MULTI-LAYER FIBER COATING CONTAINING A SIC AND BN COATING LAYER
    2.
    发明申请
    MULTI-LAYER FIBER COATING CONTAINING A SIC AND BN COATING LAYER 审中-公开
    包含SIC和BN涂层的多层光纤涂层

    公开(公告)号:WO2014159557A1

    公开(公告)日:2014-10-02

    申请号:PCT/US2014/024175

    申请日:2014-03-12

    Inventor: LAZUR, Andrew J.

    Abstract: A multi-layer fiber coating is provided which, in an illustrative embodiment, includes: a ceramic grade Nicalon preform; a silicon carbide coat applied over the fibers; a boron nitride interface coat applied over the silicon carbide coat; wherein the boron nitride coat has a thickness of about 0.5 micron; a silicon carbide coat applied over the boron nitride coat; and wherein the silicon carbide has a thickness of about 2 micron. A multi-layer fiber coating, comprising: a Tyranno Lox-M fiber coated in tow form with 1 micron of silicon carbide by a chemical vapor deposition process and about 1 micron of silicon nitride; a silicon doped boron nitride coat is applied over the about 1 micron of silicon nitride; and wherein the doped boron nitride coat has a thickness of 0.3 micron is also provided. A multi-layer fiber coating, comprising: a T-300 carbon fiber preform; a coat that is graded from PyC to SiC is applied over the T-300 carbon fiber preform; wherein the graded PyC to SiC coat has a thickness of about 1.5 micron; a silicon doped boron nitride interface coat is applied over the graded PyC to SiC coat; wherein the silicon doped boron nitride interface coat has a thickness of about 0.5 micron; and a silicon carbide coat of 2 micron is applied over the silicon doped boron nitride interface coat, is also provided.

    Abstract translation: 提供了多层纤维涂层,其在说明性实施例中包括:陶瓷级Nicalon预制件; 涂覆在纤维上的碳化硅涂层; 施加在碳化硅外壳上的氮化硼界面涂层; 其中所述氮化硼涂层具有约0.5微米的厚度; 涂覆在氮化硼涂层上的碳化硅涂层; 并且其中所述碳化硅具有约2微米的厚度。 一种多层纤维涂层,包括:通过化学气相沉积工艺和约1微米的氮化硅,用丝束形式涂覆1微米碳化硅的Tyranno Lox-M纤维; 在约1微米的氮化硅上施加硅掺杂的氮化硼涂层; 并且还提供了掺杂的氮化硼涂层的厚度为0.3微米。 一种多层纤维涂层,包括:T-300碳纤维预成型体; 将从PyC分级到SiC的涂层施加在T-300碳纤维预制件上; 其中分级的PyC至SiC涂层具有约1.5微米的厚度; 将硅掺杂的氮化硼界面涂层施加在分级的PyC至SiC涂层上; 其中所述硅掺杂的氮化硼界面涂层具有约0.5微米的厚度; 并且还提供2微米的碳化硅涂层施加在掺硅的氮化硼界面涂层上。

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