Patent application number | Description | Published |
20090050485 | ANODIZED ALUMINUM ALLOY MATERIAL HAVING BOTH DURABILITY AND LOW POLLUTING PROPERTY - An anodized aluminum alloy material is formed of an aluminum alloy having a Mg content between 0.1 and 2.0% by mass, a Si content between 0.1 and 2.0% by mass, a Mn content between 0.1 and 2.0% by mass, and an Fe, a Cr and a Cu content of 0.03% by mass or below and containing Al and unavoidable impurities as other components, and is coated with an anodic oxide film. Parts of the anodic oxide film at different positions with respect to thickness of the anodic oxide film have different hardnesses, respectively, and the difference in Vickers hardness between a part having the highest hardness and a part having the lowest hardness is Hv 5 or above. | 02-26-2009 |
20090211667 | SURFACE TREATMENT METHOD OF TITANIUM MATERIAL FOR ELECTRODES - Disclosed herein is a surface treatment method of a titanium material for electrodes characterized by including: a titanium oxide layer formation step S | 08-27-2009 |
20090297951 | ANODE FOR LITHIUM ION SECONDARY BATTERY, PRODUCTION METHOD THEREOF, AND LITHIUM ION SECONDARY BATTERY USING THE SAME - Disclosed is anode for use in a lithium ion secondary battery. The anode includes an anode current collector and an anode active material arranged thereon, in which the anode active material contains amorphous carbon and at least one metal dispersed in the amorphous carbon, and the at least one metal is selected from: 30 to 70 atomic percent of Si; and 1 to 40 atomic percent of Sn. The anode gives a lithium ion secondary battery that has a high charge/discharge capacity and is resistant to deterioration of its anode active material even after repetitive charge/discharge cycles. | 12-03-2009 |
20100203424 | CORROSION RESISTANT FILM FOR FUEL CELL SEPARATOR AND FUEL CELL SEPARATOR - The present invention provides: a corrosion resistant film that yields the effect of keeping a low contact resistance for an extended period of time by covering the surface of a fuel cell separator and is excellent in productivity at a low cost; and a separator using the corrosion resistant film. A separator according to the present invention has a corrosion resistant film formed by laminating a corrosion resistant layer and a conductive layer comprising one or more kinds of noble metal elements selected from the group of Au and Pt on the surface of a substrate comprising a metallic material such as Ti, Al, or SUS. The corrosion resistant layer: comprises an alloy of one or more kinds of noble metal elements selected from the group of Au and Pt and one or more kinds of normoble metal elements selected from the group of Nb, Ta, Zr, and Hf; and contains the normoble metal elements by 50 to 90 atomic %. An amorphous alloy is thereby formed, pinholes hardly appear even when the film is formed by an ordinary sputtering method or the like, and the substrate is not exposed. By forming such a corrosion resistant layer as the foundation layer, the separator can reduce the thickness of the conductive layer on the surface and the cost. | 08-12-2010 |
20100206738 | METHOD OF MANUFACTURING A SURFACE TREATED MEMBER FOR SEMICONDUCTOR LIQUID CRYSTAL MANUFACTURING APPARATUS - A method of manufacturing a surface treated member used for semiconductor liquid crystal manufacturing apparatus, capable of forming an anodized film at a higher hardness than that of an anodizing film formed of an existent method, with no problem in view of the generation of cracks, and excellent in the balance between a high hardness and reduced cracks by a simple and convenient method by forming an anodized film to the surface of a member having an aluminum alloy or pure aluminum as a basic material, then dipping the same in pure water, and applying a hydrating treatment to the anodized film, wherein the hydrating treatment is conducted under the conditions satisfying that a treatment temperature is 80° C. to 100° C. and a treatment time (min)≧−1.5×treatment temperature (° C.)+270. | 08-19-2010 |
20100233587 | TITANIUM ELECTRODE MATERIAL AND SURFACE TREATMENT METHOD OF TITANIUM ELECTRODE MATERIAL - It is an object of the present invention to provide a titanium electrode material which is low in cost and is excellent in electric conductivity, corrosion resistance and hydrogen absorption resistance, and a surface treatment method of a titanium electrode material. A titanium electrode material includes: on the surface of a titanium material including pure titanium or a titanium alloy, a titanium oxide layer having a thickness of 3 nm or more and 75 nm or less, and having an atomic concentration ratio of oxygen and titanium (O/Ti) at a site having the maximum oxygen concentration in the layer of 0.3 or more and 1.7 or less; and an alloy layer including at least one noble metal selected from Au, Pt, and Pd, and at least one non-noble metal selected from Zr, Nb, Ta, and Hf, having a content ratio of the noble metal and the non-noble metal of 35:65 to 95:5 by atomic ratio, and having a thickness of 2 nm or more, on the titanium oxide layer. The surface treatment method of a titanium electrode material includes a titanium oxide layer formation step, an alloy layer formation step, and a heat treatment step. | 09-16-2010 |
20120318674 | METHOD FOR FORMATION OF ANODE OXIDE FILM - The present invention provides a method for forming an anode oxide film, in which on the assumption that a direct-current power source is used, a thick anode oxide film can be formed with good productivity within a short time without using special equipment. The method includes allowing a current A | 12-20-2012 |
Patent application number | Description | Published |
20090233113 | ALUMINUM MEMBER OR ALUMINUM ALLOY MEMBER WITH EXCELLENT CORROSION RESISTANCE - To provide an aluminum alloy or aluminum member having an anodic oxide coating formed thereon, the coating having excellent resistance to gaseous corrosion and resistance to plasma and excellent adhesion, and a member for a vacuum apparatus formed of such an aluminum alloy or aluminum member having excellent corrosion resistance. Moreover, a member having a sufficient voltage resistance is provided to stably keep a plasma state in a process using plasma. | 09-17-2009 |
20100018617 | ALUMINUM ALLOY FOR ANODIZING HAVING DURABILITY, CONTAMINATION RESISTANCE AND PRODUCTIVITY, METHOD FOR PRODUCING THE SAME, ALUMINUM ALLOY MEMBER HAVING ANODIC OXIDE COATING, AND PLASMA PROCESSING APPARATUS - The aluminum alloy for anodic oxidation treatment directed to the present invention comprises as alloy elements 0.1 to 2.0% Mg, 0.1 to 2.0% Si, and 0.1 to 2.0% Mn, wherein each content of Fe, Cr, and Cu is limited to 0.03 mass % or less, and wherein the remainder is composed of Al and inevitable impurities. An aluminum alloy more excellent in the durability can be obtained by subjecting the aluminum alloy ingot having the above element composition to a homogenization treatment at a temperature of more than 550° C. to 600° C. or less. An aluminum alloy member can be obtained by forming an anodic oxidation coating on the surface of the aluminum alloy. | 01-28-2010 |
20100119913 | METAL SEPARATOR FOR FUEL CELL AND MANUFACTURING METHOD THEREOF - A metal separator | 05-13-2010 |
20110174627 | METHOD FOR FORMING ANODIC OXIDE FILM, AND ALUMINUM ALLOY MEMBER USING THE SAME - Provided is an anodic oxide processing method in which the generation of cracks is suppressed in an anodic oxide film formed on an aluminum alloy substrate surface, such as an inner wall of a vacuum chamber of a plasma processing device, and an anodic oxide film having low heat reflectivity and a high withstand voltage is formed with high efficiency. The method for forming an anodic oxide film involves forming the anodic oxide film on the surface of a JIS 6061 aluminum alloy substrate in a sulfuric acid solution or a mixed acid solution of sulfuric acid and oxalic acid. The total voltage in the direction of the film thickness is at least 1650 V·μm for the entire film thickness of the anodic oxide film formed. In the method for forming an anodic oxide film in which the anodic oxide film from the boundary surface of the aluminum alloy substrate with the anodic oxide film to the surface of the anodic oxide film and the 25 μm position in the film thickness direction is formed at no more than the electrolysis voltage of 27 V, and the total voltage from the boundary surface to the 25 μm position in the film thickness direction is at least 820 V·μm and no more than 1000 V·μm, an anodic oxide film having a high withstand voltage can be formed to satisfy the heat reflectivity, crack density, processing time, and the desired standards. | 07-21-2011 |
20110220289 | MEMBER FOR PLASMA TREATMENT APPARATUS AND PRODUCTION METHOD THEREOF - A member for a plasma treatment apparatus is provided, which has excellent anti-sticking properties, is suitable, for example, as a lower electrode in CVD apparatuses, has a stable shape as the lower electrode, and can suppress abnormal discharge during plasma treatment. The member for a plasma treatment apparatus comprises a base material formed of an aluminum alloy having a smoothly machined surface and a treated anodic oxide coating provided on the surface of the base material and formed by hydrating an anodic oxide coating formed on the surface of the base material to form microcracks therein. The anodic oxide coating has a leak current density of more than 0.9×10 | 09-15-2011 |