Gel-cast hierarchical porous B4C/C preform and its role in fabricating reaction bonded boron carbide composites

• Published in: Ceramics international Vol. 43; no. 5; pp. 4062 - 4067
• Main Authors: Xu, Yufeng, Ru, Hongqiang, Long, Haibo, Zhao, Jing, Wang, Wei, Yue, Xinyan
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2017
• Subjects: Boron carbide; Gel-casting; Liquid silicon infiltration; Mechanical properties; Gel-casting; Mechanical properties; Liquid silicon infiltration; Boron carbide

The resorcinol-formaldehyde (RF) gel-casting system is employed for the first time to fabricate a hierarchical porous B4C/C preform, which was subsequently used for the fabrication of reaction bonded boron carbide (RBBC) composites via a liquid silicon infiltration process. The effect of the carbon...