Abstract: The present invention provides a nonmagnetic high-hardness alloy having a Ni-based alloy composition containing; by weight %, C of 0.1% or less: Si of 2.0% or less; Mn of 2.0% or less; P of 0.03% or less; S of 0.01% or less; Cr of 30 to 45%; Al of 1.5 to 5.0%; and a balance of unavoidable impurities and Ni, the nonmagnetic high-hardness alloy being subjected to cold or warm plastic working and then ageing treatment, and a method for producing the nonmagnetic high-hardness alloy.

Abstract: The present invention provides a beta-type titanium alloy including, by weight %: Nb: 10 to 25%; Cr: 1 to 10%; at least one of Zr: 10% or less and Sn: 8% or less, satisfying Zr+Sn being 10% or less; and the balance of Ti and inevitable impurities, the alloy having Young's modulus of 100 GPa or less, a process for producing the beta-type titanium alloy, and a beta-type titanium alloy product.

Abstract: The present invention relates to a low density titanium alloy, containing: 7.1 to 10.0 mass % of Al; 0.1 to 3.0 mass % of Fe; 0.01 to 0.3 mass % of O; 0.5 mass % or less of N; 0.5 mass % or less of C; and a remainder being Ti and inevitable impurities; a golf club head using the alloy; and a production method for a low density titanium alloy part using the alloy. The alloy of the invention may further contain 0.01 to 2.0 mass % of V. The alloy of the invention has higher specific strength as compared to the Ti-6Al-4V alloy, is excellent in hot workability, and is reduced in cost.

Abstract: The present invention provides a beta-type titanium alloy including, by weight %: Nb: 10 to 25%; Cr: 1 to 10%; at least one of Zr: 10% or less and Sn: 8% or less, satisfying Zr+Sn being 10% or less; and the balance of Ti and inevitable impurities, the alloy having Young's modulus of 100 GPa or less, a process for producing the beta-type titanium alloy, and a beta-type titanium alloy product.

Abstract: The present invention provides a nonmagnetic high-hardness alloy having a Ni-based alloy composition containing; by weight%, C of 0.1% or less: Si of 2.0% or less; Mn of 2.0% or less; P of 0.03% or less; S of 0.01% or less; Cr of 30 to 45%; Al of 1.5 to 5.0%; and a balance of unavoidable impurities and Ni, the nonmagnetic high-hardness alloy being subjected to cold or warm plastic working and then ageing treatment, and a method for producing the nonmagnetic high-hardness alloy.

Abstract: In a core material for the noise filter, powders of a flat and soft magnetic material is dispersed and buried into an insulating material such as rubber or plastic.

Abstract: Disclosed is soft magnetic alloy powder for electromagnetic and magnetic shield, which can be easily flattened and exhibits good performance over a high frequency band, and a shielding member of good shield effect prepared by dispersing the powder in a matrix of rubber or plastics. Powder of a soft magnetic alloy, which consists essentially of, by weight %, Cr: 0.5.0-20%, Si: 0.01-0.5%, Al: 0.01-20% and the balance of Fe and inevitable impurities, is flattened in an attritor, and is added to the matrix material at a content of 30 wt. % or higher, preferably, as high as possible, and processed to form sheets or molded articles. The shielding member of particularly high flame resistance is prepared by adding soft magnetic alloy powder of alloy composition consisting essentially of, by weight %, Cr: 5-14%, Si: 0.01-0.5%, Al: 0.5-20%, and preferably, REM: up to 0.

Abstract: A novel optical fiber connector part is provided which comprises a ferrule having a capillary hole for holding an optical fiber, the ferrule being formed from a zirconia-alumina composite oxide containing yttria at a content ranging from 2 to 4 mol % in zirconia. In the optical fiber connector part, a sleeve for connecting and holding the ferrule may be formed from zirconia and/or a zirconia-alumina composite oxide. A process for producing the optical fiber connector part is provided wherein the granular zirconia-alumina composed of a particulate zirconia-alumina mixture having an average particle diameter of not more than 1 .mu.m is used as raw material. The granular zirconia-alumina preferably contains alumina at a content ranging from 0.1% to 50% by weight. The process comprises spray-drying a slurry containing a particulate zirconia-alumina mixture having an average particle diameter of not more than 1 .mu.m.