Structure Formation in Ti-C-Ni-Mo Composites during Reactive Sintering
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Title | Structure Formation in Ti-C-Ni-Mo Composites during Reactive Sintering |
Authors | |
Abstract | Reactive sintering is a novel process where synthesis reaction of the carbide phase is combined with solid and liquid phase sintering of the cermet during a single heating cycle. Ti-C-Ni-Mo composites were synthesized in situ from elemental powders of Ti, Ni, Mo and C by high energy milling, followed by reactive sintering. The milled powders with the grain size in nano-scale were pressed to compacts and sintered. During the sintering that was performed after pressing, the titanium carbide was formed first and then the TiC-NiMo cermet was sintered in the presence of liquid phase in one cycle. The interface between the binder phase and the carbide grains of the in situ composite has a good bonding strength because it is not contaminated with oxidation film or other detrimental surface reactions. The microstructure of such cermet is fine-grained and more homogeneous than that of cermets produced by conventional method. In the paper the phase evolution, microstructure formation and carbide grain growth during reactive sintering are explained.DOI: http://dx.doi.org/10.5755/j01.ms.18.1.1343 |
Publisher | Kaunas University of Technology |
Date | 2012-03-15 |
Source | Medžiagotyra Vol 18, No 1 (2012) |
Rights | Copyright terms are indicated in the Republic of Lithuania Law on Copyright and Related Rights, Articles 4-37. The copyright for articles in this journal are retained by the author(s), with first publication rights granted to the journal. By virtue of their appearance in this open access journal, articles are free to use with proper attribution in educational and other non-commercial settings. |