Low-energy method of manufacturing bulk metallic structures with submicron grain sizes
    31.
    发明授权
    Low-energy method of manufacturing bulk metallic structures with submicron grain sizes 有权
    制造具有亚微米尺寸的体积金属结构的低能量方法

    公开(公告)号:US08043655B2

    公开(公告)日:2011-10-25

    申请号:US12245840

    申请日:2008-10-06

    IPC分类号: B05D1/12

    摘要: Three dimensionally large metallic structures comprised of submicron grain sizes are produced by a process which includes directing a supersonic powder jet against a substrate such that the powder adheres to the substrate and to itself to form a dense cohesive deposit. The powder jet may be comprised of refractory metal powders. The powder may be deposited by a supersonic jet and may be extruded by Equi channel angular extrusion.

    摘要翻译: 由亚微米颗粒尺寸组成的三维大金属结构通过包括将超音速粉末射流引向衬底的方法产生,使得粉末粘附到衬底上并使其自身形成致密的内聚沉积物。 粉末喷射可以由难熔金属粉末组成。 粉末可以通过超音速喷射沉积,并且可以通过Equi通道角挤压挤出。

    PRE-COATED, ULTRA-FINE, SUBMICRON GRAIN TITANIUM AND TITANIUM-ALLOY COMPONENTS
    32.
    发明申请
    PRE-COATED, ULTRA-FINE, SUBMICRON GRAIN TITANIUM AND TITANIUM-ALLOY COMPONENTS 审中-公开
    预涂层,超细纤维,超细颗粒和钛合金组分

    公开(公告)号:US20110027043A1

    公开(公告)日:2011-02-03

    申请号:US12900995

    申请日:2010-10-08

    申请人: Steven G. Keener

    发明人: Steven G. Keener

    摘要: A high-strength, pre-coated, titanium or titanium-alloy material component is provided that includes a titanium or titanium-alloy material article having ultra-fine, submicron grain size microstructure and an organic coating of phenolic resin applied to the surface of the article. The article is prepared from a coarse grain titanium or titanium-alloy powder material that is cryomilled into an ultra-fine, submicron grain material, degassed, and densified. The densified material is formed or otherwise processed into a article, and pre-coated with an organic coating containing phenolic resin prior to installation or assembly.

    摘要翻译: 提供了一种高强度,预涂层,钛或钛合金材料组分,其包括具有超细亚微米晶粒尺寸微结构的钛或钛合金材料制品,以及施加到表面上的酚醛树脂的有机涂层 文章。 该制品由粗晶钛或钛合金粉末材料制成,该材料被冷冻成超微细亚微米颗粒材料,脱气并致密化。 将致密材料形成或以其它方式加工成制品,并在安装或组装之前用含有酚醛树脂的有机涂层预涂覆。

    IRON-BASED RARE-EARTH NANOCOMPOSITE MAGNET AND METHOD FOR PRODUCING THE MAGNET
    38.
    发明申请
    IRON-BASED RARE-EARTH NANOCOMPOSITE MAGNET AND METHOD FOR PRODUCING THE MAGNET 有权
    基于铁的稀土纳米复合磁体及其制造方法

    公开(公告)号:US20090223606A1

    公开(公告)日:2009-09-10

    申请号:US10596880

    申请日:2005-12-13

    IPC分类号: C21D1/00 H01F1/055 B02C1/00

    摘要: The iron-based rare-earth nanocomposite magnet of the present invention has a composition T100-x-y-z-nQxRyTizMn, where T is Fe or a transition metal element in which Fe is partially replaced by Co and/or Ni; Q is B and/or C; R is at least one rare-earth element including substantially no La or Ce; and M is at least one metal element selected from Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. x, y, z and n satisfy 5≦x≦10 at %, 7≦y≦10 at %, 0.1≦z≦5 at % and 0≦n≦10 at %, respectively. The magnet includes R2Fe14B-type compound phases and α —Fe phases forming a magnetically coupled nanocomposite magnet structure. The R2Fe14B-type compound phases have an average crystal grain size of 30 nm to 300 nm and the α —Fe phases have an average crystal grain size of 1 nm to 20 nm. The magnet has magnetic properties including a coercivity of at least 400 kA/m and a remanence of at least 0.9 T.

    摘要翻译: 本发明的铁基稀土纳米复合磁体具有组成T100-x-y-z-nQxRyTizMn,其中T是Fe或其中Fe被Co和/或Ni部分替代的过渡金属元素; Q是B和/或C; R是至少一种稀土元素,其基本上不含La或Ce; M是选自Al,Si,V,Cr,Mn,Cu,Zn,Ga,Zr,Nb,Mo,Ag,Hf,Ta,W,Pt,Au和Pb中的至少一种金属元素。 x,y,z和n分别满足5≤x≤10at%,7≤y≤10at%,0.1≤z≤5at%,0≤n≤10at%。 磁体包括形成磁耦合纳米复合磁体结构的R2Fe14B型复合相和α-Fe相。 R2Fe14B型化合物相的平均结晶粒径为30nm〜300nm,α-Fe相的平均结晶粒径为1nm〜20nm。 磁体具有包括至少400kA / m的矫顽力和至少0.9T的剩磁的磁性能。

    HIGHLY CRYSTALLINE SILVER POWDER AND METHOD FOR PRODUCING THE SAME
    39.
    发明申请
    HIGHLY CRYSTALLINE SILVER POWDER AND METHOD FOR PRODUCING THE SAME 审中-公开
    高晶体银粉及其制造方法

    公开(公告)号:US20090023007A1

    公开(公告)日:2009-01-22

    申请号:US10588970

    申请日:2005-02-04

    IPC分类号: C22C5/06 B22F9/24

    摘要: An object of the present invention is to provide highly crystalline silver powder which is characterized in fine particles, showing high dispersibility, it's particle size distribution is not excessively sharp but relatively broad and crystallites are large; and a method for producing the same. In order to achieve the object, a method for producing highly crystalline silver powder is characterized in that mixing a first aqueous solution and a second aqueous solution, wherein the first aqueous solution contains silver nitrate, a dispersing agent and nitric acid, and the second solution contains ascorbic acid. For dispersing agent, polyvinylpyrrolidone or gelatin is preferred. Highly crystalline silver powder produced by the above-described method is preferred to be a crystallite diameter of 300 Å or more, an average particle diameter D50 in the range from 0.5 μm to 10 μm, and a thermal shrinkage rate for the length direction after heating at 700° C. in the range from −3% to 3%. For ratio D90/D10 of the silver powder is preferred to be in the range from 2.1 to 5.0.

    摘要翻译: 本发明的目的是提供高分散性的高结晶性银粉末,其特征在于细颗粒,显示出高分散性,其粒度分布不过分锐利但相对宽且微晶大; 及其制造方法。 为了达到上述目的,制造高结晶度银粉的方法的特征在于,将第一水溶液和第二水溶液混合,其中第一水溶液含有硝酸银,分散剂和硝酸,第二溶液 含有抗坏血酸。 对于分散剂,优选聚乙烯吡咯烷酮或明胶。 通过上述方法制造的高结晶度银粉末优选为微晶直径为300以上,平均粒径D50为0.5μm〜10μm,加热后的长度方向的热收缩率 在700℃,在-3%至3%的范围内。 对于银粉的D90 / D10比优选为2.1〜5.0。