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1. 发明申请

WO1994012448A1 PROCESS FOR PRODUCING CERAMIC PRODUCT 审中-公开
标题翻译：生产陶瓷制品的工艺
公开(公告)号：WO1994012448A1
公开(公告)日：1994-06-09
申请号：PCT/JP1993001730
申请日：1993-11-26
申请人： TONEN CORPORATION , KAYA, Hiroshi; , SATO, Kiyoshi; , MOROZUMI, Hiroki; , TEZUKA, Atsushi; , AOKI, Tomoko; , NAKAHARA, Hirohiko; , SUZUKI, Tadashi; , ISODA, Takeshi;
发明人： TONEN CORPORATION
IPC分类号： C04B35/58
CPC分类号： C04B41/009 , C04B35/589 , C04B35/80 , C04B35/806 , C04B41/4554 , C04B41/5053 , C04B41/52 , C04B41/81 , C04B41/87 , C04B41/89 , C04B41/4531 , C04B41/524 , C04B35/00 , C04B35/58 , C04B38/00
摘要： A ceramic product is produced by mixing a preform of metallic or ceramic fibers or a porous ceramic with at least one polysilazane (1) having a number-average molecular weight of 20 to 3,000 and a cold viscosity of less than 1 Pa.s and selected from among a polysilazane mainly comprising repeating units of the formula -[(SiH2)n(NH)r]- (wherein n and r are each 1, 2 or 3) and derivatives based thereon, such as copolymers, modified polymers and cross-linked polymers, and at least one polysilazane (2) selected from among ones having a number-average molecular weight of 200 to 100,000 and a cold viscosity of 100 Pa.s or above and solid ones, impregnating the mixture with a polysilazane-base polymer mixture having a number-average molecular weight of 200 to 3,000 and a cold viscosity of 100 Pa.s or less, hardening the resulting mixture by cross-linking, firing the same into a ceramic, and repeating these operations. Examples of the polysilazanes include inorganic polysilazane, inorganic polysiloxazane, polyorgano(hydro)silazane, modified polysilazane and polymetallosilazane. It is possible to inhibit the delamination of the fibers by applying CVD coating before or after the impregnation, hardening and firing of the preform.
摘要翻译：通过将金属或陶瓷纤维或多孔陶瓷的预制件与至少一种数均分子量为20至3,000并且冷粘度小于1Pa.s的聚硅氮烷（1）混合制备陶瓷产品，并选择来自主要包含式 - [（SiH 2）n（NH）r] - （其中n和r各自为1,2或3）的重复单元的聚硅氮烷及其衍生物，例如共聚物，改性聚合物和交联剂，连接的聚合物和至少一种选自数均分子量为200〜100,000，冷粘度为100Pa·s以上的聚硅氮烷（2）和固体聚合物，将聚硅氮烷基聚合物数均分子量为200〜3000，冷粘度为100Pa·s以下的混合物，通过交联硬化所得到的混合物，将其烧成陶瓷，并重复这些操作。聚硅氮烷的实例包括无机聚硅氮烷，无机聚硅氮烷，聚有机（水）硅氮烷，改性聚硅氮烷和聚金属硅氮烷。通过在预成型体的浸渍，硬化和烧制之前或之后施加CVD涂层可以抑制纤维的分层。

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