Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Aero Engines, Ltd.

Canon Kabushiki Kaisha

Kosuke Nishikawa

Akira Fukushima

Tadayuki Hanada

Takayuki Kurimura

Mineaki Matsumoto

Noriyuki Hiramatsu

Azusa Tamugi

Ryoma Nogami

Hiroyuki Kobayashi

Hiroyasu Manako

Nobuki Negoro

Rikako Yoshida

Tetsuya Morifuji

Kyozo Mizuno

Tomoko Ogasahara

A composite material manufacturing method includes: laminating a first sheet () including a first slurry () and a third sheet () including a third slurry (); and heating the first sheet () and the third sheet () that are laminated to a temperature of transforming to ceramics by pyrolysis to form an intermediate body (). The manufacturing method further includes impregnating the intermediate body () with a slurry and heating at a temperature lower than a temperature of transforming to ceramics by pyrolysis.

Composite material, flying body and composite material manufacturing method

A ceramic matrix composite manufacturing method includes: forming a zirconia-sol containing layer that contains zirconia sol, on fabric having an interface layer formed on a periphery of each of a plurality of ceramic-made fibers; impregnating the fabric having the zirconia-sol containing layer formed, with a polymer as a precursor, to form a body; supplying oxygen to the polymer included in the body; heating the body in an inert gas atmosphere to cause a reaction of the polymer to form a matrix; and heating the body in an oxygen atmosphere to remove the interface layer, after supplying the oxygen and heating the body in the inert gas atmosphere, to generate a ceramic matrix composite in which the matrix is interposed between the fibers.

Ceramic matrix composite manufacturing method and ceramic matrix composite

Provided are a coated member in which damage of a coating film can be suppressed in a high temperature environment and the coating may be performed at low cost, and a method of manufacturing the same. A coated member includes a bond coat and a top coat sequentially laminated on a substrate made of a Si-based ceramic or a SiC fiber-reinforced SiC matrix composite, wherein the top coat includes a layer composed of a mixed phase of a (YLn)SiOsolid solution (here, Lnis any one of Nd, Sm, Eu, and Gd) and YSiOor a (YLn')SiOsolid solution (here, Ln&#x2032; is any one of Nd, Sm, Eu, and Gd), or a mixed phase of a (YLn)SiOsolid solution (here, Lnis any one of Sc, Yb, and Lu) and YSiOor a (YLn&#x2032;)SiOsolid solution (here, Ln&#x2032; is any one of Sc, Yb, and Lu).

Coated member and method of manufacturing the same

A manufacturing method for a ceramic matrix composite, having a woven fabric that has multiple fiber bundles and having a matrix that is disposed in the gaps between the fiber bundles, includes: a green body formation step for forming a green body by sintering the woven fabric infiltrated with a polymer that is a precursor to the matrix; and a densification step for further infiltrating the green body with a polymer and sintering same. The densification step includes: a second infiltration step for further infiltrating the green body with a polymer so as to form an infiltrated green body; a drying step for drying the infiltrated green body so as to form a dried green body; a steam treatment step for leaving the dried green body under saturation water vapor pressure so as to form a treated green body; and a sintering step for sintering the treated green body.

Manufacturing method for ceramic matrix composite

Provided are a coated member in which damage of a coating film can be suppressed in a high temperature environment and the coating may be performed at low cost, and a method of manufacturing the same. A coated member includes a bond coat and a top coat sequentially laminated on a substrate made of a Si-based ceramic or a SiC fiber-reinforced SiC matrix composite, wherein the top coat includes a layer composed of a mixed phase of a (YLn)SiOsolid solution (here, Lnis any one of Nd, Sm, Eu, and Gd) and YSiOor a (YLn)SiOsolid solution (here, Lnis any one of Nd, Sm, Eu, and Gd), or a mixed phase of a (YLn)SiOsolid solution (here, Lnis any one of Sc, Yb, and Lu) and YSiOor a (YLn)SiOsolid solution (here, Lnis any one of Sc, Yb, and Lu).

A rectification structure bodyof a flying vehicle is provided with a rectification section, a heat input control sectionand a vacuum thermal insulation section. The rectification sectionhas a rectification surfaceand a back surface. The rectification surfacerectifies airflowfrom a travelling direction. The back surfaceis arranged opposite to the rectification surface. The heat input control sectionis connected to the back surface. The vacuum thermal insulation sectionis connected to the heat input control sectionand its surface is formed of rigid body. In addition, the heat input control sectionis sandwiched between the back surfaceand the vacuum thermal insulation section

Rectification structure body and flying vehicle

A coated member includes a heat-shielding coating layer made of a zirconia-dispersed silicate in which ytterbia-stabilized zirconia is precipitated as a dispersed phase in a matrix phase which is any one of a rare earth disilicate, a rare earth monosilicate, and a mixed phase of the rare earth disilicate and the rare earth monosilicate. The rare earth disilicate is a (Y[Ln])SiOsolid solution wherein Lnis any one of Sc, Yb, and Lu, or a (Y[Ln])SiOsolid solution wherein Lnis any one of Nd, Sm, Eu, and Gd. The rare earth monosilicate is YSiO, [Ln']SiO, a (Y[Ln&#x2032;]b)SiOsolid solution wherein Ln&#x2032; is any one of Sc, Yb, and Lu, or a (Y[Ln&#x2032;])SiOsolid solution wherein Ln&#x2032; is any one of Nd, Sm, Eu, and Gd.

Coated member, coating material, and method of manufacturing coated member

First intake and first exhaust fans provided in a first image forming apparatus and second intake and second exhaust fans provided in a second image forming apparatus having a slower normal image forming speed than the first image forming apparatus are configured with the same specifications, and the numbers of revolutions of the second intake and second exhaust fans are driven and controlled to become less than the numbers of revolutions of the first intake and first exhaust fans.

Image forming apparatus with cooling fan control

A joining method for joining a first member and a second member is provided. The joining method includes a step of providing a first brazing layer on the first member by plating, a step of providing a second brazing layer on the first brazing layer by plating, a step of arranging the first member and the second member to oppose each other across the first brazing layer and the second brazing layer, and a step of melting the first brazing layer and the second brazing layer to join the first member and the second member which are arranged to oppose each other.

Joining method and joining system

A manufacturing method of a TiAl joined body includes: an arranging step and a heating step. The arranging step is a step of arranging a plurality of members which contains a TiAl intermetallic compound and insert materials which contain Ti as a major element, Cu and Ni such that each of the insert materials is inserted between two adjacent members of the plurality of members. The heating step is a step of heating the plurality of members and the insert materials in a non-oxidizing atmosphere at a temperature above melting points of the insert materials and below melting points of the plurality of members.

TiAl joined body and manufacturing method for TiAl joined body

According to this brazing method, a first base member having a non-plated surface, a metal layer for functioning as a diffusion barrier layer, a brazing foil, and a second base member having a surface are arranged in this order so that the non-plated surface of the first base member and the surface of the second base member are faced with each other. The first base member and the second base member are brazed by using the brazing foil. The cost of providing a diffusion barrier layer between the first base member and the brazing foil is thereby reduced.

Brazing method

A brazing method includes fixing a padding plate on a base material such that the padding plate is arranged in a lower position from a groove formed in a repair region of the base material, and heating the base material such that a base material powder is melt, after a paste that base materialcontains the base material powder which is formed from a same material as the base material is filled into the groove. The base material powder filled into groove can be prevented from flowing out from the groove even if being fused since the padding plate is arranged for the base material. Thus, a repair region can be repaired more appropriately.

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Tokyo, Japan

Kosuke Nishikawa