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    METHOD FOR PROVIDING CRYSTALLINE SILICON-CONTAINING CERAMIC MATERIAL
    4.
    发明申请
    METHOD FOR PROVIDING CRYSTALLINE SILICON-CONTAINING CERAMIC MATERIAL 审中-公开
    提供含晶硅陶瓷材料的方法

    公开(公告)号：WO2015053937A1

    公开(公告)日：2015-04-16

    申请号：PCT/US2014/057091

    申请日：2014-09-24

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： LIMARGA, Andi M. ,  SHEEDY, Paul ,  SCHMIDT, Wayde R. ,  BERCZIK, Douglas M. ,  KASHYAP, Tania Bhatia ,  HERMANN, Mark A.

    IPC: C04B35/63 ,  C04B35/14 ,  C04B35/64 ,  C04B35/622

    CPC classification number: C04B35/571 ,  C04B35/58 ,  C04B35/806 ,  C04B2235/3821 ,  C04B2235/383 ,  C04B2235/3852 ,  C04B2235/386 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5244 ,  C04B2235/5288 ,  C04B2235/5454 ,  C04B2235/616

    Abstract: Disclosed is a method for providing a crystalline ceramic material. In an example, the method includes providing a silicon-containing preceramic polymer material that can be thermally converted to one or more crystalline polymorphs. The silicon-containing preceramic polymer material includes dispersed therein an effective amount of dopant particles. The silicon-containing preceramic polymer material is then thermally converted to the silicon-containing ceramic material. The effective amount of dopant particles enhance the formation of at least one of the one or more crystalline polymorphs, relative to the silicon-containing preceramic polymer without the dopant particles, with respect to at least one of formation of a selected polymorph of the one or more crystalline polymorphs formed, an amount formed of a selected polymorph of the one or more crystalline polymorphs formed, and a temperature of formation of the one or more crystalline polymorphs.

    Abstract translation: 公开了提供结晶陶瓷材料的方法。 在一个实例中，该方法包括提供可以热转化成一种或多种结晶多晶型物的含硅预陶瓷聚合物材料。 含硅预陶瓷聚合物材料包括分散有效量的掺杂剂颗粒。 然后将含硅预陶瓷聚合物材料热转化成含硅陶瓷材料。 相对于没有掺杂剂颗粒的含硅预陶瓷聚合物，相对于形成所选择的多晶型物的一个或多个结晶多晶型物中的至少一种，掺杂剂颗粒的有效量增强了至少一种， 形成更多的结晶多晶型物，由形成的一种或多种结晶多晶型物的所选多晶型物形成的量以及所述一种或多种结晶多晶型物的形成温度。

    METHOD OF FABRICATING A CERAMIC ARTICLE
    6.
    发明申请
    METHOD OF FABRICATING A CERAMIC ARTICLE 审中-公开
    陶瓷制品的制作方法

    公开(公告)号：WO2015041869A1

    公开(公告)日：2015-03-26

    申请号：PCT/US2014/054254

    申请日：2014-09-05

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： SCHMIDT, Wayde R. ,  SHEEDY, Paul ,  KASHYAP, Tania Bhatia

    IPC: C04B33/13 ,  C04B38/08 ,  C04B38/00

    CPC classification number: C04B35/62844 ,  C04B38/0022 ,  C04B38/0096 ,  C04B2235/48 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2235/77

    Abstract: A method of fabricating a ceramic article includes serially depositing first, second and third different materials within a porous structure using, respectively, first, second and third different processing techniques, to form a ceramic-containing article. The first, second and third materials differ by at least one of composition and microstructure. The first, second and third different processing techniques differ by at least one of modes of delivery of precursor materials into the porous structure and formation mechanisms of the first, second and third different materials from the precursor materials. The deposition of the first material is controlled such that there are first residual voids in the porous structure in which the second material is deposited. The deposition of a second material is controlled such that there are second residual voids in the porous structure in which the third material is deposited.

    Abstract translation: 制造陶瓷制品的方法包括使用第一，第二和第三种不同的加工技术在多孔结构内串联沉积第一，第二和第三不同材料，以形成含陶瓷的制品。 第一，第二和第三材料由组成和微结构中的至少一种不同。 第一，第二和第三种不同的处理技术通过将前体材料递送到多孔结构中的至少一种模式和第一，第二和第三种不同材料与前体材料的形成机理中的至少一种不同。 控制第一材料的沉积，使得在其中沉积第二材料的多孔结构中存在第一残留空隙。 控制第二材料的沉积，使得在其中沉积第三材料的多孔结构中存在第二残留空隙。

    SURFACE TREATMENT FOR AQUEOUS SLURRY-BASED ENVIRONMENTAL BARRIER COATING
    7.
    发明公开
    SURFACE TREATMENT FOR AQUEOUS SLURRY-BASED ENVIRONMENTAL BARRIER COATING 审中-公开

    公开(公告)号：EP3611148A1

    公开(公告)日：2020-02-19

    申请号：EP19192149.3

    申请日：2019-08-16

    Applicant: United Technologies Corporation

    Inventor： BEALS, James T. ,  KASHYAP, Tania Bhatia

    IPC: C04B41/85 ,  F01D5/28

    Abstract: A method for coating a ceramic matrix composite substrate (12) with an environmental barrier coating (18) includes the steps of: treating a surface (20) of a ceramic matrix composite substrate (12) to adjust wettability of the surface (20); and applying an aqueous slurry-based environmental barrier coating (18) to the surface (20). The treating step can be a plasma treatment to remove organic contaminants, and can also be a treatment to modify oxidative state of the surface (20). The treatment can produce a surface (20) for treatment that is hydrophilic and has a contact angle with aqueous-slurry coating materials of less than 40 degrees.

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