Haihua Wu, Yu Sun, Kui Chen, Yafeng Li. Fabrication of High Strength and Low Thermal Conductivity Graphite/Ceramic Composites by Selective Laser Sintering and Gelcasting[J]. Laser & Optoelectronics Progress, 2019, 56(9): 091404
- Laser & Optoelectronics Progress
- Vol. 56, Issue 9, 091404 (2019)
Fig. 1. Flow chart of fabrication process of composite
Fig. 2. Porous graphite preform and its surface SEM image. (a) Image of preform; (b) SEM image magnified by 60 times; (c) SEM image magnified by 600 times
Fig. 3. Thermogravimetric curve of greenbody for gelcasting
Fig. 4. Curve of optimized high temperature sintering process of ceramics
Fig. 5. Sintered mullite specimens
Fig. 6. Composites before and after post-processing and SEM image of composite interface. (a) Composite before post-processing; (b) composite after post-processing; (c) side view of composite specimen; (d) SEM image of composite interface
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Table 1. Materials used in gelcasting process
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Table 2. Properties of graphite preform under different post-processing
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