| Titel | Evaluation of Scratch Resistance of Various High Performance Polymers |
| Autor | K. Friedrich, H.J. Sue, P. Liu, A. A. Almajid |
| Infos zum Autor | Klaus Friedrich Institut für Verbundwerkstoffe GmbH Techn. Universität Kaiserslautern Erwin Schrödinger Str. 58 67663 Kaiserslautern Germany Tel. 0631-2017-201 Fax: 0631-2017-198 E-Mail: friedrich@ivw.uni-kl.de Hung-Jue Sue Polymer Technology Center Dept. Mechanical Engineering Texas A+M University College Station, Texas 77843 USA Tel. 1-979-845-5024 Fax: 1-979-845-3081 E-Mail: hjsue@tamu.edu Abdulhakim Almajid CEREM, Mechanical Engng. Dept. King Saud University PO Box 800 Riyadh, 11421 Saudi Arabia Tel. 966-1-467-6656 Fax: 966-1-467-6652 E-Mail: aalmajid@ksu.edu.sa Liu Peng Polymer Technology Center Dept. Mechanical Engineering Texas A+M University College Station, Texas 77843 USA Tel. 1-979-458-0918 Fax: 1-979-845-3081 E-Mail: icantu@tamu.ed |
| Inhalt | Abstract In this study, a series of scratch tests was carried out on various high performance polymers, of which at least two of them (PEEK; PI) have already been used frequently for various other tribological applications, such as bearings or sliding elements. The scratch damage features were characterized by using laser confocal and scanning electron microscopy. Various scratch damage mechanisms were identified for these polymers, including (1) the highest temperature resistant polymer, polybenzimidazole (PBI), (2) the hardest thermoplastic at room temperature, polyparaphenylene (PPP), (3) a high toughness and high temperature resistant polyetheretherketone (PEEK), and (4) a high temperature resistant thermoset polyimide (PI), containing additional graphite flakes for self lubrication. The scratch resistance at room temperature decreased in the same order as the materials were listed above. It was attempted to correlate the scratch depth with basic mechanical properties, such as Young’s modulus, tensile strength, and scratch hardness. Also the scratch coefficient of friction was considered as a possible measure for differentiating between the various materials tested. |
| Datum | 2010 |
