公开(公告)号：US5534103A

公开(公告)日：1996-07-09

申请号：US318550

申请日：1994-10-05

申请人： Tetsuo Yano ,  Toshihiko Ooie ,  Masafumi Yoneda ,  Akihiro Utsumi ,  Munehide Katsumura ,  Jun Matsuda

发明人： Tetsuo Yano ,  Toshihiko Ooie ,  Masafumi Yoneda ,  Akihiro Utsumi ,  Munehide Katsumura ,  Jun Matsuda

IPC分类号： B23P11/00 ,  B23K26/00 ,  B23K26/32 ,  C04B37/02 ,  B32B31/28

CPC分类号： C04B37/025 ,  C04B37/026 ,  C04B2237/16 ,  C04B2237/366 ,  C04B2237/368 ,  C04B2237/407 ,  C04B2237/55 ,  C04B2237/704 ,  C04B2237/80 ,  Y10S228/903

摘要： Proposed is a method for bonding of a ceramic body and a metallic body at a relatively low temperature not to cause substantial deformation or material degradation of the ceramic and metallic materials. The surface of the ceramic body is first irradiated with laser beams in vacuum so that the inorganic non-volatile constituent of the ceramic material, e.g. silicon when the ceramic is silicon nitride, is isolated on the surface of the ceramic body forming a layer. Thereafter, the metallic body is brought into contact with and pressed in vacuum against the thus laser beam-irradiated area of the ceramic body under an adequate pressing force and at an elevated but relatively low temperature which is, for example, not higher than 0.5Tm .degree.C., Tm .degree.C. being the melting point of the metallic material, so that the ceramic and metallic bodies are firmly bonded together. It is preferable that the surface of the metallic body is subjected beforehand to an activation or cleaning treatment, for example, by the bombardment with ion beams of an inert gas, e.g., argon.

摘要翻译： 提出了一种陶瓷体和金属体在较低温度下的接合方法，不会导致陶瓷和金属材料的实质变形或材料劣化。 首先在真空中用激光束照射陶瓷体的表面，使得陶瓷材料的无机非挥发性成分，例如陶瓷材料。 当陶瓷是氮化硅时硅被隔离在陶瓷体的表面上形成一层。 此后，使金属体在适当的压力下和在例如不高于0.5Tm的升高但相对较低的温度下与真空中的陶瓷体的激光束照射区域接触并压制 ℃，Tm℃是金属材料的熔点，使得陶瓷和金属体牢固地结合在一起。 优选地，例如通过用惰性气体例如氩气的离子束进行轰击，预先对金属体的表面进行活化或清洗处理。

公开(公告)号：US4947463A

公开(公告)日：1990-08-07

申请号：US310902

申请日：1989-02-16

申请人： Jun Matsuda ,  Akihiro Utsumi ,  Munehide Katsumura ,  Masafumi Yoneda ,  Tetsuo Yano

发明人： Jun Matsuda ,  Akihiro Utsumi ,  Munehide Katsumura ,  Masafumi Yoneda ,  Tetsuo Yano

IPC分类号： B05B7/22 ,  B23K26/14 ,  C23C4/12

CPC分类号： C23C4/12 ,  B05B7/228 ,  B23K26/144

摘要： A spraying material is fed to and melted in a high energy density zone formed by converging a laser beam therein with a converging lens or a mirror, and the molten spraying material is rendered into particles by jetting a carrier gas stream such that the axis thereof crosses the axis of the laser beam in the high energy density zone to blow the particles of the molten spraying material against a base surface disposed to be normal to the carrier gas stream axis beyond the high energy density zone so as to form a film of the spraying material on the surface.

摘要翻译： 喷射材料通过会聚的透镜或反射镜将激光束聚光而形成的高能量密度区域中进行熔融并通过喷射载气流使熔融喷射材料成为颗粒，使得其轴线穿过 在高能量密度区域中的激光束的轴线将熔融喷射材料的颗粒压靠在与载气流轴线垂直的基底表面上，超过高能量密度区域，以形成喷涂膜 表面材料。

公开(公告)号：US07662207B2

公开(公告)日：2010-02-16

申请号：US10529418

申请日：2003-09-26

申请人： Harumatsu Miura ,  Nobuaki Miyao ,  Hidenori Ogawa ,  Kazuo Oda ,  Munehide Katsumura ,  Masaru Mizutani

发明人： Harumatsu Miura ,  Nobuaki Miyao ,  Hidenori Ogawa ,  Kazuo Oda ,  Munehide Katsumura ,  Masaru Mizutani

IPC分类号： B22F3/00

CPC分类号： C22C38/40 ,  B22F1/0044 ,  B22F3/006 ,  B22F9/005 ,  B22F2998/00 ,  C21D2201/03 ,  C21D2211/001 ,  C22C33/02 ,  C22C38/58 ,  B22F3/105 ,  B22F3/14 ,  B22F3/20

摘要： The invention provides a super hard and tough, nano-crystal austenite steel bulk material having an improved corrosion resistance, and its preparation process.The austenite steel bulk material comprises an aggregate of austenite nano-crystal grains containing 0.1 to 2.0% (by mass) of a solid solution type nitrogen, wherein an oxide, nitride, carbide or the like of a metal or semimetal exists as a crystal grain growth inhibitor between and/or in said nano-crystal grains.For preparation, fine powders of austenite steel-forming components, i.e., iron and chromium, nickel, manganese, carbon or the like are mixed with a substance that becomes a nitrogen source. Mechanical alloying (MA) is applied to the mixture, thereby preparing nano-crystal austenite steel powders having a high nitrogen concentration. Finally, the austenite steel powders are consolidated by sintering by means of spark plasma sintering, rolling or the like.

摘要翻译： 本发明提供了具有改善的耐腐蚀性的超硬和坚韧的纳米晶体奥氏体钢体材料及其制备方法。 奥氏体钢本体材料包含含有0.1〜2.0质量％的固溶体型氮的奥氏体纳米晶粒集合体，其中作为晶粒存在金属或半金属的氧化物，氮化物，碳化物等 所述纳米晶粒之间和/或之间的生长抑制剂。 为了制备，将奥氏体钢成形组分即铁和铬，镍，锰，碳等的细粉末与成为氮源的物质混合。 将机械合金化（MA）施加到混合物上，从而制备氮浓度高的纳米级奥氏体钢粉末。 最后，奥氏体钢粉末通过放电等离子体烧结，轧制等烧结来固结。

公开(公告)号：US20060127266A1

公开(公告)日：2006-06-15

申请号：US10529587

申请日：2003-09-30

申请人： Harumatsu Miura ,  Nobuaki Miyao ,  Hidenori Ogawa ,  Kazuo Oda ,  Munehide Katsumura ,  Masaru Mizutani

发明人： Harumatsu Miura ,  Nobuaki Miyao ,  Hidenori Ogawa ,  Kazuo Oda ,  Munehide Katsumura ,  Masaru Mizutani

IPC分类号： B22F3/10

CPC分类号： B22F3/006 ,  B22F2003/1032 ,  B22F2998/00 ,  B22F2998/10 ,  C22C9/01 ,  C22C14/00 ,  C22C21/12 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/48 ,  C22C2200/04 ,  B22F3/08 ,  B22F3/20 ,  B22F9/005 ,  B22F3/14 ,  B22F3/105 ,  B22F1/0018 ,  C22C1/1084

摘要： The invention provides a high hard, strength and tough nano-crystal metal bulk material and a preparation process thereof. The metal bulk material comprises an aggregate of metal nano-crystal grains, wherein an oxide, nitride, carbide, boride or the like of a metal or semimetal exists as a crystal grain growth inhibitor between and/or in the nano-crystal grains. The respective fine powders of nano-metal bulk material-forming components are mechanically alloyed (MA), using a ball mill or the like, thereby preparing nano-metal powders. Then, hot forming-by-sintering treatment such as spark plasma sintering, extrusion and rolling or explosive forming is applied to the powders to obtain a high hard, strength and tough nano-crystal metal bulk material.

摘要翻译： 本发明提供高硬度，强度和韧性的纳米晶体金属体材料及其制备方法。 金属体材料包括金属纳米晶粒的集合体，其中存在金属或半金属的氧化物，氮化物，碳化物，硼化物等作为纳米晶粒之间和/或纳米晶粒中的晶粒生长抑制剂。 使用球磨机等将纳米金属块状材料形成组分的相应细粉末机械合金化（MA），由此制备纳米金属粉末。 然后，对粉末进行火花等离子体烧结，挤压，轧制或爆炸成形等热成形烧结处理，得到高硬度，强度和韧性的纳米晶体金属散装材料。

公开(公告)号：US4568814A

公开(公告)日：1986-02-04

申请号：US575299

申请日：1984-01-30

申请人： Masanobu Hamasaki ,  Munehide Katsumura

发明人： Masanobu Hamasaki ,  Munehide Katsumura

IPC分类号： B23K26/00 ,  B23K26/40 ,  G21F9/28 ,  G21F9/30 ,  B28B11/12

CPC分类号： B23K26/16 ,  B23K26/0093 ,  B23K26/364 ,  B23K26/40 ,  B28D1/221 ,  G21D1/003 ,  G21F9/28 ,  G21F9/34 ,  B23K2203/50 ,  Y02E30/40

摘要： The slag formed when concrete is melted by exposure to a laser beam, when caused to incorporate therein a MgO-rich supplementary material, loses it viscosity and, on cooling, refrains from expanding and, consequently, assumes a readily removable state. The slag thus set can be easily removed by allowing a cleaning device such as the rotary wire brush to pass along the part of concrete melted by the laser beam. In accordance with this method, the apparatus for cutting concrete can be readily applied to a remote control system and will manifest an outstanding effect in a highly hazardous site such as is involved in the dismantling of a biological shield wall of concrete in a nuclear reactor.

摘要翻译： 当混凝土通过暴露于激光束熔化时形成的炉渣，当其中掺入富含MgO的补充材料时，其失去粘度，并且在冷却时不会膨胀，并因此呈现易于移除的状态。 通过允许诸如旋转钢丝刷的清洁装置沿着由激光束熔化的混凝土的部分通过，可以容易地去除由此设定的炉渣。 根据这种方法，用于切割混凝土的装置可以容易地应用于远程控制系统，并且将在高度危险的场所中表现出显着的效果，例如涉及在核反应堆中拆除混凝土的生物屏蔽壁。

公开(公告)号：US20060193742A1

公开(公告)日：2006-08-31

申请号：US10529418

申请日：2003-09-26

申请人： Harumatsu Miura ,  Nobuaki Miyao ,  Hidenori Ogawa ,  Kazuo Oda ,  Munehide Katsumura ,  Masaru Mizutani

发明人： Harumatsu Miura ,  Nobuaki Miyao ,  Hidenori Ogawa ,  Kazuo Oda ,  Munehide Katsumura ,  Masaru Mizutani

IPC分类号： B22F3/105

CPC分类号： C22C38/40 ,  B22F1/0044 ,  B22F3/006 ,  B22F9/005 ,  B22F2998/00 ,  C21D2201/03 ,  C21D2211/001 ,  C22C33/02 ,  C22C38/58 ,  B22F3/105 ,  B22F3/14 ,  B22F3/20

摘要： The invention provides a super hard and tough, nano-crystal austenite steel bulk material having an improved corrosion resistance, and its preparation process. The austenite steel bulk material comprises an aggregate of austenite nano-crystal grains containing 0.1 to 2.0% (by mass) of a solid solution type nitrogen, wherein an oxide, nitride, carbide or the like of a metal or semimetal exists as a crystal grain growth inhibitor between and/or in said nano-crystal grains. For preparation, fine powders of austenite steel-forming components, i.e., iron and chromium, nickel, manganese, carbon or the like are mixed with a substance that becomes a nitrogen source. Mechanical alloying (MA) is applied to the mixture, thereby preparing nano-crystal austenite steel powders having a high nitrogen concentration. Finally, the austenite steel powders are consolidated by sintering by means of spark plasma sintering, rolling or the like.

摘要翻译： 本发明提供了具有改善的耐腐蚀性的超硬和坚韧的纳米晶体奥氏体钢体材料及其制备方法。 奥氏体钢本体材料包含含有0.1〜2.0质量％固溶体氮的奥氏体纳米晶粒，其中作为晶粒存在金属或半金属的氧化物，氮化物，碳化物等 所述纳米晶粒之间和/或之间的生长抑制剂。 为了制备，将奥氏体钢成形组分即铁和铬，镍，锰，碳等的细粉末与成为氮源的物质混合。 将机械合金化（MA）施加到混合物上，从而制备氮浓度高的纳米级奥氏体钢粉末。 最后，奥氏体钢粉末通过放电等离子体烧结，轧制等烧结来固结。