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    Coated electrochemical corrosion potential sensor
    4.
    发明授权
    Coated electrochemical corrosion potential sensor 失效
    涂层电化学腐蚀电位传感器

    公开(公告)号：US5848113A

    公开(公告)日：1998-12-08

    申请号：US928112

    申请日：1997-09-12

    申请人： Young Jin Kim ,  Peter Louis Andresen ,  Dennis Michael Gray

    发明人： Young Jin Kim ,  Peter Louis Andresen ,  Dennis Michael Gray

    IPC分类号： G01N27/409 ,  G01N17/02 ,  G01N27/26 ,  G01N27/30 ,  G21C17/02 ,  G21C17/10

    CPC分类号： G01N17/02

    摘要： An electrochemical corrosion potential sensor includes a sensor tip electrically joined to a conductor, and a ceramic insulator joined to the tip around the conductor. A sleeve is joined to the insulator around the conductor, and is electrically insulated from the tip by the ceramic insulator. The insulator has an exposed surface axially separating the tip and sleeve, and a ceramic coating is bonded thereto for preventing dissolution of the insulator by reactor water. In a preferred embodiment, the ceramic insulator is sapphire, and the ceramic coating is yttria-stabilized-zirconia or magnesia-stabilized-zirconia which may be plasma sprayed over the insulator.

    摘要翻译： 电化学腐蚀电位传感器包括电连接到导体的传感器尖端和连接到导体周围的尖端的陶瓷绝缘体。 套管连接到导体周围的绝缘体，并且通过陶瓷绝缘体与顶端电绝缘。 绝缘体具有轴向分离尖端和套筒的暴露表面，并且将陶瓷涂层结合到其上以防止反应器水使绝缘体溶解。 在优选实施例中，陶瓷绝缘体是蓝宝石，并且陶瓷涂层是可以等离子体喷涂在绝缘体上的氧化钇稳定的氧化锆或氧化镁稳定的氧化锆。

    Thermal barrier coatings having an improved columnar microstructure
    10.
    发明授权
    Thermal barrier coatings having an improved columnar microstructure 失效
    具有改进的柱状微观结构的热障涂层

    公开(公告)号：US06180184B2

    公开(公告)日：2001-01-30

    申请号：US08957213

    申请日：1997-10-24

    申请人： Dennis Michael Gray ,  Yuk-Chiu Lau ,  Curtis Alan Johnson ,  Marcus Preston Borom ,  Warren Arthur Nelson

    发明人： Dennis Michael Gray ,  Yuk-Chiu Lau ,  Curtis Alan Johnson ,  Marcus Preston Borom ,  Warren Arthur Nelson

    IPC分类号： C23C410

    CPC分类号： C23C4/12 ,  C23C4/02 ,  C23C4/134 ,  Y10T428/12535 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12806 ,  Y10T428/12931 ,  Y10T428/12944 ,  Y10T428/24314

    摘要： An article having a spallation resistant TBC comprises a metal substrate, such as a high temperature superalloy, and a TBC, such as a coating of yttria stabilized zirconia. The TBC comprises a plurality of plasma-sprayed layers. The TBC has a coherent, continuous columnar grain microstructure, wherein at least one layer has a plurality of continuous columnar grains which have been extended by directional solidification into an adjacent layer. In a preferred embodiment, the coherent, continuous columnar microstructure comprises substantially all of the volume of TBC. A coherent, continuous columnar grain microstructure is also taught wherein at least some of the plurality of coherent, continuous columnar grains which comprise a TBC extend through essentially the entire thickness of the coating. A columnar crack pattern of cracks extending generally normal to the surface of the metal substrate is also developed within TBCs of the present invention in conjunction with the coherent, continuous columnar grain microstructures described.

    摘要翻译： 具有抗剥落TBC的制品包括金属基底，例如高温超合金，以及TBC，例如氧化钇稳定的氧化锆的涂层。 TBC包括多个等离子体喷涂层。 TBC具有连续的连续的柱状晶粒微观结构，其中至少一层具有多个通过定向凝固延伸到相邻层中的连续柱状晶粒。 在一个优选的实施方案中，相干连续的柱状微结构包含基本上所有体积的TBC。 还教导了连续的，连续的柱状晶粒微结构，其中包括TBC的多个连续的连续柱状晶粒中的至少一些基本上延伸穿过涂层的整个厚度。 本发明的TBCs与所描述的连贯的连续的柱状微结构相结合，也开发出大致垂直于金属基底表面的裂纹的柱状裂纹图案。