公开(公告)号：US12077873B2

公开(公告)日：2024-09-03

申请号：US17107034

申请日：2020-11-30

申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

发明人： Kuo-Hsin Lin ,  Li-Duan Tsai ,  Wen-Hsuan Chao ,  Chiu-Ping Huang ,  Pin-Hsin Yang ,  Hsiao-Chun Huang ,  Jiunn-Nan Lin ,  Yu-Ming Lin

IPC分类号： C25B11/075 ,  C01B21/06 ,  C25B1/04 ,  C25B9/73 ,  C25B11/051 ,  C25B11/057 ,  C30B25/06 ,  C30B29/38

CPC分类号： C25B11/075 ,  C01B21/0615 ,  C01B21/0622 ,  C25B1/04 ,  C25B9/73 ,  C25B11/051 ,  C25B11/057 ,  C30B25/06 ,  C30B29/38 ,  C01P2002/02 ,  C01P2002/76

摘要： A method for manufacturing nitride catalyst is provided, which includes putting a Ru target and an M target into a nitrogen-containing atmosphere, in which M is Ni, Co, Fe, Mn, Cr, V, Ti, Cu, or Zn. The method also includes providing powers to the Ru target and the M target, respectively. The method also includes providing ions to bombard the Ru target and the M target for depositing MxRuyN2 on a substrate by sputtering, wherein 0

公开(公告)号：US09822006B2

公开(公告)日：2017-11-21

申请号：US14682245

申请日：2015-04-09

申请人： The Boeing Company

发明人： John J. Vajo ,  Adam Franklin Gross ,  Shanying Cui

IPC分类号： C01B21/06 ,  B01J3/02 ,  B01J3/04

CPC分类号： C01B21/0622 ,  B01J3/02 ,  B01J3/04 ,  C01P2004/16 ,  C01P2004/32 ,  C01P2004/54 ,  C01P2004/64

摘要： Provided is a method and system for making powdered Fe16N2. The method can include sealing iron powder and a fixed amount of ammonia (NH3) gas within a pressure vessel. The pressure of the fixed amount of ammonia gas in the pressure vessel can be elevated so that Fe16N2 can be formed from the iron powder. Use of a pressure vessel and a fixed amount of ammonia gas can provide economic and environmental benefits such as higher conversion rates of iron powder into Fe16N2, reduced ammonia gas use, and reclamation of used ammonia gas.

公开(公告)号：US20150380158A1

公开(公告)日：2015-12-31

申请号：US14754284

申请日：2015-06-29

申请人： Regents of the University of Minnesota ,  UT-BATTELLE, LLC

发明人： Michael P. Brady ,  Orlando Rios ,  Yanfeng Jiang ,  Gerard M. Ludtka ,  Craig A. Bridges ,  Jian-Ping Wang ,  Xiaowei Zhang ,  Lawrence F. Allard ,  Edgar Lara-Curzio

IPC分类号： H01F41/02 ,  H01F41/00 ,  C23C8/26 ,  H01F1/03 ,  C21D1/26 ,  C21D6/00

CPC分类号： C23C8/26 ,  C01B21/0622 ,  C01P2002/72 ,  C01P2006/42 ,  C21D1/26 ,  C21D6/00 ,  C22C33/00 ,  C22C38/00 ,  C22C38/001 ,  C23C28/322 ,  C23C28/34 ,  H01F1/047 ,  H01F1/065

摘要： A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe16N2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).

摘要翻译： 一种方法可以包括在施加的磁场的存在下退火包括铁和氮的材料以形成至少一个Fe 16 N 2相域。 施加的磁场可以具有至少约0.2特斯拉（T）的强度。

公开(公告)号：US20130257573A1

公开(公告)日：2013-10-03

申请号：US13825584

申请日：2011-09-22

申请人： Migaku Takahashi ,  Tomoyuki Ogawa ,  Yasunobu Ogata ,  Akimasa Sakuma ,  Naoya Kobayashi ,  Chammika Ruwan Polwatta Gallage ,  Kaori Kohara

发明人： Migaku Takahashi ,  Tomoyuki Ogawa ,  Yasunobu Ogata ,  Akimasa Sakuma ,  Naoya Kobayashi ,  Chammika Ruwan Polwatta Gallage ,  Kaori Kohara

IPC分类号： H01F7/02 ,  H01F41/02

CPC分类号： H01F7/02 ,  B22F9/22 ,  B22F2998/10 ,  B22F2999/00 ,  B82Y30/00 ,  C01B21/0602 ,  C01B21/0622 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/42 ,  C22C29/16 ,  H01F1/065 ,  H01F1/083 ,  H01F41/02 ,  Y10T428/2982 ,  B22F2201/013 ,  B22F1/0088 ,  B22F2201/016 ,  C22C33/0235 ,  B22F1/0085

摘要： The present invention relates to ferromagnetic particles comprising an Fe16N2 compound phase in an amount of not less than 70% as measured by Mössbauer spectrum, and at least one metal element X selected from the group consisting of Mn, Ni, Ti, Ga, Al, Ge, Zn, Pt and Si in such an amount that a molar ratio of the metal element X to Fe is 0.04 to 25%, the ferromagnetic particles having a BHmax value of not less than 5 MGOe, and a process for producing the ferromagnetic particles, and further relates to an anisotropic magnet or a bonded magnet which is obtained by magnetically orienting the ferromagnetic particles. The ferromagnetic particles according to the present invention can be produced in an industrial scale and are in the form of Fe16N2 particles comprising different kinds of metal elements having a large BHmax value.

摘要翻译： 本发明涉及由Mössbauer光谱测定的不少于70％的Fe 16 N 2化合物相和至少一种选自Mn，Ni，Ti，Ga，Al的金属元素X的铁磁性颗粒， Ge，Zn，Pt和Si，金属元素X与Fe的摩尔比为0.04〜25％，BHmax值为5MGOe以上的铁磁性粒子，以及铁磁性粒子的制造方法 并且还涉及通过磁性取向铁磁性颗粒获得的各向异性磁体或粘结磁体。 根据本发明的铁磁颗粒可以以工业规模生产，并且是包含具有大的BHmax值的不同种类的金属元素的Fe16N2颗粒的形式。

公开(公告)号：US20080241055A1

公开(公告)日：2008-10-02

申请号：US12051915

申请日：2008-03-20

申请人： Mika Kawase ,  Mamoru Satoh

发明人： Mika Kawase ,  Mamoru Satoh

IPC分类号： C01G49/02

CPC分类号： C01G49/02 ,  B82Y30/00 ,  C01B21/0622 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/64

摘要： First, a ferrous iron-containing suspension solution is obtained by mixing an aqueous ferrous salt solution and an aqueous alkali solution containing one or two of an alkali carbonate and an alkali hydroxide. Then, an iron oxyhydroxide particle precursor is obtained by blowing an oxygen-containing gas having an oxygen component proportion of 0.5 to 0.8 into the suspension solution thus obtained to oxidize the ferrous iron in the suspension solution at an oxidation rate of 30 to 65% while the suspension solution is being controlled to fall in a temperature range of −5° C. or higher and lower than 10° C. Thereafter, the iron oxyhydroxide particles 2 are produced from the iron oxyhydroxide particle precursor by blowing an oxygen-containing gas into the suspension solution containing the iron oxyhydroxide particle precursor while the suspension solution is being controlled to fall in a temperature range of 20° C. or higher and lower than 45° C.

摘要翻译： 首先，通过混合含水亚铁盐水溶液和含有一种或两种碱金属碳酸盐和碱金属氢氧化物的碱性水溶液来获得含铁铁悬浮液。 然后，通过将氧成分比例为0.5〜0.8的含氧气体吹入由此获得的悬浮液中，以30〜65％的氧化速率氧化悬浮液中的亚铁，得到氢氧化铁前体，同时 将悬浮液控制在-5℃以上且低于10℃的温度范围内。此后，通过将含氧气体吹入氧化氢氧化镁颗粒前体而产生氧化氢氧化铁颗粒2 在悬浮液被控制在20℃以上且低于45℃的温度范围内时，含有羟基氧化铁颗粒前体的悬浮液。

公开(公告)号：US20050123754A1

公开(公告)日：2005-06-09

申请号：US10991511

申请日：2004-11-19

申请人： Kenji Masada ,  Takafumi Amino ,  Akira Nagatomi

发明人： Kenji Masada ,  Takafumi Amino ,  Akira Nagatomi

IPC分类号： H01F1/01 ,  B22F9/00 ,  C01B21/06 ,  C22C29/16 ,  G11B5/706 ,  H01F1/047 ,  H01F1/053 ,  H01F1/06 ,  C01G49/02

CPC分类号： C01B21/0622 ,  B82Y30/00 ,  C01P2004/64 ,  C01P2006/37 ,  C01P2006/42 ,  G11B5/70626 ,  H01F1/065 ,  Y10T428/12181 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995

摘要： An iron nitride magnetic powder comprised primarily of Fe16N2 phase is characterized in that its coercive force Hc is 200 KA/m or greater and bulk switching field distribution BSDF is 2 or less. The magnetic powder can be produced by allowing a nitriding reaction of Fe particles with a nitrogen-containing gas for producing nitrided particles of primarily Fe16N2 phase to proceed under an increased pressure of 0.1 MPa or greater. The enhanced properties of the iron nitride magnetic powder make it suitable as a magnetic material for high-density magnetic recording media.

摘要翻译： 主要由Fe 11 N 2 N 2相组成的氮化铁磁粉的特征在于其矫顽力Hc为200KA / m以上，体积切换场分布BSDF为2 或更少。 可以通过使Fe颗粒与含氮气体进行氮化反应来制造主要为Fe 16 N 2 N 2相的氮化颗粒来制造磁粉，以在增加的 压力为0.1MPa以上。 氮化铁磁粉的增强性能使其适合用作高密度磁记录介质的磁性材料。

公开(公告)号：US3681018A

公开(公告)日：1972-08-01

申请号：US3681018D

申请日：1970-06-18

申请人： PHILIPS CORP

发明人： KNAUFF KARL-GEORG

IPC分类号： C01B21/06 ,  G11B5/64 ,  H01F1/03

CPC分类号： G11B5/653 ,  C01B21/0622 ,  C01P2004/10 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/42 ,  H01F1/0311 ,  Y10S428/90

摘要： IT IS PROPOSED TO USE A POWDER OF IRON NITRIDE, FE4N, CONSISTING OR ROD-SHAPED PARTICLES AND HAVING A LONGITUDINAL AXIS OF FROM 0.5 TO 2 MICRONS, WHICH LONGITUDINAL AXIS IS AT LEAST 5 TIMES AS LONG AS THE LARGEST DIAMETER OF ANY CROSS-SECTION OF THE PARTICLE IN QUESTION AT RIGHT ANGELS TO SAID AXIS, AS A MATERIAL FOR MAGNETIC RECORDING. THE INVENTION FURTHERMORE RELATES TO A METHOD OR PREPARING SUCH A POWDER. ACCORDING TO THIS METHOD, A POWDER OR IRON OXIDE OR IRON OXIDE HYDRATE, THE PARTICLES OF WHICH HAVE APPROXIMATELY THE SAME SHAPE AND DIMENSIONS AS THE ABOVE-MENTIONED IRON NITRIDE PARTICLES, IS REACTED IN A FLUID BED AT A TEMPERATURE BETWEEN 350*C. AND 400* C. WITH A MIXTURE OF HYDROGEN AND AMMONIA. IF DESIRABLE, THE IRON NITRIDE FORMED IS SUBSEQUENTLY TREATED IN THE SAME FLUID BED WITH A WEAKLY OXIDIZING GAS MIXTURE SO AS TO STABILIZE IT, THAT IS TO SAY, DEPRIVE IT OF ITS PYROPHORIC PROPERTIES.

公开(公告)号：US20180134559A1

公开(公告)日：2018-05-17

申请号：US15850402

申请日：2017-12-21

申请人： Brookhaven Science Associates, LLC

发明人： Kurian Abraham Kuttiyiel ,  Kotaro Sasaki ,  Radoslav R. Adzic

IPC分类号： C01B21/06 ,  H01M4/92 ,  B82Y30/00 ,  B01D9/00

CPC分类号： C01B21/0622 ,  B01D9/0018 ,  B82Y30/00 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/34 ,  H01M4/925

摘要： Nitride stabilized metal nanoparticles and methods for their manufacture are disclosed. In one embodiment the metal nanoparticles have a continuous and nonporous noble metal shell with a nitride-stabilized non-noble metal core. The nitride-stabilized core provides a stabilizing effect under high oxidizing conditions suppressing the noble metal dissolution during potential cycling.

公开(公告)号：US20160207769A1

公开(公告)日：2016-07-21

申请号：US15002220

申请日：2016-01-20

申请人： Enrique J. Lavernia ,  Baolong Zheng ,  Yizhang Zhou ,  Sandia Corporation

发明人： Todd Monson ,  Enrique J. Lavernia ,  Baolong Zheng ,  Yizhang Zhou

IPC分类号： C01B21/06 ,  C04B35/58

CPC分类号： C01B21/0622 ,  C01P2004/62 ,  C01P2004/64 ,  C04B35/58042 ,  C04B35/62615 ,  C04B35/6264 ,  C04B35/645 ,  C04B2235/3852 ,  C04B2235/405 ,  C04B2235/5436 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/666 ,  C04B2235/77 ,  C04B2235/81 ,  H01F1/086

摘要： Bulk iron nitride can be synthesized from iron nitride powder by spark plasma sintering. The iron nitride can be spark plasma sintered at a temperature of less than 600° C. and a pressure of less than 600 MPa, with 400 MPa or less most often being sufficient. High pressure SPS can consolidate dense iron nitrides at a lower temperature to avoid decomposition. The higher pressure and lower temperature of spark discharge sintering avoids decomposition and limits grain growth, enabling enhanced magnetic properties. The method can further comprise synthesis of nanocrystalline iron nitride powders using two-step reactive milling prior to high-pressure spark discharge sintering.

摘要翻译： 大量的氮化铁可以通过放电等离子体烧结从氮化铁粉末中合成。 氮化铁可以在小于600℃的温度下放电等离子体烧结，并且压力小于600MPa，最多400MPa或更低。 高压SPS可以在较低温度下固化浓碳酸铁，以避免分解。 火花放电烧结的较高的压力和较低的温度避免了分解和限制晶粒生长，从而提高磁性能。 该方法还可以包括在高压火花放电烧结之前使用两步反应研磨来合成纳米晶体氮化铁粉末。

公开(公告)号：US09330821B2

公开(公告)日：2016-05-03

申请号：US13140935

申请日：2009-12-21

申请人： Richard David Tilley ,  Soshan Cheong ,  Jintian Ren

发明人： Richard David Tilley ,  Soshan Cheong ,  Jintian Ren

IPC分类号： C01G49/00 ,  B22F9/24 ,  B22F9/26 ,  B22F9/30 ,  H01F1/09 ,  H01F1/33 ,  B82Y25/00 ,  B82Y30/00 ,  C01B21/06 ,  C01B31/30 ,  C01G49/06 ,  C01G49/08 ,  H01F1/00

CPC分类号： H01F1/09 ,  B82Y25/00 ,  B82Y30/00 ,  C01B21/0622 ,  C01B32/914 ,  C01G49/06 ,  C01G49/08 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/40 ,  C01P2006/42 ,  H01F1/0054 ,  H01F1/33

摘要： Methods for preparing magnetic nanoparticles comprising metal, metal carbide, metal nitride, metal sulfide, metal phosphide, metal oxide or a mixture thereof are disclosed. Methods for preparing magnetic nanoparticles having a core comprising metal, metal carbide, metal nitride, metal sulfide, metal phosphide, or a mixture thereof and a metal oxide shell are also disclosed. The methods comprise the solution-phase decomposition of a precursor at elevated temperature then exposure of the reaction mixture to an oxidizing medium, such as air.

摘要翻译： 公开了制备包含金属，金属碳化物，金属氮化物，金属硫化物，金属磷化物，金属氧化物或其混合物的磁性纳米颗粒的方法。 还公开了制备具有包含金属，金属碳化物，金属氮化物，金属硫化物，金属磷化物或其混合物和金属氧化物壳的磁芯的磁性纳米颗粒的方法。 该方法包括在升高的温度下将前体溶解相分解，然后将反应混合物暴露于氧化介质如空气中。