Impact of Al2O3-40 wt.% TiO2 feedstock powder characteristics on the sprayability,microstructure and mechanical properties of plasma sprayed coatings |
| |
| Affiliation: | 1. Kielce University of Technology, Poland;2. Institute of Metallurgy and Materials Science, Cracow, Poland;3. University of Zilina, Slovakia;1. Instituto de Tecnología Cerámica (ITC), Asociación de Investigación las Industrias Cerámicas (AICE), Universitat Jaume I (UJI), Av. Vicent Sos Baynat s/n, Castellón 12006, Spain;2. Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, Spain |
| |
| Abstract: | Atmospheric plasma sprayed (APS) Al2O3-TiO2 coatings have found a wide range of industrial application due to their favorable properties, combined with low costs and a high availability. However, the detailed effect of the phase composition and the element distribution of the feedstock powders on the coating properties and the spraying process have only crudely been investigated so far. Here the impact of aluminum titanate (Al2TiO5) on the microstructural features and mechanical properties of Al2O3-40 wt.% TiO2 APS coatings is demonstrated by investigating the detailed phase composition and the distribution of aluminum and titanium in three fused and crushed feedstock powders and the respective coatings. Thereby, a direct influence of Al2TiO5 content on the deposition efficiency, the porosity, the elastic modulus, and the hardness of the coatings is revealed. The results emphasize the need for a more detailed specification of commercial Al2O3-TiO2 feedstock powders to ensure a high reliability of the coating properties. |
| |
| Keywords: | APS Aluminum titanate Coating Feedstock powder |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
