Abstract
In this research, submicrometer silicon-carbide (SiC) (APS = 200 nm) ceramic particles were co-deposited with chromium metal (Cr) via an electrodeposition system to fabricate Cr-SiC metal-matrix composite films. Phase identifications of the fabricated composite coatings were performed with an X-ray diffractometer (XRD) and surface morphologies were investigated using a scanning electron microscope (SEM) with an energy dispersive X-ray spectroscopy (EDS) system attachment. Mechanical properties of the coatings such as hardness were determined under an applied load of 980.7 mN using a micro-hardness tester. It was concluded that SiC ceramic particles were physically adsorbed on the cathode surface forming a composite film structure with Cr metal and that a co-deposition of the sub-micron-sized ceramic particles with metals via an electrodeposition system was successful. In addition, in comparison with the reference coatings, the hardness of the SiC-reinforced composite coatings was increased by up to 50 %. The frequency, being a parameter of pulse current, is determined as an effective parameter in a co-deposition of ceramic particles with metals.
| Original language | English |
|---|---|
| Pages (from-to) | 601-604 |
| Number of pages | 4 |
| Journal | Materiali in Tehnologije |
| Volume | 47 |
| Issue number | 5 |
| Publication status | Published - Sept 2013 |
| Externally published | Yes |
Keywords
- Co-deposition technique
- Composite coatings
- Micro-hardness
- Pulse current (PC)