Investigation of Microstructure and Machinability of the B4C/BN Composites

Abstract:

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In this article, the microstructure, mechanical properties and machinability of the B4C/BN microcomposites and the B4C/BN nanocomposites were investigated. Homogenous distribution of the h-BN particles in the B4C ceramics appeared. The mechanical properties decreased gradually with the increasing content of h-BN for the both composites, while the nanocomposites demonstrated high performance. Machinability increased gradually with the increasing content of h-BN, and excellent machinability exhibited for both composites with more than 20wt% h-BN. The weak interface between the B4C matrix grains and the h-BN particles as well as the cleavage behavior of the laminate structured h-BN particles significantly attributed to the machinability of the B4C/BN composites.

Info:

Periodical:

Materials Science Forum (Volumes 620-622)

Edited by:

Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee

Pages:

489-492

DOI:

10.4028/www.scientific.net/MSF.620-622.489

Citation:

T. Jiang et al., "Investigation of Microstructure and Machinability of the B4C/BN Composites", Materials Science Forum, Vols. 620-622, pp. 489-492, 2009

Online since:

April 2009

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Price:

$35.00

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