Spark Plasma Sintering and Characterization of WC-Co-cBN Composites

Jian Feng Zhang; Rong Tu; Takashi Goto

doi:10.4028/www.scientific.net/KEM.616.194

Paper Titles

Enhanced Thermoelectric Properties of Mg₂Si_0.3Sn_0.7Compounds by Bi Doping
p.174

Effect of Oxygen Flow Rate on Electrical and Optical Properties of ATO Thin Films Prepared by RF Magnetron Sputtering
p.178

Synthesis of A-Type Zeolite from Flat Glass Recycle by Hydrothermal Treatments and its Evaluation
p.183

In Situ Observation of Diamagnetic Fluid Flow in High Magnetic Fields
p.188

Spark Plasma Sintering and Characterization of WC-Co-cBN Composites
p.194

Fabrication of Porous Al with Controlled Pore Size by Spark Plasma Sintering
p.199

Densification of Nanocrystalline Ceramics by Combustion Reaction and Quick Pressing
p.204

Microstructure and Properties of Aluminum-Copper Composites Prepared by Hot-Pressure Sintering
p.212

Effect of Al₂O₃ on Microstructure and Ionic Conductivity of Li₇La₃Zr₂O_₁₂ Solid Electrolytes Prepared by Plasma Activated Sintering
p.217

HomeKey Engineering MaterialsKey Engineering Materials Vol. 616Spark Plasma Sintering and Characterization of...

Spark Plasma Sintering and Characterization of WC-Co-cBN Composites

Abstract:

WC-Co-cBN composites were consolidated by SPS at 1373 to 1673 K under a moderate pressure of 100 MPa. The addition of cBN increased the starting and finishing temperature of shrinkage and decreased the relative density of WC-Co. The relative density of WC-(10-20 vol%) cBN composites was about 97-100% at 1573 K and decreased with increasing the sintering temperature to 1673 K due to the phase transformation of cBN to hBN. The highest hardness and fracture toughness of WC-Co-20 vol% cBN composite sintered at 1573 K were 23.2 GPa and 8.0 MP m^1/2, respectively.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 616)

Pages:

194-198

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.616.194

Citation:

Cite this paper

Online since:

June 2014

Authors:

Jian Feng Zhang*, Rong Tu, Takashi Goto

Keywords:

Mechanical Property, Phase Transformation, Spark Plasma Sintering (SPS), WC-Co-cBN Composites

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] R. Wentorf, R. DeVries, F. Bundy, Sintered superhard materials. Science 208 (1980) 873-880.

DOI: 10.1126/science.208.4446.873

Google Scholar

[2] X.-Z. Rong, T. Tsurumi, O. Fukunaga, T. Yano, High-pressure sintering of cBN-TiN-Al composite for cutting tool application. Diamond and Related Materials 11 (2002) 280-286.

DOI: 10.1016/s0925-9635(01)00692-6

Google Scholar

[3] J. Zhang, L. Wang, L. Shi, W. Jiang, L. Chen, Rapid fabrication of Ti3SiC2-SiC nanocomposite using the spark plasma sintering-reactive synthesis (SPS-RS) method. Scr. Mater. 56 (2007) 241-244.

DOI: 10.1016/j.scriptamat.2006.09.029

Google Scholar

[4] M. Nygren, Z. Shen, On the preparation of bio-, nano- and structural ceramics and composites by spark plasma sintering. Solid State Sci. 5 (2003) 125-131.

DOI: 10.1016/s1293-2558(02)00086-9

Google Scholar

[5] Z. Shen, M. Johnsson, Z. Zhao, M. Nygren, Spark plasma aintering of alumina. J. Am. Ceram. Soc. 85 (2002) 1921-1927.

DOI: 10.1111/j.1151-2916.2002.tb00381.x

Google Scholar

[6] M. Hotta, T. Goto, Densification and microstructure of Al2O3-cBN composites prepared by spark plasma sintering. J. Ceram. Soc. Japan 116 (2008) 744-748.

DOI: 10.2109/jcersj2.116.744

Google Scholar

[7] M. Hotta, T. Goto, Effects of cubic BN addition and phase transformation on hardness of Al2O3-cubic BN composites. Ceram. Int. 37 (2011) 1453-1457.

DOI: 10.1016/j.ceramint.2010.09.058

Google Scholar

[8] M. Hotta, T. Goto, Spark plasma sintering of TiN-cubic BN composites. J. Ceram. Soc. Japan 118 (2010) 137-140.

DOI: 10.2109/jcersj2.118.137

Google Scholar

[9] M. Hotta, T. Goto, Densification, phase transformation and hardness of mullite-cubic BN composites prepared by spark plasma sintering. J. Ceram. Soc. Japan 118 (2010) 157-160.

DOI: 10.2109/jcersj2.118.157

Google Scholar

[10] M. Hotta, T. Goto, Densification and phase transformation of β-SiAlON–cubic boron nitride composites prepared by spark plasma sintering. J. Am. Ceram. Soc. 92 (2009) 1684-1690.

DOI: 10.1111/j.1551-2916.2009.03098.x

Google Scholar

[11] J. Zhang, R. Tu, T. Goto, Densification, microstructure and mechanical properties of SiO2-cBN composites by spark plasma sintering. Ceram. Int. 38 (2012) 351-356.

DOI: 10.1016/j.ceramint.2011.07.013

Google Scholar

[12] cBN. JCPDS, International Centre for Diffraction Data, No. 25-1033.

Google Scholar

[13] B.R. Lawn, E.R. Fuller, Equilibrium penny-like cracks in indentation fracture. J. Mater. Sci. 10 (1975) 2016-2024.

DOI: 10.1007/bf00557479

Google Scholar