2022
DOI: 10.1016/j.ceramint.2021.11.302
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The use of a carbonized phenolic formaldehyde resin coated Ni foam as an interlayer to increase the high-temperature strength of C/C composite-Nb brazed joints

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Cited by 18 publications
(5 citation statements)
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“…discovered that by introducing Ni foam coated with 3D carbon layer into the brazed joint, the shear strength of the joint between carbon fiber–reinforced carbon composite and Mo was increased by 63%. Excellent wettability of carbon shell toward active brazing alloys has also been certified by our previous studies 26–29 . However, the doubtless transformation of carbon nanomaterials into TiC severely impaired the intrinsic properties of the carbonaceous precursor, consequently resulting in reduced energy absorption and stress relief capabilities.…”
Section: Introductionsupporting
confidence: 58%
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“…discovered that by introducing Ni foam coated with 3D carbon layer into the brazed joint, the shear strength of the joint between carbon fiber–reinforced carbon composite and Mo was increased by 63%. Excellent wettability of carbon shell toward active brazing alloys has also been certified by our previous studies 26–29 . However, the doubtless transformation of carbon nanomaterials into TiC severely impaired the intrinsic properties of the carbonaceous precursor, consequently resulting in reduced energy absorption and stress relief capabilities.…”
Section: Introductionsupporting
confidence: 58%
“…However, these carbon bulks were in the middle of the ligament channels, and they were dispersed uniformly with the help of the network structure of the HCF interlayer and contributed to reducing the CTE of the entire brazing seam without impairing the wettability of the HCF interlayer skeleton. Note that the spare space between the TiC sheath and the carbon bulks forms a capillary channel, allowing molten brazing filler to flow into the hollow space under the action of capillary and react with the HCF interlayer skeleton, forming a TiC shell–wrapped brazing filler composite 57 . This heterogeneous core–sheath structure was externally rigid and internally plastic, which has been reported to own enhanced load transfer capacity for better relieving the residual stress and improved brazing seam performance 58,59 …”
Section: Resultsmentioning
confidence: 99%
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“…Nevertheless, there are two points of concern when brazing C/C composites with the TC4 alloy: (1) unexpected, mass of continuously dispersed Ti-Cu compounds within the brazing seam, which dramatically deteriorate the plasticity of the brazed joint; (2) severe residual stress in the brazing seam caused by the evident difference of CTE between C/C composites ( ∼ 1 × 10 −6 K −1 ) and the TC4 alloy ( ∼ 8.6 × 10 −6 K −1 ) [8,[13][14][15]. Both these factors lead to a reduction of the joint load bearing capacity.…”
Section: Introductionmentioning
confidence: 99%
“…Wang et al [ 120 ] fabricated a unique PF foam which can act as interlayer for brazing carbon fiber reinforced carbon composites (C/C). Ding et al [ 121 ] prepared a superior flame retardant phenolic foam by incorporating phosphorus‐ and nitrogen‐containing polyurethane quasi‐prepolymer (PNPUQP).…”
Section: Introductionmentioning
confidence: 99%