This work was partially supported by the IsraeliMinistry of Defense (grant No. 4440400102). The authors like to thank Dr. D. Moghilianski for the XRD analysis and Mr. Eyal Oz for technical assistance.
Low Temperature Processing of Reaction-Bonded Boron Carbide Composites†
Article first published online: 16 APR 2014
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Engineering Materials
Special Issue: Advanced Ceramics and Coating Processing
Volume 16, Issue 6, pages 797–805, June 2014
How to Cite
Frage, N., Hayun, S., Dilman, H. and Dariel, M. P. (2014), Low Temperature Processing of Reaction-Bonded Boron Carbide Composites. Adv. Eng. Mater., 16: 797–805. doi: 10.1002/adem.201400108
- Issue published online: 11 JUN 2014
- Article first published online: 16 APR 2014
- Manuscript Accepted: 3 MAR 2014
- Manuscript Received: 1 MAR 2014
- IsraeliMinistry of Defense. Grant Number: 4440400102
The present paper is concerned with the fabrication of fully dense B4C-Mg, B4C-AZ91 alloy, and B4C-Mg,Si (eutectic) composites at a significantly lower (750–1000 °C) temperature range. The key feature of the novel approach is based on the Mg-vapor atmosphere, under which the infiltration process is carried out. This approach has also been used to fabricate B4C-Al composites at a low temperature. The microstructure and the mechanical properties of the composites are described and discussed. It was concluded that the formation of the deleterious aluminum carbide (Al4C3) depends on the presence of free carbon in the boron carbide powders. The suggested approach for low temperature fabrication of reaction bonded composites under Mg vapor can be further expanded to other boride and carbide phases.