Production of aluminium–fly ash particulate composite by powder metallurgy technique using boric acid as foaming agent
| Autor: | Ercan Ozkan, Neşe Öztürk Körpe, Ugur Tasci |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Composite number Metallurgy chemistry.chemical_element Foaming agent 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Industrial and Manufacturing Engineering Boric acid chemistry.chemical_compound chemistry Mechanics of Materials Aluminium Powder metallurgy 0103 physical sciences General Materials Science 0210 nano-technology Porosity Boron |
| Zdroj: | Advances in Materials and Processing Technologies. 3:145-154 |
| ISSN: | 2374-0698 2374-068X |
| DOI: | 10.1080/2374068x.2016.1254004 |
| Popis: | Fly ash-particulated (FA) aluminium metal matrix composites and boric acid was used for the production of foam using powder metallurgy technology. Using boron products such as boric acid as a pore forming agent is different from the ones used in literature. Aluminium–FA composites containing 1 wt.% and 10 wt.% of FA were prepared and mixed with 50 wt.% boric acid and then compacted. The compacts prepared at 630 MPa were sintered in argon atmosphere at 550 °C for 3 h. The microstructure characteristic and compressive behaviour of the foam at strain rate of 10−3 s−1 were investigated. The morphology and chemical composition of the phases in the composite samples were investigated using Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy and X-ray diffraction. Aluminium composite foam samples with ~40% porosity were successfully produced with the 0.6 mm mean cell size. Strength of the sintered compacts increased with increasing weight per cent of FA under the present experimental condi... |
| Databáze: | OpenAIRE |
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