Mitsubishi Heavy Industries Aero Engines, Ltd.

Azusa Tamugi

Tadayuki Hanada

Takayuki Kurimura

Mineaki Matsumoto

Akira Fukushima

Kosuke Nishikawa

Ryoma Nogami

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

A coating method includes depositing a slurry including a coarsely particulate ceramic and a finely particulate ceramic on a base material configured with an oxide-based ceramics matrix composite such that a proportion of coarse particles decreases towards a surface of the base material; forming a bond coating by performing a heat treatment on the base material on which the slurry has been deposited; and forming a top coating by thermally spraying a ceramic onto the bond coating. The oxide-based ceramics matrix composite is an alumina silica type oxide-based ceramics matrix composite. The coarsely particulate ceramic and the finely particulate ceramic are alumina-based powder.

Coating method, coating layer, and turbine shroud

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

A method for constructing an abradable coating comprises: a slurry layer formation step Sin which a slurry layeris formed on the surface of a base materialusing a slurry containing ceramic particles and a solvent; a calcination step Sin which the slurry layerformed on the surface of the base materialis sintered and a sintered layerto be a portion of an abradable coating layeris formed; and a slurry removal step Sin which extraneous slurry is removed after the abradable coating layerhas been formed on the surface of the base material, a plurality of the sintered layershaving been laminated in the abradable coating layerthrough a plurality of repeated cycles of the slurry layer formation step Sand the calcination step S

Method for constructing abradable coating, and shroud

A method for implementing an abradable coating comprising: a pattern-forming step in which, using a slurry containing ceramic particles and solvent, a slurry pattern is formed on the surface of a thermal barrier coating layer; and a firing step in which the slurry pattern formed on the surface of the thermal barrier coating layer is fired to form an abradable coating layer. A ceramic material included in the thermal barrier coating layer and ceramic particles included in the abradable coating layer are of the same type.

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Aichi, Japan

Azusa Tamugi