Abstract: Disclosed is an R-T-B—Ga-based magnet material ahoy where R is at least one element selected from rare earth metals including Y and excluding Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and T is one or more transition metals with Fe being an essential element. The R-T-B—Ga-based magnet material alloy includes: an R2T14B phase 3 which is a principal phase, and an R-rich phase (1 and 2) which is a phase enriched with the R, wherein a non-crystalline phase 1 in the R-rich phase has a Ga content (mass %) that is higher than a Ga content (mass %) of a crystalline phase 2 in the R-rich phase. With this, it is possible to enhance the magnetic properties of rare earth magnets that are manufactured from the alloy and reduce variations in the magnetic properties thereof.

Abstract: Disclosed is an R-T-B—Ga-based magnet material ahoy where R is at least one element selected from rare earth metals including Y and excluding Gd, Tb, Dy, Ho, Er, TM, Yb, and Lu, and Tis one or more transition metals with Fe being an essential element. The R-T-B—Ga-based magnet material alloy includes: an R2T14B phase 3 which is a principal phase, and an R-rich phase (1 and 2) which is a phase enriched with the R, wherein a non-crystalline phase 1 in the R-rich phase has a Ga content (mass %) that is higher than a Ga content (mass %) of a crystalline phase 2 in the R-rich phase. With this, it is possible to enhance the magnetic properties of rare earth magnets that are manufactured from the alloy and reduce variations in the magnetic properties thereof.

Abstract: Disclosed is an R-T-B—Ga-based magnet material alloy where R is at least one element selected from rare earth metals including Y, and T is one or more transition metals with Fe being an essential element. The R-T-B—Ga-based magnet material alloy includes: an R2T14B phase 3 which is a principal phase, and an R-rich phase (1 and 2) which is a phase enriched with the R, wherein a non-crystalline phase 1 in the R-rich phase has a Ga content (mass %) that is higher than a Ga content (mass %) of a crystalline phase 2 in the R-rich phase. With this, it is possible to enhance the magnetic properties of rare earth magnets that are manufactured from the alloy and reduce variations in the magnetic properties thereof.

Abstract: The present invention provides a negative electrode material for a nonaqueous electrolyte secondary battery which can improve the cycle properties of a lithium ion secondary battery and a method for manufacturing the negative electrode material. The negative electrode material comprises at least two types of powdery alloy materials A and B in which powdery alloy material A contains Co, Sn, and Fe and does not contain Ti and powdery alloy material B contains Fe, Ti, and Sn, and the proportion of the mass of powdery alloy material B to the sum of the mass of powdery alloy material A and the mass of powdery alloy material B is at least 10 mass % and at most 30 mass %.

Abstract: The present invention provides a negative electrode material for a nonaqueous electrolyte secondary battery which can improve the cycle properties of a lithium ion secondary battery and a method for manufacturing the negative electrode material. The negative electrode material comprises at least two types of powdery alloy materials A and B in which powdery alloy material A contains Co, Sn, and Fe and does not contain Ti and powdery alloy material B contains Fe, Ti, and Sn, and the proportion of the mass of powdery alloy material B to the sum of the mass of powdery alloy material A and the mass of powdery alloy material B is at least 10 mass % and at most 30 mass %.

Abstract: A sample suck pad (chuck) made of resin is stuck and fixed onto the entirety of the lower surface of a chuck base, with an adhesive layer (rubber adhesive double coated tape). The adhesive layer includes a rubber-based adhesive material and has the shearing adhesive strength of 1.96 MPa (20 kgf/cm2). The outer periphery of the adhesive layer is covered with a sealing layer so that the contact of the adhesive layer with the outside is blocked off. A sample is sucked and held on the lower surface of the sample suck pad and this sample is pressed onto a polishing pad, which is fixed on a platen, so as to be polished.

Abstract: A sample suck pad (chuck) made of resin is stuck and fixed onto the entirety of the lower surface of a chuck base, with an adhesive layer (rubber adhesive double coated tape). The adhesive layer includes a rubber-based adhesive material and has the shearing adhesive strength of 1.96 MPa (20 kgf/cm2). The outer periphery of the adhesive layer is covered with a sealing layer so that the contact of the adhesive layer with the outside is blocked off. A sample is sucked and held on the lower surface of the sample suck pad and this sample is pressed onto a polishing pad, which is fixed on a platen, so as to be polished.