Abstract: An amorphous alloy soft magnetic powder has a composition represented by (FexCo1-x)100-(a+b)(SiyB1-y)aMb, where M is at least one selected from the group consisting of C, S, P, Sn, Mo, Cu, and Nb, and x, y, a, and b satisfy 0.73?x?0.85, 0.02?y?0.10, 13.0?a?19.0, and 0?b?2.0. A Si—K absorption edge XANES spectrum obtained when performing an XAFS measurement on particles has a peak A present in a range of 1842±1 eV, a peak B present in a range of 1845±1 eV, and a peak C present in a range of 1848±1 eV. An intensity ratio A/C is 0.40 or less, and an intensity ratio B/C is 0.60 or less.

Abstract: A cathode for a plasma gun includes a main body having a first end and a second end, wherein the first end has a protrusion. A method of using the cathode includes mounting the cathode inside a plasma gun and generating an arc discharge via the protrusion.

Abstract: To provide powder for thermal spraying, a method of thermal spraying, and a thermally sprayed coating, which can efficiently work supplying of a dry state powder by using a powder supplying apparatus with a thermal spraying apparatus, and which prevent variation and pulsation or lowering of supplied amount of powder and achieve a required film forming rate, and can obtain a denser coating on the surface of the substrate to be thermally sprayed. [Solution] Powder for thermal spraying 1 is a powder mixture obtained by mixing ceramic powder A whose particle diameter is D1 and ceramic powder B whose particle diameter is D2, wherein D1 is 0.5 to 12??? as a median diameter, D2 is 0.003 to 0.

Abstract: A thermal spray slurry of the present invention contains ceramic particles having an average particle size of 200 nm or more and 5 ?m or less. Precipitates formed when 700 mL of the thermal spray slurry is placed in a 16.5-cm-high cylindrical vessel having a volume of 1 L and is allowed to stand still at room temperature for 1 week are made to disappear by disposing, at a temperature of 20° C. or higher and 30° C. or lower, the cylindrical vessel so as for the central axis of the cylindrical vessel to be horizontal and by rotating the cylindrical vessel at a rotation speed of 100 rpm for 120 minutes around the central axis of the cylindrical vessel to stir the thermal spray slurry in the cylindrical vessel.

Abstract: A thermal spray slurry of the present invention contains ceramic particles in a content of 10% by mass or more and 85% by mass or less, and has a viscosity of 3,000 mPa·s or less. The ceramic particles have an average particle size of, for example, 1 nm or more and 5 ?m or less. The thermal spray slurry may further contain a dispersant. The thermal spray slurry may further contain a viscosity modifier. The thermal spray slurry may further contain a flocculant.

Abstract: To provide powder for thermal spraying, a method of thermal spraying, and a thermally sprayed coating, which can efficiently work supplying of a dry state powder by using a powder supplying apparatus with a thermal spraying apparatus, and which prevent variation and pulsation or lowering of supplied amount of powder and achieve a required film forming rate, and can obtain a denser coating on the surface of the substrate to be thermally sprayed. [Solution] Powder for thermal spraying 1 is a powder mixture obtained by mixing ceramic powder A whose particle diameter is D1 and ceramic powder B whose particle diameter is D2, wherein D1 is 0.5 to 12 ?m as a median diameter, D2 is 0.003 to 0.

Abstract: A thermal spray powder of the present invention contains ceramic particles having an average particle size of 1 ?m or more and 20 ?m or less. The ceramic particles have a flowability index value FT of 3 or more measured by using a powder rheometer. The flowability index value FF is determined by measuring the maximum principal stress and the uniaxial collapse stress of the ceramic particles at normal temperature and normal humidity when 9 kPa of shear force is applied to the ceramic particles, and by dividing the measured maximum principal stress by the measured uniaxial collapse stress.

Abstract: A thermal spray powder of the present invention contains a rare earth element and a group 2 element, which belongs to group 2 of the periodic table. The thermal spray powder, which contains a rare earth element and a group 2 element, is formed, for example, from a mixture of a rare earth element compound and a group 2 element compound or from a compound or solid solution containing a rare earth element and a group 2 element. The thermal spray powder may further contain a diluent element that is not a rare earth element or a group 2 element and is not oxygen, which is at least one element selected, for example, from titanium, zirconium, hafnium, vanadium, niobium, tantalum, zinc, boron, aluminum, gallium, silicon, molybdenum, tungsten, manganese, germanium, and phosphorus.

Abstract: A thermal spray powder of the present invention contains a rare earth element and a diluent element that is not a rare earth element or oxygen, which is at least one element selected, for example, from zinc, silicon, boron, phosphorus, titanium, calcium, strontium, and magnesium. A sintered body of a single oxide of the diluent element has an erosion rate under specific etching conditions that is no less than 5 times the erosion rate of an yttrium oxide sintered body under the same etching conditions.

Abstract: A thermal spray slurry of the present invention contains ceramic particles having an average particle size of 200 nm or more and 5 ?m or less. Precipitates formed when 700 mL of the thermal spray slurry is placed in a 16.5-cm-high cylindrical vessel having a volume of 1 L and is allowed to stand still at room temperature for 1 week are made to disappear by disposing, at a temperature of 20° C. or higher and 30° C. or lower, the cylindrical vessel so as for the central axis of the cylindrical vessel to be horizontal and by rotating the cylindrical vessel at a rotation speed of 100 rpm for 120 minutes around the central axis of the cylindrical vessel to stir the thermal spray slurry in the cylindrical vessel.

Abstract: A thermal spray slurry of the present invention contains ceramic particles in a content of 10% by mass or more and 85% by mass or less, and has a viscosity of 3,000 mPa·s or less. The ceramic particles have an average particle size of, for example, 1 nm or more and 5 ?m or less. The thermal spray slurry may further contain a dispersant. The thermal spray slurry may further contain a viscosity modifier. The thermal spray slurry may further contain a flocculant.

Abstract: A thermal spray powder of the present invention contains ceramic particles having an average particle size of 1 ?m or more and 20 ?m or less. The ceramic particles have a flowability index value FT of 3 or more measured by using a powder rheometer. The flowability index value FF is determined by measuring the maximum principal stress and the uniaxial collapse stress of the ceramic particles at normal temperature and normal humidity when 9 kPa of shear force is applied to the ceramic particles, and by dividing the measured maximum principal stress by the measured uniaxial collapse stress.

Abstract: An yttrium oxide coating has a porosity of 1.5% or less and contains monoclinic yttrium oxide at a ratio of 1% or more and 30% or less to the sum of monoclinic yttrium oxide and cubic yttrium oxide in the coating. The coating is formed, for example, by thermal spraying a thermal spraying material containing yttrium oxide particles and a dispersion medium.

Abstract: A thermal spray powder of the present invention contains a rare earth element and a diluent element that is not a rare earth element or oxygen, which is at least one element selected, for example, from zinc, silicon, boron, phosphorus, titanium, calcium, strontium, and magnesium. A sintered body of a single oxide of the diluent element has an erosion rate under specific etching conditions that is no less than 5 times the erosion rate of an yttrium oxide sintered body under the same etching conditions.

Abstract: A thermal spray powder of the present invention contains a rare earth element and a group 2 element, which belongs to group 2 of the periodic table. The thermal spray powder, which contains a rare earth element and a group 2 element, is formed, for example, from a mixture of a rare earth element compound and a group 2 element compound or from a compound or solid solution containing a rare earth element and a group 2 element. The thermal spray powder may further contain a diluent element that is not a rare earth element or a group 2 element and is not oxygen, which is at least one element selected, for example, from titanium, zirconium, hafnium, vanadium, niobium, tantalum, zinc, boron, aluminum, gallium, silicon, molybdenum, tungsten, manganese, germanium, and phosphorus.

Abstract: A thermal spray powder contains granulated and sintered particles composed of an oxide of any of the rare earth elements having an atomic number from 60 to 70. The average particle size of the primary particles constituting the granulated and sintered particles is 2 to 10 ?m. The crushing strength of the granulated and sintered particles is 7 to 50 MPa. A plasma resistant member includes a substrate and a thermal spray coating provided on the surface of the substrate. The thermal spray coating is formed by thermal spraying, preferably plasma thermal spraying, the thermal spray powder.

Abstract: The present invention provides a cermet coating that can take advantage of the hardness of a powder for a hard reinforcement phase more effectively, and spraying particles for forming the cermet coating. The cermet coating is formed on a base surface and has a hard reinforcement phase and a binder phase. The cermet coating has a Vickers hardness of from 50% to less than 100% of the hardness of the powder for a hard reinforcement phase, and has a surface roughness (center-line average roughness Ra) of less than 3.0. The cermet coating is formed by heating spraying particles prepared as aggregates of a powder for a hard reinforcement phase and a powder for a binder phase, and applying the spraying particles to a base at a supersonic velocity to integrate the powder for a hard reinforcement phase with the powder for a binder phase.

Abstract: Disclosed is a thermal spray powder of granulated and sintered cermet particles. The granulated and sintered cermet particles have an average particle size of 5 to 25 ?m. The particles have a compressive strength of 50 MPa or higher. The particles have a straight ratio of 0.25 or higher, the straight ratio being defined as a value resulting from dividing the maximum thickness of a thermal spray coating obtained, when 150 grams of the thermal spray powder is subjected to thermal spot spraying, by the length of the longest of line segments each of which has both ends thereof on a contour of the spray coating. The granulated and sintered cermet particles have an average aspect ratio of preferably 1.25 or lower. The thermal spray powder is preferably used in applications where a thermal spray coating is formed by high-velocity flame spraying or cold spraying.

Abstract: A thermal spray powder includes granulated and sintered yttria particles obtained by granulating and sintering a raw material powder in air or oxygen. The primary particles constituting the granulated and sintered yttria particles have an average particle size between 0.5 and 1.5 ?m inclusive, and 1.11 times or more as large as the raw material powder. Alternatively, the primary particles have an average particle size between 3 and 8 ?m inclusive.

Abstract: A thermal spray powder including cermet particles, each of which contains metal containing at least one selected from the group consisting of cobalt, chrome, and nickel, and tungsten carbide. The ratio of the summed weight of cermet particles having a particle size of 25 ?m or more in the thermal spray powder with respect to the summed weight of the entire cermet particles in the thermal spray powder is 0.5 to 15%. A thermal spray coating formed from the thermal spray powder is suitable for the formation of a tungsten carbide-based cermet thermal spray coating for use in rolls such as corrugated rolls.