Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

Tsuneji Kameda

Shoko Suyama

Masahiro Asayama

Masato Yoshino

Kentaro Matsunaga

Norikazu Osada

Yasuo Takagi

Yoshiyasu Itoh

Akio Sayano

Yoshiyasu Ito

Yoshinori Hayakawa

Shigeo Kasai

Hiroyuki Yamauchi

Michiyasu Komatsu

Masahiko Yamada

Takayuki Fukasawa

Kazuya Yamada

Seiji Fujiwara

Hisao Watanabe

Masahiro Kato

Satoshi Miyazaki

Hiroyuki Watanabe

Yuko Kawajiri

Masafumi Komai

Shohei Kobayashi

Riko Inuzuka

Daisuke Horikawa

Hiroshi Ichikawa

Yasuhiro Goto

Wataru Ikeda

Kunihiko Wada

Hideyuki Hirata

Shinobu Sato

Yutaka Ishiwata

Yutaka Abe

Yoshikazu Imai

Keizo Shimamura

Yuuji Hisazato

Nagatoshi Okabe

Shiro Mitsuno

Hiroyuki Isegawa

Takahiko Shindo

Ryoichi Hamazaki

Shunichiro Tanaka

Kenji Komine

Mamoru Egawa

Yoshio Hanakata

Noriyuki Katagiri

Takatoshi Asada

Fumiyo Kuno

Kastuhiro Shinosawa

Kazuo Honaga

Ryoji Yoshimura

Kiyoshi Imai

Masashiko Yamada

There is provided a metal member capable of effectively preventing a coating layer from peeling off from a base. The metal member in an embodiment is a metal member that is used in a solid-oxide type electrochemical stack, and includes: a base formed of ferritic stainless steel; and a metal film provided on the base, in which the metal film includes a first metal layer containing Co and a second metal layer made of Mn, and is a stack in which the first metal layer and the second metal layer are sequentially stacked from the side of the base.

Metal member and manufacturing method thereof

An electrochemical cell according to an embodiment includes a hydrogen electrode, an electrolyte laminated on the hydrogen electrode, a barrier-layer laminated on the electrolyte, and an oxygen electrode laminated on the barrier-layer. The barrier-layer has a porous structure having a thickness of greater than 20 &#x3bc;m and a porosity of greater than 10%.

Electrochemical cell and electrochemical cell stack

A hydrogen production system that achieves a highly-efficient hydrogen production operation even when a time-varying electric power source is used is provided. A hydrogen production system includes a capacitor inputting electric power energy from a renewable power supply, and storing electric power, a pulse voltage generation unit generating a pulse voltage having a set amplitude and a set cyclic period by using the electric power stored in the capacitor, and an electrolytic cell applying the generated pulse voltage, and generating hydrogen by high temperature steam electrolysis by using steam supplied into the electrolytic cell.

Hydrogen production system and method for producing hydrogen

A hydrogen production system that achieves highly-efficient hydrogen production even when hydrogen is produced by using the plurality of cell stacks is provided. A hydrogen production system includes a plurality of cell stacks provided within a reaction containment, the cell stacks generating hydrogen by high temperature steam electrolysis by supplying steam to the plurality of cell stacks, a first flow path guiding the steam to each of the cell stacks, a second flow path causing a carrier gas containing air as a main component to flow into the reaction containment, and a flow regulation device provided at an inlet of the steam in each of the cell stacks, the flow regulation device regulating a flow rate of the steam caused to flow into each of the cell stacks to be uniform.

In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.

Electrical power storage system using hydrogen and method for storing electrical power using hydrogen

A fuel electrode for a solid oxide electrochemical cell includes: an electrode layer constituted of a mixed phase including an oxide having mixed conductivity and another oxide selected from the group including an aluminum-based oxide and a magnesium-based composite oxide, said another oxide having, supported on a surface part thereof, particles of at least one member selected from nickel, cobalt, and nickel-cobalt alloys.

Fuel electrodes for solid oxide electrochemical cell, processes for producing the same, and solid oxide electrochemical cells

There is provided a holding device which can hold a molten corium for a predetermined period even when the molten corium is exposed to heat or undergoes any chemical reaction and which is applicable to practical use. There is provided a holding device provided below a nuclear reactor pressure vessel for holding a molten corium, wherein the holding device includes a base material in contact with a cooling medium, and a multilayer stack structure on the base material. The multilayer stack structure has a first layer having heat-resistant property, a second layer formed on the first layer and having heat-resistant property with lower heat conductivity than that of the first layer, and a third layer formed on the second layer and having corrosion-resistant property and impact-absorbing property.

Holding device

A solid oxide electrochemical cell of an embodiment includes: a cathode; an anode; and an electrolyte layer interposed between the cathode and the anode, wherein a porous region exists in a layer form in a region with a depth of 50% or less of the electrolyte layer from an anode side surface toward the cathode in the electrolyte layer or between the electrolyte layer and the anode.

Solid oxide electrochemical cell

Silicon carbide matrix composite material () comprises silicon carbide matrix () as a host The silicon carbide matrix () comprises first silicon carbide phase () of 0.1 to 10 &#x3bc;m average crystal grain diameter and second silicon carbide phase () of 0.01 to 2 &#x3bc;m average crystal grain diameter. In interstices of silicon carbide crystal grains constituting the silicon carbide matrix (), liberated silicon phase () amounting to, for example, 5 to 50 mass % based on the composite material () is present continuously in network form. This fine structure enables realizing high strength and high toughness of the silicon carbide composite material ().

Silicon carbide matrix composite material, process for producing the same and process for producing part of silicon carbide matrix composite material

The present invention is to provide an anisotropic porous material for a fluid filter which can perform a separation process of a large amount of fluid with high accuracy, which can achieve high flux, and which can improve detergent properties. The anisotropic porous material includes a plurality of pores. Each of the pores has an anisotropic shape in which a major axis and a minor axis can be defined. An arrangement of the pores has an orientation.

Anisotropic porous material

Silicon carbide matrix composite material () comprises silicon carbide matrix () as a host. The silicon carbide matrix () comprises first silicon carbide phase () of 0.1 to 10 &#x3bc;m average crystal grain diameter and second silicon carbide phase () of 0.01 to 2 &#x3bc;m average crystal grain diameter. In interstices of silicon carbide crystal grains constituting the silicon carbide matrix (), liberated silicon phase () amounting to, for example, 5 to 50 mass % based on the composite material () is present continuously in network form. This fine structure enables realizing high strength and high toughness of the silicon carbide composite material ().

The ceramic matrix composite is constructed by a ceramic matrix containing SiC formed by a reaction sintering as a main phase and ceramic fibers comprising SiC compounded in this matrix. A coat layer that has been previously coated on the fibers is disposed between the fiber and the matrix. The layer is provided with a BN layer with a preset thickness covering on the surface of the fiber, a C layer with a preset thickness covering the BN layer, and a SiC layer with a preset thickness covering the C layer.

Ceramic matrix composite and method of manufacturing the same

According to a ceramic fiber reinforced ceramic matrix composite material of the present invention, a ceramic fiber reinforced ceramic matrix composite material,comprises a composite ceramic matrix, and a preform,resulting from a fiber bundle,obtained by bundling a plurality of ceramic fibers,and disposed therein, and is characterized in that a first ceramic matrix M,is formed in an inner space of the fiber bundle,and at a region adjacent to an outer periphery thereof, and a second ceramic matrix M,is formed in an inner space of the preform,and at an outer peripheral region thereof, the space and region of the preform being defined except for those of the fiber bundle. Also characteristically, ceramic fibers are compositely disposed in a fiber volume fraction (Vf) of greater than 10% in a reaction-sintered ceramic matrix. It is further preferred that the composite material be provided on a surface thereof with a coat layer composed solely of a ceramics and having a thickness of not less than 50 &mgr;m.

Ceramic fiber reinforced ceramic matrix composite material and method of producing the same

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Tokyo, Japan

Tsuneji Kameda