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Study on the Microstructural Evolution of High Temperature Adhesives for Graphite Bonding by Ji-Gang Wang; Quan-Gui Guo; Lang Liu; Jin-Ren Song is a Materials Science article available to read on EtoBox.

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Development of high-temperature adhesives (HTAs) can provide a way to produce carbon materials with a large size or a complex shape. Some HTAs were developed for joining graphite materials. These HTAs were prepared using phenol formaldehyde (PF) resin as matrix and B C powders as fillers. The results showed that these HTAs had satisfactory adhesive 4 properties for graphite bonding even though the bonded graphite components were heat-treated at temperatures up to 1500 8C. In order to clarify the effects of the microstructure of HTAs on adhesive strength, the bonded graphite parts were heat-treated at high temperatures ranging from 400 to 1500 8C. The microstructural evolution of HTAs was investigated using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Analyses of the HTAs at the interface revealed that during microstructural evolution, carbonization of PF resin and complex interactions between PE and B C powders occurred. A high chemical bonding force was introduced at the interface through interactions between the 4 glassy carbon from the PF resin and B C fillers, and the B C fillers restrained the volume shrinkage of PF resin during 4 4 carbonizat

Who reads Study on the Microstructural Evolution of High Temperature Adhesives for Graphite Bonding?

Author

Ji-Gang Wang; Quan-Gui Guo; Lang Liu; Jin-Ren Song

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0008-6223)

Published

2002

Language

EN

Field

Materials Science (Physical Sciences)