Improved resistance of alumina to mild wear by aluminium titanate additions |
| |
| Affiliation: | 1. Instituto de Cerámica y Vidrio, CSIC, Kelsen 5, 28049 Madrid, Spain;2. Laboratoire des Matériaux Céramiques et Procédés Associés (LMCPA), Université Lille-Nord de France, F-5900 Lille, France;3. UVHC, ZI du Champ de l’Abbesse, F-59600 Maubeuge, France;1. School of Materials Science and Engineering, Beihang University, Xueyuan Road, No. 37, Beijing 100191, China;2. LEMHE, ICMMO, University Paris-Sud & CNRS, Orsay F-91405, France;1. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China;2. Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka 940-2188, Japan;3. Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka 940-2188, Japan;1. Department of Information and Finance Management, Institute of Information Management, National Chiao Tung University, Hsinchu 300, Taiwan;2. Department of Information Management, National Chi Nan University, Puli 545, Taiwan |
| |
| Abstract: | The wear behaviour of an alumina (Al2O3)–aluminium titanate (Al2TiO5) composite containing 10 vol.% of second phase is studied and compared to that of single phase alumina. A careful control of the microstructure has been done in order to compare materials with similar alumina grain sizes. Wear tests have been performed on a pin on disk tribometer with an alumina ball as pin, at room temperature, under a normal force of 10 N and at sliding speeds from 0.06 to 0.15 m/s. Extensive analyses of the microstructural modifications due to wear have been done by a combination of field emission scanning microscopy and confocal microscopy.Mild wear conditions were attained for both materials. The main wear mechanism identified in both materials involves the formation of a hydroxide film and its cracking and delamination. The composite specimens presented increased wear resistance compared to the single phase ones. |
| |
| Keywords: | Alumina Aluminium titanate Composites Wear Tribololayer |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
