Fabrication of Core-Shell Chopped Cf-Phenolic Resin Composite Powder for Laser Additive Manufacturing of Cf/SiC Composites
Open Access
- 1 February 2021
- Vol. 13 (3), 463
- https://doi.org/10.3390/polym13030463
Abstract
Laser additive manufacturing is a promising technique for the preparation of complex-shaped SiC composites. High-quality powders are critical for high-precision laser printing. In this work, core-shell Cf @phenolic resin (PR) composites for selective laser sintering of carbon fiber reinforced silicon carbide (Cf/SiC) composites were fabricated by surface modification using 3-aminopropyltriethoxy silane coupling agent (KH550) in combination with planetary ball milling. PR coated uniformly on the fiber surface to form a core-shell structure. The effects of PR on the morphology, elemental composition, interfacial interactions, and laser absorption of the core-shell composite powder were investigated in detail. Results indicated that the composite powder exhibited good laser absorption within the infrared band.Funding Information
- National Natural Science Foundation of China (No. 52073299, 91960102, 51602325)
- Youth Innovation Promotion Association (CAS, No. 2018289)
- Natural Science Foundation of Shanghai (20ZR1465400)
- Science Foundation for Opening Project of State Key Laboratory of High-Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics CAS (SKL201902SIC)
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