Investigation of Microstructure and Machinability of the B4C/BN Composites

Tao Jiang; Zhi Hao Jin; Jian Feng Yang; Guan Jun Qiao

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

Paper Titles

Effects of Eu²⁺, Dy³⁺ Contents and Particle Sizes on the Luminescent Properties of SrAl₂O₄ Phosphor by the Sol-Gel Process
p.473

Growth of Highly Orientated and Well-Aligned ZnO Nanowhiskers Using Aqueous Solutions
p.477

The Strain Rate Sensitivity of Plasma Treated Nano TiO_x Particles/PP/PLA Nano-Composites Filaments
p.481

Crystallization and Mechanical Properties of Nano ZnO/PP/PLA Composite Filaments
p.485

Investigation of Microstructure and Machinability of the B₄C/BN Composites
p.489

ZnO Nanorods Synthesized in Large-Scale via Sonochemical Method and its Sensing Potential towards Methyl Mercaptan
p.493

Preparation and Properties of Nanoclay/TPS/Asphalt Ternary Binders
p.497

Dispersing Single-Walled Carbon Nanotubes in Water by Adsorption of Polyphenols
p.501

Synthesis and Characterization of FePt Nanoparticle/Single Walled Carbon Nanotube Composites
p.505

HomeMaterials Science ForumMaterials Science Forum Vols. 620-622Investigation of Microstructure and Machinability...

Investigation of Microstructure and Machinability of the B₄C/BN Composites

Abstract:

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.