摘要:
A method for producing a surface-modified component includes: a process of forming a thermal sprayed coating on a substrate; a process of irradiating a surface of the thermal sprayed coating with a high energy beam so as to cause an entirety of the thermal sprayed coating and a part of the substrate in a thickness direction to melt and then solidify, and thereby forming a densified modified layer; a process of forming a thermal sprayed coating on the modified layer which has been formed in the latest; and a process of irradiating a surface of the thermal sprayed coating with a high energy beam so as to cause an entirety of the thermal sprayed coating and a part of the modified layer which has been formed in the latest in the thickness direction to melt and then solidify, and thereby forming a densified modified layer.
摘要:
A ceramic substrate (2) is irradiated in an atmospheric air with a laser having a power density of 1.0 × 10 7 - 1.0 × 10 9 W/cm 2 for an action time on an irradiation area of 1.0 × 10 -7 - 1.0 × 10 -5 s to roughen a surface of the ceramic substrate (2), as well as to form an oxide layer (3) on a roughened surface (2a). This yields high adhesion to a thermal sprayed coating formed on the ceramic substrate (2), due to the action of chemical affinity in addition to physical adhesion force of the roughened surface (2a), without causing any great reduction in substrate strength.
摘要:
An electrostatic chuck member having a high adsorption force and superior in response performance (release property) when application of voltage is stopped, comprising an undercoat in the form of a metallic layer on at least one surface of a base member, a lower insulation layer of Al2O3 ceramics on the undercoat, a metallic electrode layer on the insulation layer, an upper insulation layer, which is a topcoat, of Al2O3 ceramics on the electrode layer.
摘要:
A method of producing a self-fusing alloy spray coating member comprising the steps of forming in advance a porous ceramic spray film as a top coat on the surface of a self-fusing alloy spray film formed on a substrate before the self-fusing alloy spray film is subjected to re-fusing treatment, heating the spray film in an atmosphere containing an inert gas controlled to 1 to 300 hPa or by radio frequency induction heating, removing then the ceramic spray film to expose the self-fusing alloy spray film. This member has a uniform film thickness, has small residual quantities of pores and oxide type impurities and has a firm and strong film.
摘要:
A carbon member having an excellent bonding property is provided at its surface with a metal spray coating layer, and comprises a carbon substrate and a spray coating layer made from at least one metal selected from Cr, Ti, V, W, Mo, Zr, Nb and Ta or an alloy thereof, in which the coating layer has a ratio of linear expansion coefficient to carbon of 0.73-1.44 and a large chemical affinity to carbon at its interface.
摘要:
A piezo-electric substrate 1 is mainly comprised of a base material 11, and a film 12 formed on one main surface of the base material 11. In the base material 11, the main surface on which the film 12 is formed is a roughed main surface 11a. The piezo-electric substrate 1 is obtained by forming the film 12 comprised of a material with a coefficient of linear expansion smaller than a coefficient of linear expansion of the base material 11 on the roughened main surface 11a using a thermal spraying method.
摘要:
It is to provide an electrostatic chuck member having a strong adsorption force and an excellent responsibility (release property) in the stop of voltage application and is an electrostatic chuck member comprising a substrate, an undercoat of a metallic layer formed on at least one surface thereof, a lower insulating layer of Al 2 O 3 ceramic formed on the undercoat, a metallic electrode layer formed on the lower insulating layer and an upper insulating layer of Al 2 O 3 ceramic formed on the electrode layer as a topcoat.
摘要翻译:提供一种在施加电压停止时具有强吸附力和极好的责任(释放特性)的静电卡盘部件,并且是一种静电卡盘部件,其包括基板,在其至少一个表面上形成的金属层的底涂层 形成在底涂层上的下部绝缘层Al2O3陶瓷,形成在下绝缘层上的金属电极层和形成在作为顶涂层的电极层上的Al 2 O 3陶瓷的上绝缘层。