@inproceedings{9c692f30d0744725b3d3368302582a54,
title = "Phase transformation of cold-sprayed Ni/Al-Al2O3 composite coatings during post-spraying annealing treatment",
abstract = "NiAl-Al2O3 intermetallics based composite coatings were prepared by cold spraying of Ni/Al-Al2O3 composite powders followed by post-spraying annealing treatment. The phase transformation mechanism from Ni/Al mechanical alloy to intermetallics was explored to aim at controlling the microstructure of the composite coating. Results showed that, with the porous Ni/Al and Ni/Al-Al2O3 green compacts, self-propagating high-temperature synthesis (SHS) reaction was ignited at a temperature of 500-600°C. However, SHS reaction was not able to be ignited for the cold-sprayed dense Ni/Al alloy coating with or without substrate. SHS reaction was even not ignited for the Ni/Al-40vol.\%Al2O3 composite coating, although the thermal conductivity of the coating was significantly decreased by the addition of Al2O3 ceramic particles. The phase transformation from Ni/Al mechanical alloy to NiAl intermetallics during post-spraying annealing can be evidently attributed to diffusion mechanism.",
author = "Yang, \{G. J.\} and Zhao, \{S. N.\} and Li, \{C. X.\} and Li, \{C. J.\}",
year = "2012",
language = "英语",
isbn = "9781632666796",
series = "Proceedings of the International Thermal Spray Conference",
publisher = "ASM International",
pages = "323--328",
booktitle = "International Thermal Spray Conference and Exposition, ITSC 2012 - Air, Land, Water and the Human Body",
note = "International Thermal Spray Conference and Exposition - Air, Land, Water and the Human Body: Thermal Spray Science and Applications, ITSC 2012 ; Conference date: 21-05-2012 Through 24-05-2012",
}