Method of detecting oxygen and an oxygen sensor therefor
    4.
    发明授权
    Method of detecting oxygen and an oxygen sensor therefor 失效
    检测氧气和氧传感器的方法

    公开(公告)号:US4347495A

    公开(公告)日:1982-08-31

    申请号:US205953

    申请日:1980-09-30

    IPC分类号: G01N27/12 H01L7/00

    CPC分类号: G01N27/12

    摘要: An oxygen sensing element has a body of chromium-rich zinc chromite and electrodes in contact with it for sensing the electrical resistance. At elevated temperatures, the resistance varies with oxygen concentration. A rare earth oxide dopant, preferably 15% mole percent Lanthanum 10 oxide, stabilizes and improves performance.

    摘要翻译: PCT No.PCT / GB80 / 00017 Sec。 371日期1980年9月30日 102(e)1980年9月23日PCT文件1980年1月31日PCT公布。 出版物WO80 / 01610 日期1980年8月7日。氧传感元件具有富含铬的亚铬酸铬体和与之接触的电极,用于感测电阻。 在升高的温度下,电阻随氧气浓度而变化。 稀土氧化物掺杂剂,优选15%摩尔百分比的镧10氧化物,稳定并提高性能。

    High-strength and temperature-change resistant ceramic formed body,
especially of mullite, its production and use
    5.
    发明授权
    High-strength and temperature-change resistant ceramic formed body, especially of mullite, its production and use 失效
    高强度耐温变陶瓷成型体,特别是莫来石,其生产和使用

    公开(公告)号:US4421861A

    公开(公告)日:1983-12-20

    申请号:US150850

    申请日:1980-05-19

    CPC分类号: F01D5/284 C04B35/185

    摘要: A ceramic formed body having high temperature change resistance and stren and being composed of a ceramic matrix with dispersed particles of ZrO.sub.2, HfO.sub.2, or mixture thereof, is formed of a powdered ceramic material which is a precursor to the matrix material of the ceramic matrix, mixed with a compound which can form ZrO.sub.2, HfO.sub.2 or mixture thereof upon reaction with the ceramic material, and thereafter densely sintered below the reaction temperature. The sintered body is then heat treated above the reaction temperature to convert the precursor ceramic material into the matrix material and form the ceramic body with in situ formation of the dispersed particles.

    摘要翻译: 具有耐高温性和强度的陶瓷成形体由具有分散的ZrO 2,HfO 2或它们的混合物的陶瓷基体组成,由陶瓷基体的基体材料的前体粉末陶瓷材料形成, 与可以与陶瓷材料反应形成ZrO 2,HfO 2或其混合物的化合物混合,然后在反应温度以下密实烧结。 然后将烧结体在反应温度以上进行热处理,以将前体陶瓷材料转化为基体材料,并在原位形成分散的颗粒形成陶瓷体。