Fabrication of Core-Shell Chopped Cf-Phenolic Resin Composite Powder for Laser Additive Manufacturing of Cf/SiC Composites

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.

Low‐temperature curable adhesive for joining SiC/SiC components: Their application in wide range of temperatures

“…It is well known that the phenolic resin has been serving as a binder as well as a carbon source for making SiC, C f -SiC, and other ceramic materials on a large scale. [16][17][18] The thermal stability (200-600 • C) and low-temperature bonding strength of phenolic resin are the added advantages for employing it as a binder material. [19][20][21] On the other hand, the inorganic powder materials like B 4 C, SiO 2 , Al 2 O 3 , and Y 2 O 3 are known to form silicates and other glassy oxides under oxidative environments, and these glassy phases have high thermal stability and variable CTE.…”

“…This adhesive is made by combining phenolic resin and ceramic fillers to achieve good binding stability to SiC joints at lower and high‐temperature regions. It is well known that the phenolic resin has been serving as a binder as well as a carbon source for making SiC, C f –SiC, and other ceramic materials on a large scale 16–18 . The thermal stability (200–600°C) and low‐temperature bonding strength of phenolic resin are the added advantages for employing it as a binder material 19–21 .…”

Hybrid and Synthetic FRP Composites under Different Strain Rates: A Review

“…Reducing the cost and increasing the mechanical properties of bio-based polymers can be taken into consideration in future studies. In addition, using phenolic foam resin in the additive manufacturing process was reported to generate complex silicon-based composites [ 11 ].…”

Sintered Ti/Al core/shell nanoparticles: computational investigation of the effects of core volume fraction, heating rate, and room-temperature relaxation on tensile properties

“…For example, the core/shell morphology and composition of the final metal matrix composites including Cr, Mo, and Nb can be tuned by controlling the quantity of carbon in the system during the sintering step [19]. Carbon fiber reinforced silicon carbide composite powder exhibits good laser absorption within the infrared band during high-precision laser printing [20]. While the SLS was introduced in the early 1980s, there is still much research needed to better understand the thermal effects on the physical properties of different NPs during the sintering process [21].…”