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    • 4. 发明授权
    • Superplastic aluminum alloy and process for producing same
    • 超塑性铝合金及其制造方法
    • US5573608A
    • 1996-11-12
    • US450554
    • 1995-05-25
    • Yoshiharu MiyakeTetsuya Suganuma
    • Yoshiharu MiyakeTetsuya Suganuma
    • C22C21/00C22C21/06C22F1/047C22F1/04
    • C22C21/06C22F1/047Y10S420/902
    • The present invention relates to a process for producing a superplastic aluminum alloy capable of being used for plastic working such as extrusion, forging and rolling. An object of the present invention is to provide an ingot-made high speed superplastic aluminum alloy in which superplasticity is developed at a strain rate higher than that of conventional static recrystallization type superplastic aluminum alloys, and a process for producing the same. The superplastic aluminum alloy of the invention has structure which is obtained by adding to a basic alloy containing from at least 4.0 to 15% by weight of Mg and from 0.1 to 1.0% by weight of one or more elements selected from the group consisting of Mm, Zr, V, W, Ti, Ni, Nb, Ca, Co, Mo and Ta, and further selective elements of Sc, Cu, Li, Sn, In and Cd, which contains from 0.1 to 4.0% by volume fraction of spheroidal precipitates of intermetallic compounds having a particle size from 10 to 200 nm, and which has a mean grain size from 0.1 to 10 .mu.m.
    • 本发明涉及一种能够用于挤压,锻造和轧制等塑性加工的超塑性铝合金的制造方法。 本发明的目的是提供一种以比常规静态再结晶型超塑性铝合金高的应变速率显现超塑性的铸锭制造的高速超塑性铝合金及其制造方法。 本发明的超塑性铝合金具有通过添加至含有至少4.0〜15重量%的Mg和0.1〜1.0重量%的一种或多种选自Mm ,Zr,V,W,Ti,Ni,Nb,Ca,Co,Mo和Ta以及Sc,Cu,Li,Sn,In和Cd的其他选择元素,其含有0.1至4.0体积% 具有10〜200nm的粒径的金属间化合物的析出物,其平均粒径为0.1〜10μm。
    • 10. 发明授权
    • Alloy catalyst and process for producing the same
    • 合金催化剂及其制备方法
    • US6147027A
    • 2000-11-14
    • US114968
    • 1998-07-14
    • Yoshiharu MiyakeNaoto MiyoshiShinji Tsuji
    • Yoshiharu MiyakeNaoto MiyoshiShinji Tsuji
    • B01D53/94B01J23/38B01J23/40B01J37/02B01J37/03B01J37/16B01J23/00
    • B01D53/945B01J23/38B01J23/40B01J37/0221B01J37/031Y02T10/22
    • The present invention relates to an alloy catalyst for purifying an exhaust gas, and particularly provides an alloy catalyst excellent in nitrogen oxide purification characteristics in the lean region by improving the catalytic activity by coating first catalytic metal particles with a second metal coagulated phase, and a process for producing the same, the alloy catalyst for purifying an exhaust gas having a structure in which metal coagulated phases being applied to and supported by a metal oxide, and comprising first catalytic metal particles having an average particle size of up to 30 nm, and a second metal coagulated phase containing at least one metal, differing from the catalytic metal particles, and applying to the first catalytic metal particles at a coating ratio of at least 45%, and the process for producing an alloy catalyst for purifying an exhaust gas, comprising the steps of allowing first catalytic metal particles having an average particle size of up to 30 nm to adhere onto a metal oxide, and reduction precipitating a second metal coagulated phase containing at least one metal differing from the first catalytic metal particles thereon, and comprising at least one metal selected from the group consisting of Pt, Pd, Au, Rh, Ag and Ir.
    • 本发明涉及一种用于净化废气的合金催化剂,特别是通过用第二金属凝固相涂覆第一催化金属颗粒来提高催化活性,从而提供贫区中氮氧化物净化特性优异的合金催化剂, 制造该金属氧化物的金属凝固相的金属凝固相的结构的排气净化用合金催化剂,其平均粒径为30nm以下的第一催化剂金属粒子,以及 第二金属凝固相,其含有至少一种与催化金属颗粒不同的金属,并以至少45%的涂布比施加到第一催化金属颗粒,以及用于制备用于净化废气的合金催化剂的方法, 包括允许平均粒度高达30nm的第一催化金属颗粒粘附的步骤 并且还原沉淀含有与第一催化金属颗粒不同的至少一种金属的第二金属凝固相,并且包含选自Pt,Pd,Au,Rh,Ag和Ir中的至少一种金属 。