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    • 1. 发明授权
    • Ceramic substrate having a metallic layer thereon and a process for
manufacturing the same
    • 其上具有金属层的陶瓷基板及其制造方法
    • US5008149A
    • 1991-04-16
    • US274481
    • 1988-11-22
    • Yasunori TagaHideya YamaderaKeiji AokiTadashi Hattori
    • Yasunori TagaHideya YamaderaKeiji AokiTadashi Hattori
    • C23C14/02B32B15/04C04B41/52C04B41/88C04B41/89C04B41/90C23C14/06C23C14/16C23C14/58
    • C04B41/009B32B15/04C04B41/52C04B41/89Y10T428/265Y10T428/31678
    • A ceramic substrate and a metallic layer formed thereon are bonded closely by means of a bonding layer formed between the ceramic substrate and the metallic layer. The ceramic substrate comprises either alumina or a ceramic containing alumina, and the metallic layer comprises either molybdenum (Mo) or an alloy composed of molybdenum (Mo) and at least one of titanium (Ti), zirconium (Zr) and niobium (Nb). The bonding layer comprises composite oxides of aluminum and at least one of titanium (Ti), zirconium (Zr) and niobium (Nb) and formed by either a process of (1) forming an intermediate layer comprising at least one of titanium (Ti), zirconium (Zr) and niobium (Nb) between the ceramic substrate and the metallic layer, and subjecting the laminated substance to a heat treatment to a cause a reaction between alumina and the intermediate layer; or (2) forming an alloy layer comprising an alloy of molybdenum (Mo) and at least one of titanium (Ti), zirconium (Zr) and niobium (Nb) directly on the ceramic substrate, and subjecting the laminated substance to a heat treatment to cause a reaction between alumina and at least one of titanium (Ti), zirconium (Zr) and niobium (Nb) contained in the alloy layer.
    • 陶瓷基板和形成在其上的金属层通过形成在陶瓷基板和金属层之间的接合层紧密地接合。 陶瓷基板包括氧化铝或含有氧化铝的陶瓷,金属层包括钼(Mo)或由钼(Mo)和钛(Ti),锆(Zr)和铌(Nb)中的至少一种组成的合金, 。 所述接合层包括铝的复合氧化物和钛(Ti),锆(Zr)和铌(Nb)中的至少一种,并且通过以下工艺形成:(1)形成包含钛(Ti) ,锆(Zr)和铌(Nb)在陶瓷基板和金属层之间,并对叠层物进行热处理以引起氧化铝和中间层之间的反应; 或(2)直接在陶瓷基板上形成包含钼(Mo)和钛(Ti),锆(Zr)和铌(Nb)中的至少一种的合金的合金层,并对层叠物进行热处理 引起氧化铝与合金层中所含的钛(Ti),锆(Zr)和铌(Nb)中的至少一种的反应。
    • 4. 发明授权
    • Gas component detection apparatus
    • 气体成分检测装置
    • US4244918A
    • 1981-01-13
    • US899397
    • 1978-04-24
    • Eturo YasudaSusumu SatoYoshihiro SegawaTadashi HattoriKeiji Aoki
    • Eturo YasudaSusumu SatoYoshihiro SegawaTadashi HattoriKeiji Aoki
    • G01N27/12G01N27/16G01N33/00H01C13/00
    • H01C13/00G01N27/12G01N27/16G01N33/0031
    • A gas component detection apparatus comprises a first and a second gas sensing elements each composed of a metal oxide which exhibits variable electric resistances according to gaseous components and temperatures of gases to be detected. A catalyst is carried at least by the first sensing element for promoting oxidation reactions of the gaseous components of the gases. A first pair of electrodes are inserted into those portions of the first sensing element which are subjected to catalytic action of the catalyst. Into the portions of the second sensing element which are not subjected to catalytic action are inserted a second pair of electrodes. The first pair of electrodes sense a variation in electric resistances resulting from the gaseous components and temperatures of the gases, while the second pair of electrodes detect an electric resistance variation related mainly upon the gas temperatures. Consequently, an output signal reflecting substantially only the gaseous components of the gases is produced by offsetting both of the electric resistances separately sensed utilizing a suitable electric circuit.
    • 气体成分检测装置包括第一和第二气体检测元件,每个气体检测元件由金属氧化物组成,金属氧化物根据气体成分和待检测气体的温度呈现可变的电阻。 催化剂至少由第一感测元件承载,用于促进气体的气体组分的氧化反应。 将第一对电极插入到受催化剂催化作用的第一感测元件的那些部分中。 在不进行催化作用的第二传感元件的部分插入第二对电极。 第一对电极感测由气体组分和气体温度导致的电阻变化,而第二对电极检测主要基于气体温度的电阻变化。 因此,基本上仅反映气体的气体成分的输出信号是通过使用合适的电路单独检测的两个电阻抵消而产生的。
    • 5. 发明授权
    • Gas component detection apparatus
    • 气体成分检测装置
    • US4099922A
    • 1978-07-11
    • US751956
    • 1976-12-17
    • Eturo YasudaSusumu SatoYoshihiro SegawaTadashi HattoriKeiji Aoki
    • Eturo YasudaSusumu SatoYoshihiro SegawaTadashi HattoriKeiji Aoki
    • G01N27/12G01N27/16
    • G01N27/12
    • A gas component detection apparatus for detecting gaseous components of exhaust gases from a combustion device. There is provided a gas component detecting element composed of semiconductive metal oxides and having its outer surface partly exposed to the exhaust gases. A catalyst layer is carried on the larger part of the latter outer surface of the detecting element. A pair of electrodes are provided for sensing the electric resistance exhibited at the portion of the detecting element which carries the catalyst layer. Also another electrode is provided for cooperating with one of the above pair of electrodes to detect the electric resistance exhibited at the portion of the detecting element which does not carry the catalyst layer. The former portion of the detecting element exhibits variable electric resistances resulting from concentrations of the gaseous components and the temperatures of the exhaust gases, while the latter portion thereof exhibits variable electric resistances related mainly upon the temperatures of the exhaust gases. Consequently, an output signal reflecting substantially only the gaseous components of the exhaust gases is produced by offsetting both of the electric resistances separately sensed utilizing a suitable electric circuit.
    • 一种用于检测来自燃烧装置的废气的气体成分的气体成分检测装置。 提供了由半导体金属氧化物构成的气体成分检测元件,其外表面部分地暴露于废气中。 催化剂层承载在检测元件的后一个外表面的较大部分上。 提供一对电极用于感测在携带催化剂层的检测元件的部分处呈现的电阻。 还提供另一个电极,用于与上述一对电极中的一个电极配合,以检测在不携带催化剂层的检测元件的部分处呈现的电阻。 检测元件的前一部分呈现由气体组分的浓度和废气的温度导致的可变电阻,而后者部分呈现出与废气温度有关的可变电阻。 因此,基本上仅反映废气的气体成分的输出信号是通过使用合适的电路单独感测的两个电阻来抵消而产生的。
    • 6. 发明授权
    • Gas component detection apparatus
    • 气体组分检测装置
    • US4066413A
    • 1978-01-03
    • US662956
    • 1976-03-01
    • Yoshihiro SegawaSusumu SatoEturo YasudaTadashi HattoriKeiji Aoki
    • Yoshihiro SegawaSusumu SatoEturo YasudaTadashi HattoriKeiji Aoki
    • F02D41/14G01N27/12G01N27/16
    • F02D41/1455G01N27/12
    • A gas component detection apparatus for detecting gas components contained in an exhaust gas from a combustion device and determining an air-fuel ratio of an air-fuel mixture supplied thereto. A gas component detecting element composed of a semiconductive metal oxide is contacted by the exhaust gas andexhibits variable electric resistances according to the concentrations of the gas components. The electric resistance is taken out as an electric signal through two electrodes disposed either on the surface of the detecting element exposed to the exhaust gas or within the detecting element adjacent that exposed surface. A porous coating layer having an exhaust gas permeability covers the surface of the detecting element exposed to the exhaust gas so as to prevent poisonous substances contained in the exhaust gas from depositing on that exposed surface of the detecting element. The coating layer is formed of a metal oxide having electrically insulating properties and carries therein a catalyst promoting an oxidation reaction of the exhaust gas. The detecting element exhibits an abruptly changed electric resistance when the actual air-fuel ratio of the air-fuel mixture supplied into the combustion device is deviated from a stoichiometrical air-fuel ratio, thereby enabling the control of the air-fuel ratio of the air-fuel mixture.
    • 7. 发明授权
    • Gas component detection apparatus
    • 气体成分检测装置
    • US4322383A
    • 1982-03-30
    • US179222
    • 1980-08-18
    • Eturo YasudaSusumu SatoYoshihiro SegawaTadashi HattoriKeiji Aoki
    • Eturo YasudaSusumu SatoYoshihiro SegawaTadashi HattoriKeiji Aoki
    • G01N27/12G01N27/16G01N33/00H01C13/00
    • H01C13/00G01N27/12G01N27/16G01N33/0031
    • A gas component detection apparatus comprises a first and a second gas sensing elements each composed of a metal oxide which exhibits variable electric resistances according to gaseous components and temperatures of gases to be detected. A catalyst is carried at least by the first sensing element for promoting oxidation reactions of the gaseous components of the gases. A first pair of electrodes are inserted into those portions of the first sensing element which are subjected to catalytic action of the catalyst. Into the portions of the second sensing element which are not subjected to catalytic action are inserted a second pair of electrodes. The first pair of electrodes sense a variation in electric resistances resulting from the gaseous components and temperatures of the gases, while the second pair of electrodes detect an electric resistance variation related mainly upon the gas temperatures. Consequently, an output signal reflecting substantially only the gaseous components of the gases is produced by offsetting both of the electric resistances separately sensed utilizing a suitable electric circuit.
    • 气体成分检测装置包括第一和第二气体检测元件,每个气体检测元件由金属氧化物组成,金属氧化物根据气体成分和待检测气体的温度呈现可变的电阻。 催化剂至少由第一感测元件承载,用于促进气体的气体组分的氧化反应。 将第一对电极插入到受催化剂催化作用的第一感测元件的那些部分中。 在不进行催化作用的第二传感元件的部分插入第二对电极。 第一对电极感测由气体组分和气体温度导致的电阻变化,而第二对电极检测主要基于气体温度的电阻变化。 因此,基本上仅反映气体的气体成分的输出信号是通过使用合适的电路单独检测的两个电阻抵消而产生的。