Kim, Hwan-Cheol Shon, In-Jin Jeong, In-Kyoon Ko, In-Yong Yoon, Jin-Kook Doh, Jung-Mann 2024-01-21T01:34:00Z 2024-01-21T01:34:00Z 2021-09-04 2007-02 1598-9623 https://pubs.kist.re.kr/handle/201004/134708 Using a high-frequency induction heated sintering (HFIHS) method, the densification of binderless WC and WC-x wt.%Co (x = 8, 10, 12) hard materials were accomplished using an ultra fine powder of WC and WC-Co. The advantages of this process are that it allows very quick densification close to the theoretical density and prohibits grain growth in nano-structured materials. Nearly fully dense WC and WC-Co with a relative density of up to 99.9 % could be obtained with a simultaneous application of 60 MPa pressure and induced current (within 2 min) without a significant change in grain size. The average grain size of WC was approximately 270 nm for WC-x wt.%Co. The hardness and fracture toughness of the dense WC and WC-Co composites produced by HFIHS were investigated. English KOREAN INST METALS MATERIALS CEMENTED CARBIDES MICROSTRUCTURE TOUGHNESS POWDERS CRYSTALS METALS PHASE Rapid sintering of ultra fine WC and WC-Co hard materials by high-frequency induction heated sintering and their mechanical properties Article 10.1007/BF03027821 1 METALS AND MATERIALS INTERNATIONAL, v.13, no.1, pp.39 - 45 METALS AND MATERIALS INTERNATIONAL 13 1 39 45 scie scopus kci ART001039864 000244303000006 2-s2.0-33847737041 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article CEMENTED CARBIDES MICROSTRUCTURE TOUGHNESS POWDERS CRYSTALS METALS PHASE rapid sintering high-frequency induction heated sintering WC-Co composites hard materials mechanical properties