能量转换效率高等。近几年来，电爆炸法是新兴起来的、用于工业上生产纯金属、金属氧化物、氮化物和合金的超细粉末的重要方法，以期不久的将来在纳米铜颗粒的制备技术上有所突破，使其能进行工业化生产并得到广泛应用，从而使纳米铜颗粒的优良特性得以造福人类。 关键词：纳米材料，性能，工艺，电爆法，晶粒 ABSTRACT Preparation of Cu nanopartic -les can be prepared by a large number of nanoparticles of various sizes after nearly 20 years of rapid development. However, industry-oriented point of view, the application of the preparation of Cu nanoparticles targeted is not strong, and the nature of the product of the Cu nanoparticles and application requirements are still far from the Cu nanoparticles preparation methods and the industrial scale production is still a considerable distance. Preparation and development of nano-copper particle materials, to meet the need of todays high-tech materials of the structure and function is an important part of todays materials science. Cu nanoparticles as a new material, its final value is applied to the production and life, to promote the development of productive forces. Thus, the application of a variety of preparation of copper nano-powder was born, and the electrical explosion method has unique advantages: can produce ultra-fine powder; high energy conversion efficiency; particles evenly distributed production scale up to kilogram level. In recent years, the electrical explosion method is emerging for the industrial production of pure metals, metal oxides, nitrides and alloy ultrafine powders of the near future, the technical of preparation of Cu nanoparticles breakthrough to enable them to carry out industrial production and are widely used, so that th