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2771 |
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Tuesday, September 27, 2011, Saal B2.1 4:50 PM Cold Spraying 2 |
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Life cycle assessment comparison of various cold spray processes |
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Arnaud Moign / CITRA, FRANCE Armelle Vardelle* / SPCTS, UMR CNRS 6638, University of Limoges, FRANCE Christophe Chazelas/ SPCTS, UMR CNRS 6638, University of Limoges, FRANCE Jean-Gabriel Legoux/ Surface Technologies, Industrial Materials Institute, CNRC, CANADA Eric Irissou/ Surface Technologies, Industrial Materials Institute, CNRC, CANADA |
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Life cycle assessment (LCA) makes it possible to analyze the environmental impacts of a process and therefore is becoming an integral part of the evaluation of new processes. It enables us to determine which steps of the process make the largest contribution to the environmental impact and so help to focus the efforts on these unit operations so as to improve their performance. This study is a LCA comparison of various cold spray processes for the formation of copper and titanium-base coatings. It was done using a peer-reviewed database of upstream materials and energy (EcoInvent), and the LCA program SimaPro. The cold spray processes considered in the study involved high-pressure processes using helium or nitrogen and low-pressure processes using nitrogen. In the case of helium, the possibility to recycle the gas was investigated. |