Kabushiki Kaisha Toshiba

Yoshiyasu Itoh

Masashi Takahashi

Yutaka Ishiwata

Hironori Suzuki

Tsuneji Kameda

Masataka Tamura

Hideyasu Andoh

Takahiko Shindo

Shoko Suyama

Katsumi Suzuki

Hiroyoshi Narita

Kentaro Matsunaga

Takayuki Fukasawa

Takahiro Hamada

Susumu Nishiwaki

Takanari Okamura

Masato Yoshino

Keizo Shimamura

Satoshi Arai

Masahiro Hanai

Toshiya Imai

Yoshihiko Hirano

Nobuyuki Shimizu

Yasuhiko Taniguchi

Takeshi Udagawa

Yoshikazu Tanno

Masahiro Kan

Yoshio Hanakata

Rikiya Kubo

Yoshihiro Ishizaki

Masahiko Ebina

Keisuke Shimagami

Hitoshi Kanai

Masahiro Saitoh

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

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

According to one embodiment, an electronic apparatus comprises a storage module, a location measuring module, a communication module, and a navigation image generating module. The storage module stores image data corresponding to respective symbols, and data of simplified diagram templates in each of which positions are set on an image showing a shape of a road, symbols being placed at the respective positions. The location measuring module measures a current location. The communication module transmits the current location to an external communication apparatus and receives navigation information on a navigation point corresponding to the current location, the navigation information including a simplified diagram template identification number, symbol identification numbers, and position specification numbers. The navigation image generating module generates the navigation image by reading the simplified diagram template and the image data of the symbols, and placing the image data at positions on the simplified diagram template.

Electronic apparatus and navigation image display method

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 ().

A friction welded joint structure includes friction welded dissimilar first and second metallic materials. The first metallic material has a rigidity greater than the second metallic material. The angle of the first metallic material to a free edge of the first metallic material, at an end portion of a joined surface between the first and second metallic materials, is greater than or equal to 120 degrees or in the range of from 55 degrees to 85 degrees. A reaction layer between the first and second metallic materials is more than zero and less than or equal to 20 &mgr;m. The first metallic material is copper. The second, which has the smaller rigidity, is aluminum.

Joined structure of dissimilar metallic materials

A voltage non-linear resistor unit is composed of at least one of voltage non-linear resistors which is composed of a columnar sintered body formed by molding and sintering a raw material, the sintered body having both end surfaces having a surface roughness in term of arithmetic average surface roughness Ra of 1 to 2 &mgr;m and being formed with an electrode film layer, a terminal metal fitting formed in a predetermined shape and attached to the voltage non-linear resistor, and a soldering material arranged between the voltage non-linear resistors and between joint surfaces of the voltage non-linear resistor and the terminal metal fitting, the joint surfaces being joined by heating the soldering material and applying a load vertically to the joint surfaces while giving a rotation motion thereto. Such voltage non-linear resistor is effectively assembled into an arrester.

Voltage non-linear resistor unit and arrester unit

A sintered body which can be formed into a resistor having a non-linear resistance includes zinc oxide is the principal composition and bismuth, cobalt, antimony, manganese and nickel respectively converted to expressed Bi,O,, Co,O,, Sb,O,, MnO and NiO as auxiliary compositions. The compositions contains 0.05 to 10 mol % of Bi,O,, 0.05 to 10 mol % of Co,O,, 0.05 to 10 mol % of Sb,O,, 0.05 to 10 mol % of MnO and 0.05 to 10 mol % of NiO; the content ratio of the Bi,O,to the NiO is in a mole ratio of 0.5 or more but 1.5 or less, and the content ratio of the MnO to the Sb,O,is in a mole ratio of 1.0 or less. Preferably, the composition contains at least one of 0.5 to 500 ppm of aluminum, converted to Al,, and 10 to 1000 ppm of at least one or the other of boron and silver, converted respectively to B,, and Ag,. The composition may also contain 0.01 to 1000 ppm of at least one of sodium, potassium, chlorine and calcium, converted respectively to Na,, K,, Cl,and Ca,.

Sintered body having non-linear resistance characteristics

A nonlinear resistor is formed by forming side surface insulating layer 2 on a sintered body 1 which contains zinc oxide as a main component and providing a pair of electrodes 3 on upper and lower surfaces of the sintered body 1. The electrodes 3 are formed by plasma thermal spraying of less than 10 kW in an atmosphere in which an oxygen concentration is set to 22 volume % or less. The electrodes 3 are formed of aluminum, copper, zinc, nickel, silver, or their alloy whose average particle size is within 5 .mu.m to 50 .mu.m. Preferably porosity is less than 15%, weight percentage of metal oxide is less than 25%, average film thickness is within 5 .mu.m to 500 .mu.m, average surface roughness is less than 8 .mu.m, and resistivity is less than 15 .mu..OMEGA..multidot.cm. Accordingly, the nonlinear resistor having the excellent discharge withstand can be provided.

Nonlinear resistor with electrodes formed by plasma spraying

A ceramic coating method for coating a ceramic on a metallic substrate is disclosed where a ceramic material is coated on a surface of a metallic substrate by continuously changing the composition of a mixture of a ceramic material and a metal to form a ceramic coating film on a surface of the metallic substrate. A heat treatment then is effected to the ceramic coated metallic substrate so as to induce a residual stress due to compression on a surface of the ceramic coating film, thereby improving the durability of the ceramic coating film.

Ceramic coating method for metallic substrate utilizing a transitional

A thermal barrier coating member to be used for such as a member for a gas turbine comprising a metallic member comprising a super alloy mainly composed of at least one of Ni, Co and Fe, an intermediate layer composed of a MCrAlY alloy (M denotes at least one of Ni, Co and Fe) covering this metallic substrate, and a ceramic layer mainly composed of stabilized zirconia formed on the intermediate layer. A ceramic material having a higher melting point than zirconia is compounded in the ceramic layer as a member for suppressing a reaction sintering of the ceramic layer.

Thermal barrier coating member and method of producing the same

A hydrogen source and carbon dioxide are activated by irradiating a high energy beam onto the hydrogen source formed of hydrogen gas and/or a gaseous hydrogen compound, and onto exhaust gas containing carbon dioxide. The carbon dioxide contained in the exhaust gas is reduced by the activated hydrogen in order to transform the carbon dioxide into a solid or liquid compound and then recover it. It is preferable to dispose mesh materials for promoting the reduction reaction with the carbon dioxide in the exhaust gas in multiple layers within the reaction container. The size of the aperture of the mesh materials is set so as to gradually decrease in the direction of the flow of the mixed gas. It is also preferable to form the cross-sectional area of the reaction container so as to gradually decrease in the direction of the flow of the mixed gas. By the method for removing carbon dioxide, carbon dioxide contained in the exhaust gas can be removed at a high reaction speed without heating or pressurizing the exhaust gas. In addition, reaction products are industrially useful materials, and the exhaust gas can be recovered in the form of a readily recoverable liquid or solid material.

Apparatus and method for removing carbon dioxide contained in exhaust gas

An electroconductive material has at least one portion in which the electrical resistance varies continuously along a gradient. Accordingly, since the material is not formed by directly bonding different elements, it does not have a weak joint portion. Further, since other material characteristics besides electrical resistance also vary along a gradient, for instance, when the material is used at a high or low temperature, a large thermal stress does not generate at an interface between different elements of the material due to a difference of thermal expansion coefficients of such elements. A motor uses the above electroconductive material as a conductor provided in a plural slots. Consequently, starting characteristics of the motor are improved due to the skin effect, and internal stress of the motor due to the thermal expansion of the conductor is decreased. Moreover, the reliability of the motor is improved.

Electroconductive article, having portions with variable resistance and

A corrosion-resistant material for the construction of a member destined to contact molten metal comprises a matrix of a refractory metal and a powder of the oxide of at least one metallic element selected from the group consisting of the same metallic element as the molten metal and metallic elements having lower levels of free energy for the formation of an oxide than the molten metal, the powder of the oxide being dispersed and disposed in the matrix. The refractory metal is W, Mo, Ta, Nb, or Re. The metal oxide is selected from the rare earth metal oxides, namely the oxides of the same metallic elements as the molten metals, and the oxides of Ti, Cr, and Zr. The corrosion-resistant material is produced by a method which comprises mixing a refractory metal powder with a powder of the oxide of at least one metallic element selected from the group consisting of the same metallic element as the molten metal and metallic elements having lower levels of free energy for the formation of an oxide than the molten metal and sintering the resultant mixture under a vacuum or in the atmosphere of an inert gas or in a reducing atmosphere.

Corrosion-resistant material for contact with high temperature molten

A heat-resisting plate employed in various devices that handle high temperature plasma or high energy particles, including a metallic substrate having a cooling structure wherein cooling pipes are embedded against the substrate by a thermal spray layer of the same material as the metallic substrate on one or both faces of the metallic substrate. In forming the heat-resisting plate, the metallic substrate is processed to the form of a plate, cooling pipes are arranged on one or both faces of this metallic substrate, and the cooling pipes are fixed by spraying a thermal spray layer on the face or faces of the metallic substrate where the cooling pipes are arranged, thereby to embed the cooling pipes between the thermal spray layer and the metallic substrate.

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Yokohama, Japan

Yoshiyasu Itoh