公开(公告)号：US4795677A

公开(公告)日：1989-01-03

申请号：US81126

申请日：1987-08-03

申请人： Paul B. Gray

发明人： Paul B. Gray

IPC分类号： B32B15/04 ,  B32B9/00 ,  C04B35/83 ,  C04B41/50 ,  C04B41/87 ,  B32B31/00

CPC分类号： C04B41/009 ,  C04B35/83 ,  C04B41/5025 ,  C04B41/87 ,  Y10T428/30 ,  Y10T442/2557

摘要： Carbon-carbon composites consisting of graphite fibers reinforcing a carbon matrix are protected from oxidation by a B.sub.2 O.sub.3 glass coating which includes a refractory oxide to stabilize the viscosity of the glass. Precursors of B.sub.2 O.sub.3 and the refractory oxide are dispersed into a resin, the resin is used to impregnate fibrous graphite or fibrous graphitizable material, the sheets are laid up as plies and the laid-up plies are carbonized and graphitized using heat structure. The composite structure is then coated with an additional mix of resin and precursors and the coated structure is heated to carbonize the resin and leave a seal coat on the structure. Then an outer shell of a refractory material is deposited on the structure.

摘要翻译： 由加强碳基质的石墨纤维组成的碳 - 碳复合材料通过包含难熔氧化物的B2O3玻璃涂层来保护免于氧化，以稳定玻璃的粘度。 将B2O3和难熔氧化物的前体分散在树脂中，树脂用于浸渍纤维状石墨或纤维状石墨化材料，将片材铺设成层状，并将铺设的层片用热结构碳化和石墨化。 然后用另外的树脂和前体混合物涂覆复合结构体，加热涂层结构以使树脂碳化并在结构上留下密封涂层。 然后将耐火材料的外壳沉积在结构上。