Aqueous Sol-Gel Coating of Pitch-Based Graphite Fibers for Inclusion in Aluminum Matrix Composites
| Autor: | H. Garth Spencer, Henry J. Rack, Brian Sullivan, Corina Geiculescu |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Zirconium
Fabrication Materials science Aqueous solution Mechanical Engineering chemistry.chemical_element engineering.material Industrial and Manufacturing Engineering law.invention Coating chemistry Mechanics of Materials law engineering General Materials Science Cubic zirconia Graphite Crystallization Composite material Pyrolysis |
| Zdroj: | Materials and Manufacturing Processes. 14:489-507 |
| ISSN: | 1532-2475 1042-6914 |
| DOI: | 10.1080/10426919908914845 |
| Popis: | A coating on graphite is required to provide a wettable surface and prevent reaction between the graphite and the molten metal during the fabrication of high thermal conductivity metal matrix composites. An aqueous sol-gel procedure using zirconium acetate precursors to form continuous, crack-free, bridge-free zirconia coatings approximately 0.1 µm thick on graphite fibers 10 µm in diameter is described. Parameters were determined for dip-coating the fibers as a tow in an aqueous zirconium acetate solution and developing the coating structure by thermal desiccation, pyrolysis, and crystallization in a controlled environment. |
| Databáze: | OpenAIRE |
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