1
Narasimham Kalathur S V L, Ma Bao Min: Permanent magnet alloy.. Crucible Materials, June 25, 1986: EP0185439-A1 (3 worldwide citation)

A permanent magnet alloy consisting of, in weight percent, 1 to 10 dysprosium, 20 to 37 neodymium, with the total dysprosium and neodymium content being within the range of 30 to 38, 0.8 to 1.33 boron and balance iron and impurities usual in metal alloys. This alloy is characterized by high resistan ...


2
Chandhok Vijay Kumar, Ma Bao Min: Method of producing fully dense permanent magnet alloy.. Crucible Materials, March 30, 1988: EP0261292-A2 (2 worldwide citation)

A method for producing a fully dense permanent magnet article (12,16) by placing a particle charge of the desired permanent magnet alloy in a container, sealing the container, heating the container and charge and extruding to achieve a magnet having mechanical anisotropic crystal alignment and full ...


3
Ma Bao Min, Narasimhan K S V L: Permanent magnet alloy for elevated temperature applications.. Crucible Materials, August 10, 1988: EP0277416-A2 (1 worldwide citation)

A permanent magnet alloy comprises R2Fe14B, wherein, R is a combination of rare earth elements consisting essentially of, in atomic percent, neodymium 1 to 11 and balance holmium. The alloy may include optional additions of the rare earth elements gadolinium up to 10%, perbium up to 15%, dysprosium ...


4
Chandhok Vijay K, Krause Robert F, Ma Bao Min, Duplessis John J: Method and assembly for producing extruded permanent magnet articles.. Crucible Materials, May 31, 1989: EP0318131-A1

A method for producing a compacted fully dense permanent magnet article (6) by providing a particle (P) charge of a permanent magnet alloy composition from which the article (6) is to be made and placing the charge in a cylindrical container (8) having a generally axially positioned core (12) with t ...


5
Perng Tsong P, Ma Bao Min, Landi James, Chen Qun: Ab5-type rare earth transition intermetallic compounds for the negative electrodes of rechargeable batteries. Santoku, January 23, 2002: EP1173627-A1

Manganese-free rare earth-transition metal AB5-type hydrogen-absorbing alloys having favorable high rate discharge characteristics, suitable for use in rechargeable batteries for electrical vehicles or hybrid electrical vehicles, include compositions of the general formula: R(CouAlvMwNil-u-v-w)z, wh ...


6
Ma Bao Min, Liu Wan Li, Liang Yu Lan: Magnetically anisotropic spherical powder.. Rhone Poulenc Spec Chim, November 30, 1994: EP0626703-A2

A method of forming a magnetically anisotropic powder includes the steps of forming a substantially spherical powder having a major magnetic phase and an average particle size of less than about 200 microns, diffusing hydrogen into the spherical powder at elevated temperatures in an amount sufficien ...


7
Gong Wei, Ma Bao Min: Sm (co, fe, cu, zr, c) compositions and methods of producing same. Santoku America, August 29, 2001: EP1127358-A1

Carbon addition to the rapidly solidified, preferably melt spun, alloy system of Sm(Co, Fe, Cu, Zr) provides for good isotropic magnetic properties. Importantly, these alloys are nanocomposite in nature and comprise the SmCoC2 phase. Thermal processing of these materials can achieve good magnetic pr ...


8
Chang Wen Cheng, Ma Bao Min, Chen Qun, Bounds Charles O: High performance iron-rare earth-boron-refractory-cobalt magnetic materials. Santoku America, June 13, 2001: EP1105889-A1

Magnetic nanocomposite materials including iron, rare earth elements, boron, refractory metals and cobalt which have favorable magnetic properties and are suitable for making bonded magnets are disclosed. Compositions of the present invention can be of the formula: (Nd1-yLay)vFe100-v-w-x-zCowMzBx, w ...


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Ma Bao Min, Liu Wan Li, Liang Yu Lan Wang: Poudre spherique magnetiquement anisotrope, Magnetically anisotropic spherical powder. Rhone Poulenc Specialty Chemicals Co, Santoku Corporation, GOWLING LAFLEUR HENDERSON, October 17, 2006: CA2124395

A method of forming a magnetically anisotropic powder includesthe steps of forming a substantially spherical powder having amajor magnetic phase and an average particle size of less thanabout 200 microns, diffusing hydrogen into the spherical powder atelevated temperatures in an amount sufficient to ...



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