| Title |
Rapid Sintering of Nanostuctured Tungsten Carbide by High-Frequency Induction Heating and its Mechanical Properties |
| Authors |
손인진(In Jin Shon); 고인용(In Yong Ko); 홍경태(Kyung Tae Hong); 도정만(Jung Mann Doh); 강현수(Hyun Su Kang) |
| DOI |
https://doi.org/10.3365/KJMM.2010.48.11.1009 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
nanostructured materials; powder metallurgy; mechanical properties; sintering; high-frequency induction heated sintering |
| Abstract |
Extremely dense WC with a relative density of up to 99% was obtained within five minutes under a pressure of 80 MPa using the High-Frequency Induction Heated Sintering method. The average grain size of the WC was about 71 nm. The advantage of this process is not only rapid densification to obtain a neartheoretical density but also the prohibition of grain growth in nano-structured materials. The hardness and fracture toughness of the dense WC produced by HFIHS were 2660 kg·mm?2 and 7.2 MPa·m1/2, respectively. |