Reactions of Al-PTFE under Impact and Quasi-Static Compression
| Autor: | Bin Feng, Xiang Fang, Yu-chun Li, Shuang-zhang Wu, Yi-ming Mao, Huai-xi Wang |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Advances in Materials Science and Engineering, Vol 2015 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1687-8434 1687-8442 |
| DOI: | 10.1155/2015/582320 |
| Popis: | Conventionally, the Al-PTFE is thought to be inert under quasi-static or static loads. However, here we reported an initiation phenomenon of Al-PTFE under quasi-static compression. Quasi-static tests suggest that reacted Al-PTFE samples had much higher toughness than unreacted samples. Dynamic test showed that the energy level needed to initiate the material was similar for quasi-static compression (88–100 J) and dynamic impact (77–91 J). The difference in density indicates that unreacted Al-PTFE has a higher crystallinity, which leads to the lower toughness. SEM images show numerous PTFE fibrils in unreacted composites which made the sample harder to crack and initiate. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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