Synthesis of bulk, fully dense nanostructured metals and metal matrix composites
    2.
    发明申请
    Synthesis of bulk, fully dense nanostructured metals and metal matrix composites 审中-公开
    大量,完全致密的纳米结构金属和金属基复合材料的合成

    公开(公告)号:US20060153728A1

    公开(公告)日:2006-07-13

    申请号:US11033099

    申请日:2005-01-10

    IPC分类号: B22F3/105

    摘要: Bulk nanostructured alloys, such as aluminum 5083 alloys reinforced with 10 wt. % particulate B4C, was synthesized by cryomilling and spark plasma sintering. Material for the alloy are selected and the selected raw materials are cryomilled, mechanical milling at cryogenic temperatures, to fabricate nanostructured alloys at low temperatures. The cryomilled powders are then degassed, and consolidated using spark plasma sintering into dense bulk materials. The material thus obtained achieved near full density bulk materials, while retaining the nanocrystalline nature. The densities of the compacts were measured using Archimedes method. XRD, SEM, TEM, and hardness testing were used to characterize the cryomilled powders and consolidated compacts.

    摘要翻译: 散装纳米结构合金,例如用10wt。 通过冷冻和放电等离子体烧结合成了颗粒B 4 C 4。 选择合金的材料,选择的原材料是低温冷却,在低温下机械研磨,在低温下制造纳米结构合金。 然后将冷冻的粉末脱气,并使用火花等离子体烧结将其固结成密集的散装材料。 由此获得的材料接近全密度散装材料,同时保持纳米晶体性质。 使用阿基米德法测量压块的密度。 使用XRD,SEM,TEM和硬度测试来表征冷冻粉末和固结压块。