Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS
Abstract
:1. Introduction
1.1. TiB2-Cu Cermets Produced by Liquid Phase Sintering Using Spark Plasma Sintering (SPS)
1.2. Wettability and Contact Angle
1.3. Capillary Forces
1.4. Effect of Contaminations on the Densification of TiB2
1.5. Chemical Stability and Vaporization of Copper
1.6. Goal of the Present Research
2. Results and Discussion
2.1. Effect of Sintering Temperature and Composition on Cu Vaporization
2.2. Effect of Heating Rate in SPS on the Cu evaporation
Nominal (designed) composition of cermet (vol. % of Cu) | Cu vol. % in powder mixture before SPS | Cu vol. % after low hearing rate | Cu vol. % after rapid sintering | |
---|---|---|---|---|
Sintering at 1100 °C | Sintering at 1200 °C | |||
TiB2-3 vol. % Cu | 4 | 3 (75.0%) | - | - |
TiB2-10 vol. % Cu | 9 | 4 (44.4%) | 4 (44.4%) | - |
TiB2-20 vol. % Cu | 21 | 5 (23.8%) | 6 (28.6%) | 10 (47.6%) |
TiB2-30 vol. % Cu | 33 | 17 (51.5%) | 12 (36.4%) | 19 (57.6%) |
2.3. Discussion
3. Experimental Section
4. Conclusions
Acknowledgments
Conflicts of Interest
References
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Ziemnicka-Sylwester, M. Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS. Metals 2014, 4, 623-638. https://doi.org/10.3390/met4040623
Ziemnicka-Sylwester M. Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS. Metals. 2014; 4(4):623-638. https://doi.org/10.3390/met4040623
Chicago/Turabian StyleZiemnicka-Sylwester, Marta. 2014. "Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS" Metals 4, no. 4: 623-638. https://doi.org/10.3390/met4040623