Spark Plasma Sintering Behavior of Binderless WC Powders

Hwan-Tae Kim; Dong-Wook Park; Ji-Soon Kim; Young-Soon Kwon; Hye-Suk Kwon; Eung-Ryul Baek

doi:10.4150/KPMI.2003.10.3.176

Articles

Page Path: HOME > J Korean Powder Metall Inst > Volume 10(3); 2003 > Article


Spark Plasma Sintering Behavior of Binderless WC Powders: Hwan-Tae Kim, Dong-Wook Park, Ji-Soon Kim, Young-Soon Kwon, Hye-Suk Kwon, Eung-Ryul Baek; Journal of Korean Powder Metallurgy Institute 2003;10(3):176-180
DOI: https://doi.org/10.4150/KPMI.2003.10.3.176

¹Research Center for Machine Parts and Materials Processing, University of Ulsan
²School of Materials Science and Engineering, University of Ulsan
³School of Materials Science and Engineering, University of Ulsan
⁴School of Materials Science and Engineering, University of Ulsan
⁵School of Metallurgy and Materials Engineering, Yeungnam University
⁶School of Metallurgy and Materials Engineering, Yeungnam University

prev next

279 Views
0 Download
6 Crossref
0 Scopus

Full Article

Download PDF

Abstract

Pure WC powders which does not include a binder phase were consolidated by spark plasma sintering (SPS) process at 1600~1850°C for 0~30 min under 50 MPa. Microstructure alid mechanical properties of binderless WC prepared by SPS were investigated. With increasing sintering temperature, sintered density and Vickers hardness of binderless WC increased. The fracture toughness of binderless WC was 7~15 MPa m1/2 depending on the sintered density and decreased with increasing the Vickers hardness. It is found that the binderless WC prepared by SPS at 1750°C for 10 min under 50 MPa showed nearly full densification with fine-grained structure and revealed excellent mechanical properties of high hardness (~HV 2400) and considerably high fracture toughness (~7 MPa m1/2).

Keywords: Spark plasma sintering (SPS);Binderless WC;Vickers hardness;Fracture toughness;

Figure & Data

References

Citations

Citations to this article as recorded by

Improvement of Surface Properties of Inconel718 by HVOF Coating with WC-Metal Powder and by Laser Heat Treatment of the Coating
Hui Gon Chun, Tong Yul Cho, Jae Hong Yoon, Gun Hwan Lee
Advances in Materials Science and Engineering.2015; 2015: 1. CrossRef
Improving the Properties of Magnetic Bearing Shaft Material by HVOF Coating of WC-Metal Powder and Laser Heat Treatment
T.Y. Cho, Y.K. Joo, J. H. Yoon, H. G. Chun, S.H. Zhang
Advanced Materials Research.2012; 560-561: 1052. CrossRef
Surface Modification by HVOF Coating of Micron-Sized WC-Metal Powder and Laser-Heating of the Coating
Tong Yul Cho, Jae Hong Yoon, Sung Kang Hur, Hui Gon Chun, Shi Hong Zhang
Materials Science Forum.2011; 686: 654. CrossRef
Surface properties and tensile bond strength of HVOF thermal spray coatings of WC-Co powder onto the surface of 420J2 steel and the bond coats of Ni, NiCr, and Ni/NiCr
Tong Yul Cho, Jae Hong Yoon, Jae Young Cho, Yun Kon Joo, Jin Ho Kang, Shihong Zhang, Hui Gon Chun, Soon Young Hwang, Sik Chol Kwon
Surface and Coatings Technology.2009; 203(20-21): 3250. CrossRef
Rapid sintering process and mechanical properties of binderless ultra fine tungsten carbide
Hwan-Cheol Kim, Jin-Kook Yoon, Jung-Mann Doh, In-Yong Ko, In-Jin Shon
Materials Science and Engineering: A.2006; 435-436: 717. CrossRef
Consolidation and properties of binderless sub-micron tungsten carbide by field-activated sintering
Hwan-Cheol Kim, In-Jin Shon, J.E. Garay, Z.A. Munir
International Journal of Refractory Metals and Hard Materials.2004; 22(6): 257. CrossRef

Cited

Related articles