| Autor: |
J. Wosik, Helena Simunkova, Adam Whitehead, Bernhard Gollas, Ningxin Zhang, Patricia Lammel |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Wear. 270:695-702 |
| ISSN: |
0043-1648 |
| DOI: |
10.1016/j.wear.2011.02.001 |
| Popis: |
Fibre reinforced plastics (FRP) are finding greater use in aerospace applications. In order to improve the low intrinsic rain erosion resistance of these materials electrodeposited layers consisting of micrometer-sized SiC particles in a Ni matrix were examined. This study presents a microscopic examination of damage caused by water droplet impact at 225 m s −1 , from which it was observed that the SiC particles were selectively removed from the surface of the matrix, causing a slight increase in the surface roughness that tended to a maximum value at 1000–2000 impacts of 2 mm diameter water droplets. The depth-dependent concentration of Si in the Ni matrix was estimated from energy-dispersive X-ray spectroscopy (EDX) measurements by varying the accelerating voltages of a range 5–25 kV and fitting the data using a Monte Carlo simulation method. A layer model was put forward that would account for the observed results, showing that SiC was selectively removed from the upper 0.4 μm of the deposit. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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