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    • 64. 发明授权
    • Metal matrix composite, and preparation method thereof
    • 金属基复合材料及其制备方法
    • US09410228B2
    • 2016-08-09
    • US13513715
    • 2010-10-22
    • Dong Hyun BaeHyun Joo Choi
    • Dong Hyun BaeHyun Joo Choi
    • B22F3/15C22C1/10C22C32/00
    • C22C1/1084B22F2998/10B22F2999/00C22C1/1005C22C32/0052C22C32/0057C22C32/0084B22F3/17B22F3/24B22F9/04
    • The present invention provides a preparation method of a metal matrix composite. The method comprises the following steps of: 1) pulverizing a solid carbon material to a micrometer size; 2) plastic deforming a metal matrix powder and dispersing the pulverized nanometer-sized carbon material into the metal matrix powder during the plastic deformation; 3) integrating the metal/carbon nano-material composite powder obtained in step 2) by using a hot forming process; and 4) heat treating the integrated bulk material at a predetermined temperature to form a composite having a metal-carbon nanophase, a metal-carbon nanoband formed by growth of the metal-carbon nanophase, or a metal-carbon nano-network structure formed by self-coupling of the metal-carbon nanoband.
    • 本发明提供金属基质复合材料的制备方法。 该方法包括以下步骤:1)将固体碳材料粉碎至微米尺寸; 2)塑性变形金属基体粉末,在塑性变形过程中将粉碎的纳米级碳材料分散在金属基体粉末中; 3)通过热成型工艺整合步骤2)中得到的金属/碳纳米材料复合粉末; 以及4)在预定温度下热处理所述整体材料以形成具有金属 - 碳纳米相的复合材料,通过金属 - 碳纳米相生长形成的金属 - 碳纳米棒,或由金属 - 碳纳米相生长形成的金属 - 碳纳米网络结构 金属 - 碳纳米管的自耦合。
    • 70. 发明申请
    • Neutron Absorption Effectiveness for Boron Content Aluminum Materials
    • 硼含量铝材料的中子吸收效果
    • US20080050270A1
    • 2008-02-28
    • US11568172
    • 2005-04-21
    • Xiao-Guang ChenGhyslain DubeNigel Steward
    • Xiao-Guang ChenGhyslain DubeNigel Steward
    • G21F1/08C22B21/00C22C21/00C22C32/00
    • C22C1/1036B22D21/007C22C32/0057C22C32/0073C22C2001/1052G21C7/24Y02E30/39
    • A method is described for improving neutron absorption in aluminum-based cast composite material, which comprises preparing a molten composite from an aluminum alloy matrix and aluminum-boron intermetallics containing relatively large boron-containing particles, and either (a) heating the composite and holding for a time sufficient to partially dissolve the boron-containing particles and then adding titanium to form fine titanium diboride particles, and casting the composite, or (b) adding gadolinium or samarium to the molten composite or to the aluminum alloy matrix and casting the composite to precipitate fine particles of Gd—Al or Sm—Al within the cast composite, said fine particles filling gaps around the large boron-containing particles with neutron absorbing material. A neutron absorbing cast composite material is obtained comprising neutron absorbing compounds in the form of large particles comprising B4C or an aluminum-boron intermetallic and a distribution of fine particles or precipitates comprising TiB2 or (AlTi)B2, Sm-aluminum intermetallic compounds or Gd-aluminum intermetallic compounds.
    • 描述了一种用于改善铝基铸造复合材料中的中子吸收的方法,其包括从铝合金基体和含有相对较大的含硼颗粒的铝 - 硼金属间络合物制备熔融复合物,以及(a)加热复合材料和保持 足以部分溶解含硼颗粒,然后加入钛以形成细二硼化钛颗粒,并浇铸复合材料,或(b)向熔融复合材料或铝合金基体中加入钆或钐,并将复合材料 在铸造复合材料中析出Gd-Al或Sm-Al的细颗粒,所述细颗粒用中子吸收材料填充大的含硼颗粒周围的间隙。 获得的中子吸收铸造复合材料包括中子吸收化合物,其形式为包含B 4 C或者铝 - 硼金属间化合物的大颗粒,以及包含TiB 2 /(AlTi)B 2,Sm-铝金属间化合物或Gd-铝金属间化合物。