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公开(公告)号:EP3166908B1
公开(公告)日:2020-12-09
申请号:EP15750299.8
申请日:2015-07-30
申请人: Universität Bayreuth
发明人: KRENKEL, Walter , WAMSER, Thomas , SCHELER, Sven
IPC分类号: C04B35/632 , C04B35/80 , B32B18/00 , B28B1/40 , B28B19/00 , C04B35/10 , C04B35/14 , C04B35/18 , C04B35/486 , C04B35/505 , C04B35/528
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公开(公告)号:EP3166908A1
公开(公告)日:2017-05-17
申请号:EP15750299.8
申请日:2015-07-30
申请人: Universität Bayreuth
发明人: KRENKEL, Walter , WAMSER, Thomas , SCHELER, Sven
IPC分类号: C04B35/632 , C04B35/80
CPC分类号: C04B35/6263 , B28B1/40 , B28B19/00 , B32B18/00 , C04B35/117 , C04B35/119 , C04B35/14 , C04B35/185 , C04B35/44 , C04B35/486 , C04B35/505 , C04B35/528 , C04B35/565 , C04B35/632 , C04B35/803 , C04B35/806 , C04B2235/3225 , C04B2235/522 , C04B2235/5224 , C04B2235/5228 , C04B2235/5232 , C04B2235/5236 , C04B2235/5244 , C04B2235/5248 , C04B2235/5256 , C04B2235/5436 , C04B2235/606 , C04B2235/616 , C04B2235/764 , C04B2235/765 , C04B2235/95 , C04B2235/96 , C04B2237/34 , C04B2237/341 , C04B2237/343 , C04B2237/348 , C04B2237/363 , C04B2237/365 , C04B2237/38
摘要: The present invention provides a process for the preparation of a prepreg for a ceramic matrix composite material, said process comprising the steps of: a) impregnating an arrangement of ceramic fibers with a slurry of a ceramic powder, which slurry contains: 10 to 40 vol%, based on the total volume of the slurry, of the ceramic powder, 10 to 20 wt%, based on the total weight of the ceramic powder in the slurry, of glycerol, 0 to 2 wt%, based on the total weight of the ceramic powder in the slurry, of an organic binder, and water; b) reducing the water content in the slurry which is retained by the arrangement of ceramic fibers after impregnation so as to increase the volume ratio of the ceramic powder in the slurry and to provide a prepreg containing a slurry of a ceramic powder with a volume ratio of the ceramic powder of 45 vol% or more in the slurry. It further provides a prepreg obtainable from the process. In further aspects of the invention, laminates containing the above prepregs and a process for their production are provided. In yet a further aspect, the invention provides a ceramic matrix composite green body and a process for its preparation, and a process for the preparation of a ceramic matrix composite body, using the prepregs or the laminated prepregs in accordance with the invention.
摘要翻译: 本发明提供一种用于制备陶瓷基复合材料预浸料的方法,所述方法包括以下步骤:a)用陶瓷粉末浆料浸渍陶瓷纤维排列,所述浆料含有:10至40体积% 基于浆料的总体积,陶瓷粉末的总重量,基于浆料中的陶瓷粉末的总重量,10至20重量%的甘油,0至2重量%,基于 浆料中的陶瓷粉末,有机粘合剂和水; b)降低浸渍后由陶瓷纤维排列所保留的浆料中的水含量,以增加浆料中陶瓷粉末的体积比,并提供含有陶瓷粉末浆体的预浸料坯, 的浆料中45体积%或更多的陶瓷粉末。 它进一步提供了可从该方法获得的预浸料坯。 在本发明的另一方面,提供了含有上述预浸料的层压板及其生产方法。 在又一方面,本发明提供一种陶瓷基复合坯体及其制备方法,以及使用本发明的预浸料或层压预浸料制备陶瓷基复合体的方法。
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