Approaching Carbon Nanotube Reinforcing Limit in B4C Matrix Composites Produced by Chemical Vapor Infiltration1. Issue 2 (23rd September 2013) - Li, Kaiyuan
Abstract Toughening ceramics has been a long‐standing challenge. By chemically infiltrating B4C into aligned carbon nanotubes (CNTs) sheets, we fabricate a novel CNT/B4C composite with a fracture strength approaching the theoretical maximum of B4C matrix. The CNT/B4C composites simultaneously possess a strongly bonded tube/matrix interface and an amorphous, crack‐free B4C matrix. The fracture strength of the CNT/B4C nanowires is about 1–2 orders of magnitude higher than that of the bulk B4C.