Synthesis of TiC/Ti–Cu composites by pressureless reactive infiltration of TiCu alloy into carbon preforms fabricated by 3D-printing |
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| Affiliation: | 1. Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;2. School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China;3. Department of Materials Science and Engineering, University of California Berkeley, Berkeley, CA, 94720, USA;4. Jihua Laboratory, Foshan 528200, China;5. School of Materials Science and Engineering, Xi''an University of Technology, Xi''an 710048, China |
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| Abstract: | The microstructure of dense TiC/Ti–Cu composites fabricated by pressureless infiltration of TiCu alloy into porous starch derived carbon preform produced by 3D-printing has been studied. The reactive melt infiltration was carried out at 1100 °C in a flowing Ar atmosphere and resulted in formation of a composite comprised predominantly of substoichiometric TiCx (x=0.78), binary intermetallic Ti–Cu phases and residual carbon. SEM analyses revealed a microstructure consisting of a dispersed fine-grained TiC0.78 (∼7 μm) in a Ti–Cu matrix. |
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