Reinforcement of B4C Ceramics with Multi-Walled Carbon Nanotubes
Here we have prepared B4C/CNTs composites using the spark-plasma sintering (SPS) method. Mechanical property measurements reveal obvious enhancement confirming the fabrication of true B4C/CNTs composite materials with improved toughness properties.The addition of 1wt% CNTs in the B4C increased the fracture toughness by about 1.6 times from 2.5 to 4 MPa.m1/2 because the CNTs presented at the B4C grain boundaries, made the length of cracks shorten.
Takashi Goto, Yibing Cheng, Zhengyi Fu and Lianmeng Zhang
F. Zhang et al., "Reinforcement of B4C Ceramics with Multi-Walled Carbon Nanotubes", Advanced Materials Research, Vol. 66, pp. 41-44, 2009