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1. (WO2019047295) METHOD FOR PREPARING SAMARIUM-COBALT COMPOUND NANOPARTICLE HAVING ADJUSTABLE COMPOSITION AND PARTICLE SIZE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/047295 International Application No.: PCT/CN2017/104333
Publication Date: 14.03.2019 International Filing Date: 29.09.2017
IPC:
B22F 9/14 (2006.01) ,B22F 1/00 (2006.01) ,B82Y 30/00 (2011.01) ,B82Y 40/00 (2011.01)
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9
Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02
using physical processes
14
using electric discharge
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1
Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
B PERFORMING OPERATIONS; TRANSPORTING
82
NANO-TECHNOLOGY
Y
SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; MEASUREMENT OR ANALYSIS OF NANO-STRUCTURES; MANUFACTURE  OR TREATMENT OF NANO-STRUCTURES
30
Nano-technology for materials or surface science, e.g. nano-composites
B PERFORMING OPERATIONS; TRANSPORTING
82
NANO-TECHNOLOGY
Y
SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; MEASUREMENT OR ANALYSIS OF NANO-STRUCTURES; MANUFACTURE  OR TREATMENT OF NANO-STRUCTURES
40
Manufacture or treatment of nano-structures
Applicants:
北京工业大学 BEIJING UNIVERSITY OF TECHNOLOGY [CN/CN]; 中国北京市 北京市朝阳区平乐园100号 No. 100 Pingleyuan Chaoyang District Beijing 100124, CN
Inventors:
岳明 YUE, Ming; CN
吴琼 WU, Qiong; CN
刘卫强 LIU, Weiqiang; CN
Agent:
北京思海天达知识产权代理有限公司 BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD.; 中国北京市 北京市朝阳区平乐园100号北京工业大学旧图东配楼302室 Room 302, the East Wing of Old Library Beijing University of Technology No. 100 Pingleyuan, Chaoyang District Beijing 100124, CN
Priority Data:
201710801608.807.09.2017CN
Title (EN) METHOD FOR PREPARING SAMARIUM-COBALT COMPOUND NANOPARTICLE HAVING ADJUSTABLE COMPOSITION AND PARTICLE SIZE
(FR) PROCÉDÉ DE PRÉPARATION DE NANOPARTICULES DE COMPOSÉ DE SAMARIUM-COBALT PRÉSENTANT UNE COMPOSITION ET UNE TAILLE DE PARTICULE RÉGLAGES
(ZH) 一种成分和粒度可调控的钐钴化合物纳米颗粒的制备方法
Abstract:
(EN) A method for preparing samarium-cobalt compound nanoparticles having an adjustable composition and particle size, belonging to the technical field of nano permanent magnet material preparation. A samarium-cobalt alloy prepared by elemental samarium and cobalt metal smelting is used as the raw material to prepare various samarium-cobalt compound nanoparticles with an average particle size of less than 100 nanometers and being adjustable such as Sm2Co7, SmCo5, SmCo7, Sm2Co17 and the like by means of evaporative condensation manners such as in-situ formation and in-situ collection under the anaerobic conditions of high purity inert gas protection. This method has a simple process and a short production cycle, and provides high-purity inert gas protection throughout the whole manufacturing process, avoiding oxidation, providing products having a good comprehensive magnetic performance.
(FR) L'invention concerne un procédé de préparation de nanoparticules de composé de samarium-cobalt présentant une composition et une taille de particule réglages, appartenant au domaine technique de la préparation de matériau à aimant permanent nanométrique. Un alliage de samarium-cobalt préparé par fusion élémentaire des métaux samarium et cobalt est utilisé en tant que matière première en vue de préparer diverses nanoparticules de composé de samarium-cobalt dotées d'une taille de particule moyenne inférieure à 100 nanomètres et pouvant être réglées, telles que Sm2Co7, SmCo5, SmCo7, Sm2Co17 et analogues, au moyen de techniques de condensation par évaporation telles que la formation in situ et la collecte in situ dans les conditions anaérobies de protection de gaz inerte de haute pureté. Le procédé présente un processus simple et un cycle de production court, et fournit une protection de gaz inerte de haute pureté pendant tout le processus de fabrication, évitant l'oxydation, fournissant des produits présentant une performance magnétique complète satisfaisante.
(ZH) 一种成分和粒度可调控的钐钴化合物纳米颗粒的制备方法,属于纳米永磁材料制备技术领域。采用单质钐和钴金属熔炼制备的钐钴合金为原料,在高纯度惰性气体保护的无氧条件下,以原位生成、原位收集的蒸发冷凝的方式制备出Sm 2Co 7、SmCo 5、SmCo 7、Sm 2Co 17等多种平均粒径小于100纳米且粒度可控的钐钴化合物纳米颗粒。这种方法工艺简单,生产周期短,同时全过程保持高纯度惰性气体保护,避免氧化,产品的综合磁性能良好。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)