公开(公告)号：US08721762B2

公开(公告)日：2014-05-13

申请号：US12813106

申请日：2010-06-10

Applicant: Wei Wu

Inventor： Wei Wu

IPC: B22F9/22

CPC classification number: B22F9/26 ,  B22F1/0011 ,  B22F2999/00 ,  B22F2201/013

Abstract: A process for synthesizing metal submicron and nano-scale powders for use in articles of manufacture. In a suitable reactor, single metal or multiple metal complexes are heated to a temperature whereby, upon contact with hydrogen gas, an exothermic reaction begins. The further temperature rise in response to the exothermic reaction is minimized by reducing the external heat input, thereby minimizing the agglomeration or sintering of the metal nano-scale particles resulting from the process. Preferably, after drawing a vacuum on the metal complexes in the reactor, the hydrogen is introduced at about, equal to or below ambient pressure and the reaction is purposely made slow to prevent agglomeration or sintering.

Abstract translation: 用于合成用于制造制品的金属亚微米和纳米级粉末的方法。 在合适的反应器中，将单一金属或多种金属络合物加热到一个温度，由此在与氢气接触时开始放热反应。 通过减少外部热量输入来减小响应于放热反应的进一步温度升高，从而最小化由该方法产生的金属纳米尺度颗粒的聚集或烧结。 优选地，在反应器中的金属配合物上抽真空之后，在约等于或低于环境压力下引入氢气，并且有意地使反应缓慢以防止附聚或烧结。

公开(公告)号：US08652232B2

公开(公告)日：2014-02-18

申请号：US12593682

申请日：2008-03-05

Applicant: Laure Bisson ,  Cecile Thomazeau ,  Clement Sanchez ,  Cedric Boissiere

Inventor： Laure Bisson ,  Cecile Thomazeau ,  Clement Sanchez ,  Cedric Boissiere

IPC: B22F9/24 ,  C07C5/02 ,  B82Y40/00

CPC classification number: B01J35/0013 ,  B01J23/40 ,  B01J23/44 ,  B01J37/03 ,  B22F1/0018 ,  B22F9/24 ,  B22F9/26 ,  B22F2001/0037 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C10G45/34 ,  C10G45/36 ,  C10G45/40 ,  B22F2201/013 ,  B22F1/0025

Abstract: A process is described for preparing cubic metallic nanoparticles, comprising: a) preparing an aqueous solution containing a source of a metal from group VIII, a reducing agent R1 and a stabilizer; b) preparing an aqueous solution containing a source of a group VIII metal and a stabilizer at a temperature strictly higher than 70° C. and less than or equal to 80° C.; c) mixing at least a portion of the aqueous solution obtained in step a) with the aqueous solution obtained in step b) to obtain, in the presence of a reducing agent R2, metallic nanoparticles in the cubic form representing at least 70% by number of the entire quantity of metallic nanoparticles which are formed; d) depositing said metallic nanoparticles derived from step c) on a support.

Abstract translation: 描述了制备立方金属纳米粒子的方法，包括：a）制备含有VIII族金属源，还原剂R1和稳定剂的水溶液; b）在严格高于70℃且小于或等于80℃的温度下制备含有VIII族金属源和稳定剂源的水溶液; c）将步骤a）中得到的水溶液的至少一部分与步骤b）中得到的水溶液混合，在还原剂R2的存在下，以立方体形式代表至少70％的金属纳米粒子 形成的全部金属纳米粒子; d）将从步骤c）得到的所述金属纳米颗粒沉积在载体上。

公开(公告)号：US08591624B2

公开(公告)日：2013-11-26

申请号：US12858451

申请日：2010-08-18

Applicant: Chung-Sung Tan ,  Wei-Kuo Chin ,  Hsien-Te Hsieh

Inventor： Chung-Sung Tan ,  Wei-Kuo Chin ,  Hsien-Te Hsieh

IPC: B22F9/24 ,  B82Y40/00

CPC classification number: C07C51/412 ,  B22F9/24 ,  B22F2301/25 ,  B22F2303/01 ,  B22F2998/00 ,  B22F2999/00 ,  C07C53/128 ,  B22F1/0018 ,  B22F9/26 ,  B22F2201/04 ,  B22F2201/013

Abstract: Hydrophobic metal nanoparticles are prepared by reducing a metal precursor in a non-polar or low polar organic solvent with or without volume expansion by adding CO2.

Abstract translation: 疏水性金属纳米粒子是通过在非极性或低极性有机溶剂中还原金属前体而制备的，通过加入二氧化碳可以有或没有体积膨胀。

公开(公告)号：US20130224490A1

公开(公告)日：2013-08-29

申请号：US13577661

申请日：2011-02-07

Applicant: Ari Auvinen ,  Jorma Jokiniemi ,  Pipsa Mattila ,  Unto Tapper

Inventor： Ari Auvinen ,  Jorma Jokiniemi ,  Pipsa Mattila ,  Unto Tapper

IPC: B22F9/22 ,  B22F9/24

CPC classification number: B22F9/22 ,  B22F1/0018 ,  B22F1/02 ,  B22F1/025 ,  B22F9/24 ,  B22F2999/00 ,  C01P2004/64 ,  C01P2006/42 ,  C09C1/62 ,  C22C19/07 ,  C23C18/08 ,  C23C18/1216 ,  C23C18/1266 ,  C23C18/1279 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/11

Abstract: The present invention relates to a process for forming cobalt nanoparticles and coating them with copper or copper oxide, in which process a copper salt is mixed to a cobalt salt so that the formed salt mixture obtains a cobalt:copper ratio of >1:1, and a reduction is carried out with a reducing gas, whereby nanoparticles are formed while a coating is formed onto their surface.

公开(公告)号：US08479700B2

公开(公告)日：2013-07-09

申请号：US12652635

申请日：2010-01-05

Applicant: Cong Yue Qiao ,  Todd Trudeau

Inventor： Cong Yue Qiao ,  Todd Trudeau

IPC: F01L3/02

CPC classification number: F16K25/005 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/02 ,  C22C1/058 ,  C22C1/1094 ,  C22C38/04 ,  C22C38/34 ,  C22C38/44 ,  C22C38/48 ,  F01L3/02 ,  F01L3/08 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2820/01 ,  F16K1/42 ,  Y10T29/4927 ,  Y10T29/49409 ,  B22F3/02 ,  B22F3/1007 ,  B22F2003/248 ,  B22F2201/00 ,  B22F2201/013 ,  B22F2201/016

Abstract: A chromium-iron alloy comprises in weight %, 1 to 3% C, 1 to 3% Si, up to 3% Ni, 25 to 35% Cr, 1.5 to 3% Mo, up to 2% W, 2.0 to 4.0% Nb, up to 3.0% V, up to 3.0% Ta, up to 1.2% B, up to 1% Mn and 43 to 64% Fe. In a preferred embodiment, the chromium-iron alloy comprises in weight %, 1.5 to 2.3% C, 1.6 to 2.3% Si, 0.2 to 2.2% Ni, 27 to 34% Cr, 1.7 to 2.5% Mo, 0.04 to 2% W, 2.2 to 3.6% Nb, up to 1% V, up to 3.0% Ta, up to 0.7% B, 0.1 to 0.6% Mn and 43 to 64% Fe. The chromium-iron alloy is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.

Abstract translation: 铬铁合金包括重量％，1％至3％的Si，1％至3％的Si，至多3％的Ni，25％至35％的Cr，1.5％至3％的Mo，至多2％的W，2.0％至4.0％ Nb，高达3.0％V，高达3.0％的Ta，高达1.2％的B，高达1％的Mn和43到64％的Fe。 在一个优选的实施方案中，铬 - 铁合金的重量百分比为重量百分比为1.5-2.3％，Si为1.6-2.3％，Ni为0.2-2.2％，Cr为27-34％，Mo为0.04-2％ ，2.2〜3.6％的Nb，高达1％的V，高达3.0％的Ta，高达0.7％的B，0.1到0.6％的Mn和43到64％的Fe。 铬铁合金可用于柴油或天然气发动机等内燃机的阀座插件。

公开(公告)号：US20130112376A1

公开(公告)日：2013-05-09

申请号：US13726434

申请日：2012-12-24

Applicant: Teledyne Scientific & Imaging, LLC

Inventor： Yuan Zhao ,  Chung-Lung Chen

IPC: F28D1/00

CPC classification number: F28D1/00 ,  B22F3/11 ,  B22F2003/026 ,  B22F2998/10 ,  B22F2999/00 ,  F28D15/046 ,  F28F2255/18 ,  Y10T428/131 ,  B22F3/02 ,  B22F3/1007 ,  B22F3/1017 ,  B22F2201/013 ,  B22F2201/20

Abstract: A heat pipe apparatus having a sintered lattice wick structure includes a plurality of wicking walls having respective length, width and heights and spaced in parallel to wick liquid in a first direction along the respective lengths, the respective lengths being longer than the respective widths and the respective heights, the plurality of wicking walls being adjacent to one another and spaced apart to form vapor vents between them, a plurality of interconnect wicking walls to wick liquid between adjacent wicking walls in a second direction substantially perpendicular to the first direction, and a vapor chamber encompassing the sintered lattice wick structure, the vapor chamber having an interior condensation surface and interior evaporator surface, wherein the plurality of wicking walls and the plurality of interconnect wicking walls are configured to wick liquid in first and second directions and the vapor vents communicate vapor in a direction orthogonal to the first and second directions.

Abstract translation: 具有烧结格栅芯结构的热管装置包括多个具有相应长度，宽度和高度的芯吸壁，并且沿着各自的长度在第一方向上与芯液体平行地间隔开，各自的长度大于相应的宽度，并且 多个芯吸壁彼此相邻并间隔开以在它们之间形成蒸汽通气口;多个互连芯吸壁，用于在基本上垂直于第一方向的第二方向上吸收相邻芯吸壁之间的液体;以及蒸汽 包括烧结晶格灯芯结构的腔室，蒸气室具有内部冷凝表面和内部蒸发器表面，其中多个芯吸壁和多个互连芯吸壁构造成在第一和第二方向上吸收液体，并且蒸汽通风口连通蒸汽 在与第一和第二歪斜正交的方向上 动作。

公开(公告)号：US20130093552A1

公开(公告)日：2013-04-18

申请号：US13806762

申请日：2010-12-24

Applicant: Qingkai Wang ,  Yongjiang Yu ,  Ning Guo

Inventor： Qingkai Wang ,  Yongjiang Yu ,  Ning Guo

IPC: H01F1/01

CPC classification number: H01F1/01 ,  B22F2201/013 ,  B22F2998/10 ,  B22F2999/00 ,  C22C28/00 ,  C22C33/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F7/021 ,  H01F41/0273 ,  B22F9/04 ,  B22F2009/044 ,  B22F3/02 ,  B22F3/10 ,  B22F2202/05

Abstract: A neodymium-iron-boron (NdFeB) magnet having gradient coercive force and its preparation method are disclosed. The NdFeB magnet includes at least two NdFeB material layers having different coercive force, including an exterior layer having high coercive force and at least a medial layer having low coercive force. The exterior layer is connected to the medial layer via a sintered layer along an orientation direction. The NdFeB magnet has high magnetic properties and high resistance to magnetism loss.

Abstract translation: 公开了一种具有梯度矫顽力的钕铁硼（NdFeB）磁体及其制备方法。 NdFeB磁体包括具有不同矫顽力的至少两个NdFeB材料层，包括具有高矫顽力的外层和至少具有低矫顽力的中间层。 外层通过沿着取向方向的烧结层连接到中间层。 NdFeB磁体具有高的磁性能和高的磁损耗。

公开(公告)号：US08395003B2

公开(公告)日：2013-03-12

申请号：US12597341

申请日：2008-04-14

Applicant: Bastien Leger ,  Alain Roucoux ,  Helene Olivier-Bourbigou

Inventor： Bastien Leger ,  Alain Roucoux ,  Helene Olivier-Bourbigou

IPC: C07C5/02 ,  B01J31/28

CPC classification number: B22F1/0022 ,  B01J23/42 ,  B01J23/462 ,  B01J23/464 ,  B01J23/468 ,  B01J23/755 ,  B01J31/0284 ,  B01J31/0288 ,  B01J31/0289 ,  B01J31/1815 ,  B01J35/0013 ,  B01J35/006 ,  B01J37/16 ,  B01J37/18 ,  B01J2531/821 ,  B01J2531/822 ,  B01J2531/827 ,  B22F1/0059 ,  B22F9/24 ,  B22F9/26 ,  B22F2999/00 ,  B82Y30/00 ,  C07C5/03 ,  C07C2523/46 ,  C07C2531/22 ,  C07C2601/14 ,  C07C13/18 ,  C07C9/15 ,  B22F3/26 ,  B22F2201/013

Abstract: The object of this invention is a suspension of metal nanoparticles with a mean size of between 1 and 20 nanometers, in at least one non-aqueous ionic liquid, whereby said suspension also contains at least one nitrogen-containing ligand, in which said metal nanoparticles comprise at least one transition metal in the zero valence state that is selected from among rhodium, ruthenium, iridium, nickel, and platinum by themselves or in a mixture and in which said nitrogen-containing ligand is selected from the group that is formed by the linear compounds that comprise at least one nitrogen atom, whereby the non-aromatic cyclic compounds comprise at least one nitrogen atom, the non-condensed aromatic compounds comprise at least one nitrogen atom, the condensed aromatic compounds comprise at least one group of two aromatic cycles that are condensed two by two, and at least one nitrogen atom, whereby the condensed aromatic compounds comprise at least 3 aromatic cycles and 1 nitrogen atom, and whereby the condensed aromatic compounds comprise at least 3 aromatic cycles and at least 2 nitrogen atoms that are located in the same aromatic cycle.

Abstract translation: 本发明的目的是在至少一种非水离子液体中的平均尺寸为1至20纳米的金属纳米颗粒的悬浮液，由此所述悬浮液还含有至少一种含氮配体，其中所述金属纳米颗粒 包含至少一种零价态的过渡金属，其自身或混合物中选自铑，钌，铱，镍和铂，并且其中所述含氮配体选自由 包含至少一个氮原子的线性化合物，其中所述非芳族环状化合物包含至少一个氮原子，所述非稠合芳族化合物包含至少一个氮原子，所述稠合芳族化合物包含至少一个两个芳族环 其被两个二缩合并且至少一个氮原子，由此稠合的芳族化合物包含至少3个芳族环和1个氮原子，以及 由此稠合的芳族化合物包含至少3个芳环和至少2个位于相同芳环中的氮原子。

公开(公告)号：US20120251377A1

公开(公告)日：2012-10-04

申请号：US13074652

申请日：2011-03-29

Applicant: Kuen-Shyang Hwang ,  Li-Hui Cheng ,  Yung-Chung Lu

Inventor： Kuen-Shyang Hwang ,  Li-Hui Cheng ,  Yung-Chung Lu

IPC: C22C1/05

CPC classification number: C22C33/0285 ,  B22F1/0011 ,  B22F3/16 ,  B22F2201/30 ,  B22F2998/10 ,  C22C38/02 ,  C22C38/04 ,  C22C38/44 ,  C22C38/48 ,  C22C38/58 ,  C23C8/02 ,  C23C8/22 ,  B22F2201/013 ,  B22F2201/20

Abstract: A method for enhancing strength and hardness of powder metallurgy stainless steels comprises steps of fabricating a stainless steel powder into a green compact; placing the green compact in a reducing environment and maintaining the green compact at a sintering temperature to form a sintered body; and placing the sintered body in a carbon-bearing atmosphere and maintaining the sintered body at a carburizing temperature below 600° C. to implant carbon atoms into the sintered body and form carburized regions in the sintered body. Thereby, the strength and hardness of powder metallurgy stainless steels can be improved. As the carburizing temperature is lower than 600° C., chromium would not react with carbon. Therefore, the strength and hardness of powder metallurgy stainless steels can be enhanced and the superior corrosion resistance is still preserved.

Abstract translation: 一种提高粉末冶金不锈钢的强度和硬度的方法包括将不锈钢粉末制成生坯的步骤; 将生坯压坯放置在还原环境中并在烧结温度下保持生坯成型以形成烧结体; 将烧结体置于含碳气氛中，将烧结体保持在600℃以下的渗碳温度，将碳原子注入到烧结体中，在烧结体中形成渗碳区域。 因此，可以提高粉末冶金不锈钢的强度和硬度。 渗碳温度低于600℃时，铬不会与碳反应。 因此，可以提高粉末冶金不锈钢的强度和硬度，并且仍然保持优异的耐腐蚀性。

公开(公告)号：US08236251B2

公开(公告)日：2012-08-07

申请号：US12851355

申请日：2010-08-05

Applicant: Mikio Toda ,  Toshiro Nishi ,  Nobuki Oka ,  Hiroyuki Tsutaya ,  Kuniaki Ara ,  Hiroaki Ohira ,  Kazuya Kurome ,  Naoki Yoshioka

Inventor： Mikio Toda ,  Toshiro Nishi ,  Nobuki Oka ,  Hiroyuki Tsutaya ,  Kuniaki Ara ,  Hiroaki Ohira ,  Kazuya Kurome ,  Naoki Yoshioka

IPC: B01J19/12 ,  B01J8/00 ,  C23C14/00

CPC classification number: G01N21/62 ,  B22F1/0022 ,  B22F2998/10 ,  B22F2999/00 ,  B82Y30/00 ,  C09K5/12 ,  Y10S977/786 ,  Y10S977/787 ,  Y10S977/891 ,  Y10S977/901 ,  B22F1/0018 ,  B22F9/22 ,  B22F9/12 ,  B22F1/02 ,  B22F9/20 ,  B22F2202/11 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2201/013 ,  B22F2201/02

Abstract: Suppression or enhancement of various properties of a liquid fluid is aimed by improving uniform dispersion of nanoparticles by means of making a state in which no oxidized film exists on the surfaces of the nanoparticles to be dispersed in the liquid fluid. The location of the liquid fluid is confirmed with ease by enhancing the brightness of light emission of the fluid through uniform dispersion of the nanoparticles in the liquid fluid containing a material having a flame reaction. In this way, as to liquid fluids utilized in various industries, it is possible to offer a technology to desirably enhance or suppress a property desired to be enhanced and a property desired to be suppressed among various properties that its constituents have.

Abstract translation: 通过改善纳米颗粒的表面上没有氧化膜分散在液体流体中的状态，改善纳米颗粒的均匀分散，目的在于抑制或增强液体流体的各种性质。 通过在含有具有火焰反应的材料的液体流体中纳米颗粒的均匀分散，通过增强流体的发光亮度来容易地确认液体流体的位置。 以这种方式，对于各种工业中使用的液体流体，可以提供一种技术，以期望地提高或抑制期望增强的性质和期望被其成分具有的各种性质之间的抑制性能。