Kabushiki Kaisha Toyota Chuo Kenkyusho

Toyota Jidosha Kabushiki Kaisha

Toshio Horie

Fumio Shimizu

Naoki Nishikawa

Yoshifumi Wakisaka

Ken-ichi Suzuki

Gaku Kitahara

Hiroyuki Mori

Akio Kawaguchi

Nobuaki Suzuki

Reona Takagishi

Masakazu Murase

Kazuyuki Nakanishi

Tadashi Oshima

Masaaki Tani

Kazuaki Nishino

Hideo Yamashita

Takashi Iseki

Hiroshi Makino

Takao Kobayashi

Hiroshi Hohjo

Hiroaki Iwahori

Yoshio Sugiyama

Yuka Yamada

Takamasa Suzuki

Harumi Ueno

Isamu Ueda

Keisuke Tanaka

Kenji Fukui

Shigeki Oshima

Tomoyasu Kitano

Ken-Ichi Suzuki

[Technical Problem] An object is to provide a heat insulation coat having a novel form/structure different from conventional ones. [Solution to Problem] The present invention provides a heat insulation coat having a spongy body that is composed of non-linear pores and a skeleton incorporating the pores. The skeleton is an amorphous body comprising Al, Si, O, and impurities and has an amorphous peak specified by X-ray diffraction analysis at a position of 3.5 &#x212b; or more as the lattice spacing. The heat insulation coat has an apparent density of 1 g/cmor less, a volumetric specific heat of 1,000 kJ/m&#xb7;K or less, and a thermal conductivity of 2 W/m&#xb7;K or less. The spongy body is obtained through forming a base layer, such as by thermal-spraying an aluminum alloy that contains a large amount of Si, and performing an anodizing process by AC/DC superimposition energization on the base layer. The amount of Si in the base layer may be, for example, 16 to 48 mass % with respect to the alloy as a whole. The heat insulation coat of the present invention is excellent in the swing characteristics and may be provided on the inner wall surface of a combustion chamber of an internal combustion engine.

Heat insulation coat, coated member, and method of manufacturing coated member

The present embodiment relates to an internal combustion engine having an anodic oxide coating formed on at least a portion of an aluminum-based wall surface facing a combustion chamber. The anodic oxide coating has a plurality of nanopores extending substantially in the thickness direction of the anodic oxide coating, a first micropore extending from the surface toward the inside of the anodic oxide coating, and a second micropore present in the inside of the anodic oxide coating; the surface opening diameter of the nanopores is 0 nm or larger and smaller than 30 nm; the inside diameter of the nanopores is larger than the surface opening diameter; the film thickness of the anodic oxide coating is 15 &#x3bc;m or larger and 130 &#x3bc;m or smaller; and the porosity of the anodic oxide coating is 23% or more.

Internal combustion engine

A forming method of a thermal insulation film includes a first step of forming an anode oxidation coating film on an aluminum-based wall surface, the anode oxidation coating film including micro-pores each having a diameter of micrometer-scale and nano-pores each having a diameter of nanometer-scale; and a second step of coating a surface of the anode oxidation coating film with a sealant containing filler to seal at least part of the micro-pores and the nano-pores by the sealant so as to form the thermal insulation film.

Forming method of thermal insulation film and internal combustion engine

In an internal combustion engine in which an anodic oxide film () is formed on part or all of a wall surface facing a combustion chamber, the anodic oxide film () has a thickness of 30 &#x3bc;m to 170 &#x3bc;m, the anodic oxide film () has first micropores () having a micro-size diameter, nanopores having a nano-size diameter and second micropores () having a micro-size diameter, the first micropores () and the nanopores extending from a surface of the anodic oxide film () toward an inside of the anodic oxide film () in a thickness direction of the anodic oxide film () or substantially the thickness direction, the second micropores () being provided inside the anodic oxide film (), at least part of the first micropores () and the nanopores are sealed with a seal () converted from a sealant (), and at least part of the second micropores () are not sealed.

Internal combustion engine and manufacturing method therefor

A conductive film comprises a phosphide particle coated film formed by attaching raw material particles including phosphide particles comprising a compound of Ti and/or Fe, and P to a surface of a substrate material. This conductive film exhibits good corrosion resistant conductivity, and can be easily formed at low costs because of comprising the phosphide particle coated film. A corrosion-resistant conduction film comprises an iron-containing titanium phosphide layer containing Ti, Fe and P as essential basic elements. A corrosion-resistant conduction material having this corrosion-resistant conduction film on a surface of a substrate exhibits good corrosion resistance or conductivity. This corrosion-resistant conduction material can be obtained, for example, by a process comprising a plating step of forming an Ni plating layer on a surface of a Ti-based material substrate and a nitriding step of applying nitriding treatment to the Ti-based material substrate after the plating step at not more than 880 deg. C.

Conductive film, corrosion-resistant conduction film, corrosion-resistant conduction material and process for producing the same

There is provided an electron conductive and corrosion-resistant materialcontaining titanium (Ti), boron (B) and nitrogen (N) in an atomic ratio satisfying 0.05&#x2266;[Ti]&#x2266;0.40, 0.20&#x2266;[B]&#x2266;0.40, and 0.35&#x2266;[N]&#x2266;0.55 (provided that [Ti]+[B]+[N]=1). Further, there is provided a method of manufacturing an electron conductive and corrosion-resistant material, wherein boron nitride powder adheres to the surface of a substrateof which at least the surface is made of titanium or a titanium alloy, and is then heated. Furthermore, there is provided a method of manufacturing an electron conductive and corrosion-resistant material, wherein the surface of a substrateof which at least the surface is made of titanium or a titanium alloy is borided and then heated. In addition, there is provided a method of manufacturing an electron conductive and corrosion-resistant material, wherein a TiBlayer formed of TiBparticles is formed by spraying TiBpowder onto a metal substrateand then nitriding the TiBlayer.

Metal separator for fuel cell and method for producing the same

The amorphous carbon film of the present invention is an amorphous carbon film comprising carbon and hydrogen, wherein the amorphous carbon film contains not more than 30 atomic % (excluding 0%) of hydrogen and, when the entire amount of the carbon is taken as 100 atomic %, carbon having an sphybrid orbital is present in an amount of not less than 70 atomic % and less than 100 atomic %. Conductivity is imparted to an amorphous carbon film by controlling the contents of hydrogen, Cspand the like to increase a structure comprising Csp. This amorphous carbon film can be formed by plasma CVD using a reaction gas containing one or more gases selected from a carbocyclic compound gas containing carbon having an sphybrid orbital, and a heterocyclic compound gas containing carbon having an sphybrid orbital and silicon and/or nitrogen. By forming the amorphous carbon film on a surface of a substrate, a conductive member can be obtained.

Amorphous carbon film, process for forming amorphous carbon film, conductive member provided with amorphous carbon film, and fuel cell separator

A heat-resistant magnesium alloy exhibiting excellent heat resistance and castability, which comprises 1.0 to 6.0 % by weight of zinc, 0.4 to 1.0 % by weight of zirconium, 1.5 to 5.0 % by weight of rare earth element, up to 0.3 % by weight of calcium, magnesium being as the balance, and unavoidable impurities.

Heat-resistant magnesium alloy

Growing community of inventors

Nagakute, Japan

Toshio Horie