Application of U-FAST Technology in Sintering of Submicron WC-Co Carbides
This article presents the microstructure, hardness, fracture toughness coefficient <i>K<sub>IC</sub></i> and phase composition of submicron WC-4Co carbides. The carbides were sintered using the innovative U-FAST (Upgraded Field Assisted Sintering Technology) method, from mixt...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
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| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/16/6/2450 |
| Summary: | This article presents the microstructure, hardness, fracture toughness coefficient <i>K<sub>IC</sub></i> and phase composition of submicron WC-4Co carbides. The carbides were sintered using the innovative U-FAST (Upgraded Field Assisted Sintering Technology) method, from mixtures of WC-Co powders with an average WC grain size of 0.4 µm and 0.8 µm. The obtained sinters were characterized by a relative density above 99% of the theoretical density. The hardness of the obtained composites was above 2000 HV30, while the <i>K<sub>IC</sub></i> coefficient was about 8 MPa m<sup>1/2</sup>. |
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| ISSN: | 1996-1944 |