Noritake Co., Ltd.

Chubu Electric Power Company, Inc.

Akihiro Kawahara

Shigeo Nagaya

Shinji Kato

Hirokazu Watanabe

Hiroshi Seo

Tsuyoshi Hondo

Kouji Inukai

Provided is a technique to manufacture an additive manufactured fired body in which the occurrence of deformation or the like is suppressed at a high level. Provided is a method for manufacturing an additive manufactured fired body, the method including a manufacturing step of manufacturing an additive manufactured object by using an additive manufacturing powder, and a firing step of obtaining the additive manufactured fired body by firing the additive manufactured object. In the manufacturing step, a supporterthat supports the additive manufactured objectis shaped together with the additive manufactured objectso as to surround the additive manufactured objectby using the additive manufacturing powder.

Additive manufactured fired body, and method for manufacturing the additive manufactured fired body

According to the present invention, an additively manufactured ceramic core having both strength and collapsibility, and meltability and moreover having surface roughness improved is provided. The additively manufactured ceramic core disclosed herein is an additively manufactured ceramic core to be used as a core when manufacturing a metal casting and includes a central part corresponding to an additively manufactured fired body of a predetermined ceramic powder, a first layer covering at least a part of the central part, and a second layer formed on a surface layer of the first layer. When an average erosion rate corresponding to an average value of erosion rates calculated from an expression: erosion rate (μm/g)=B/A in which A g represents a projection quantity of projection particles and B μm represents an erosion depth in a fragility test is used, the average erosion rate of the first layer is lower than that of the central part and the average erosion rate of the second layer is higher than that of the first layer. The second layer has a surface roughness Ra of 10 μm or less.

Additively manufactured ceramic core and manufacturing method for the ceramic core

A support for an oxygen separation membrane element to support a dense and cylindrical electrolytic membrane having oxygen ion permeability, comprises a base axially extending and having a cylindrical surface extending axially, and a plurality of ribs formed on the cylindrical surface of the base, radially projecting and axially extending, for supporting the electrolytic membrane at their ends being radially distant from the cylindrical surface of the base.

Support for oxygen separation membrane element and the element using the same

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Nagoya, Japan

Akihiro Kawahara