Dear scholars,
I decide to deposit rose gold coat by using cathodic arc pvd. my target is Ti and the gas is acetylene, nitrogen and argon. I really want to know the deposition parameter and method since I concern about acetylene reactivity and the danger of its explosion. I am so grateful for your guides.
Saba Khoram
Hello Saba
Could you please specify the film's properties you want to deposit (thickness, porosity, roughnes, etc...) because adjusting plasma deposition parameters really depends on what you want to obtain.
Regards
Loraine
dear Loraine Youssef
thanks again for your response. since I am working for a faucet factory, the most important parameters they concern about is the color and the adhesion of the coat. predominantly, the time of deposition is around 3 min with bias voltage 110 for depositing TiN film on faucets. I haven't found the safe ranges for acetylene and nitrogen mass flow for depositing TiCN.
1-Generally for the film color you should consider its thickness. Also you should check how much your PVD technique is homogeneous. When you look at your samples, do they present the same color all over the surface? If so then your technique is homogeneous. If you see rainbow colors then it is not. Generally, PVD is more homogeneous than PECVD over an average surface.
2-According to my knowledge, golden shades mean low thickness and you start to see blue, reddish and green shades when you increase the thickness. So I think 3 min should be enough at this bias voltage. Colors also depend on films microstructures and refractive index. I have never worked with acetylene to tell you, but for nitrogen, the risk of using high flow remains in the disorder that you could generate in your film. A disorder means refractive index variation.
As for acetylene, you should of course stay in the safe flow ranges or find a safer carbon source (if possible).
Regards
Loraine
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