树脂基多孔碳孔结构对Cf/SiC复合材料连接性能的影响

吴西士, 朱云洲, 黄庆, 黄政仁

Effect of Pore Structure of Organic Resin-based Porous Carbon on Joining Properties of Cf/SiC Composites

WU Xishi, ZHU Yunzhou, HUANG Qing, HUANG Zhengren

表2 不同孔径的多孔碳素坯反应烧结样品性能

Table 2 Properties of the RBSC fabricated from preforms with different pore sizes

Pore size/nm Open porosity/% Density/ (g·cm-3) Flexural strength/MPa Residual Si/(%, in volume) 190 0.97 2.93 296±28 16 642 1.26 2.91 268±46 14 1226 1.87 2.88 248±22 16 1552 3.51 2.81 238±44 12 2363 18.76 2.10 115±32 13