Ceramic layer systems, particularly for gas sensors

    公开(公告)号:US5998012A

    公开(公告)日:1999-12-07

    申请号:US716376

    申请日:1996-09-19

    摘要: A ceramic layer system including at least two layers having respective ion conductivities which are substantially different includes a substrate layer composed of a ceramic material and having substantially no ion conductivity; and at least one conducting layer positioned adjacent to the substrate layer, containing coated ceramic particles composed of ceramic particles composed of a ceramic material having no substantial ion conductivity which are coated with a material having a substantial ion conductivity so that each conducting layer of the at least one conducting layer has a continuous phase after sintering composed of the material which has a substantial ion conductivity and so that the at least one conducting layer has an ion conductivity effective to conduct ions. A method of producing a gas sensor for detecting small quantities of at least one gas in gas mixtures includes providing a substrate layer composed of ceramic particles composed of a material having substantially no ion conductivity; applying a layer composed of coated ceramic particles onto the substrate layer, the coated ceramic particles being composed of ceramic particles composed of a material that has no substantial ion conductivity coated with a material which has a substantial ion conductivity at the operating temperature of the gas sensor; applying at least one functional layer onto the layer composed of coated ceramic particles to provide a green body; preheating the green body to remove binding agents, plastifying agents, and any additional organic constituents; and sintering the green body after preheating by heating to a temperature effective to sinter the green body so that the layer comprised of coated ceramic particles has a continuous phase comprised of the material which has a substantial ion conductivity.

    Sensor element, in particular a planar gas sensor element
    10.
    发明申请
    Sensor element, in particular a planar gas sensor element 审中-公开
    传感器元件,特别是平面气体传感器元件

    公开(公告)号:US20050160793A1

    公开(公告)日:2005-07-28

    申请号:US10504942

    申请日:2002-12-03

    摘要: A sensor element, in particular a planar gas sensor element, having a sensor structure is described, which is heatable by a heater structure. A first spacer layer is provided between the heater structure and the sensor structure, the spacer layer having a first recess in the area of the heater structure into which a first inlay, which electrically insulates the heater structure from the sensor structure, is inserted.

    摘要翻译: 描述了具有传感器结构的传感器元件,特别是平面气体传感器元件,其可通过加热器结构加热。 第一间隔层设置在加热器结构和传感器结构之间,间隔层在加热器结构的区域中具有第一凹槽,第一嵌体将加热器结构与传感器结构电绝缘。