为实现高温条件下炭材料的有效连接,利用陶瓷组元改性酚醛树脂制备了树脂基高温粘接剂,用该粘接剂粘接了4种不同孔隙结构的炭材料,并进行400～1 200℃的高温热处理.利用万能材料试验机考察了上述粘接剂的高温粘接性能,通过压汞仪分析了4种炭材料的孔隙结构及其与粘接性能间的相互关系.结果表明:粘接样品在高温热处理后仍具有较为理想的连接强度;炭材料表面的孔隙率和孔径分布对粘接强度有一定的影响;合适的孔隙率和孔径分布是实现高性能连接的必要条件.
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