METHOD OF FABRICATING A CERAMIC ARTICLE
    15.
    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

    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。

    ENVIRONMENTAL BARRIER FIBER COATING
    16.
    发明申请
    ENVIRONMENTAL BARRIER FIBER COATING 审中-公开
    环保型纤维涂料

    公开(公告)号:WO2014159556A3

    公开(公告)日:2015-02-26

    申请号:PCT/US2014024169

    申请日:2014-03-12

    Inventor: LAZUR ANDREW J

    Abstract: A fiber having an environmental barrier coating is provided that includes, in one illustrative form, a Hi Nicalon preform assembled in a tooling for chemical vapor infiltration and cleaned to remove sizing char from fibers of the Hi Nicalon preform; a ytterbium doped silicon carbide coat located over the Hi Nicalon preform; a boron nitride interface coat applied over the ytterbium doped silicon carbide coat; and a silicon carbide coat applied over the boron nitride interface coat. In another embodiment the fiber has an environmental barrier coating, comprising: a Hi Nicalon S fiber; wherein the Hi Nicalon S fiber is coated in tow form with yttrium doped silicon carbide; and a silicon doped boron nitride coat applied over the yttrium doped silicon carbide. In a third embodiment the fiber has an environmental barrier coating, comprising: a T-300 carbon fiber preform assembled in tooling for chemical vapor infiltration; alternating layers of silicon carbide and boron carbide are applied over the preform; and a silicon doped boron nitride interface coat applied over the silicon carbide coat.

    Abstract translation: 提供了具有环境屏障涂层的纤维,其包括以一种说明性形式组装在用于化学气相渗透的工具中的Hi Nicalon预制件,并被清洁以从Hi Nicalon预成型件的纤维中除去上浆炭; 位于Hi Nicalon预制件上方的掺镱碳化硅涂层; 施加在掺杂镱的碳化硅外壳上的氮化硼界面涂层; 以及涂覆在氮化硼界面涂层上的碳化硅涂层。 在另一个实施方案中,纤维具有环境阻挡涂层,其包括:Hi Nicalon S纤维; 其中Hi Nicalon S纤维以掺钇掺杂碳化硅的丝束形式涂覆; 并且在掺杂钇的碳化硅上施加掺硅氮化硼涂层。 在第三实施例中,纤维具有环境阻挡涂层,其包括:T-300碳纤维预制件,其组装在用于化学气相渗透的工具中; 将碳化硅和碳化硼的交替层施加在预制件上; 以及涂覆在碳化硅涂层上的硅掺杂的氮化硼界面涂层。

Patent Agency Ranking