Mitsubishi Heavy Industries Limited

Toshirou Kobayashi

Toyoaki Yasui

Yoshihiro Wada

Katsuyasu Hananaka

Yozo Nakamura

Yukio Kodama

Masanobu Misaki

Takuya Moriga

Hideki Itou

Tomoyuki Kajiwara

A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even 1000&#xb0; C. or higher and also having very high wear resistance.

High wear resistant hard film

A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even at 1000&#xb0; C. or higher and also having very high wear resistance.

Disclosed is a fuel cell stack, comprising a fuel cell laminate body prepared by laminating a plurality of unit cells each having a solid polymer membrane sandwiched between electrodes and a fastening means for fastening the fuel cell laminate body in the direction of lamination of the unit cells, wherein the fastening means includes support members equipped with flanges and arranged at the upper and lower edges of the fuel cell laminate body, thin plates joined to the support members at the upper and lower end portions of the fuel cell laminate body, and fastening bolts for fastening the support members in the vertical direction of the fuel cell laminate body.

Fuel cell stack with fastening means including support members and flanges

Growing community of inventors

Hiroshima-ken, Japan

Toshirou Kobayashi