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Chanin : Fuel Cell Guy Chanin's Photos


Coated Sample with Modified New Configuration : Here you see the result of the modifications. Notice the edge of the cloth where the fibers have shifted. You can see the difference between coated and uncoated fibers with the naked eye. This is progress.
Coated Sample with Modified New Configuration
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First Sample Coating with Modified New Configuration : I tried a new placement method for the Carbon fiber cloth samples, but found that the cloth blocked the electron flow inhibiting plasma formation. I further modified the electrodes to quite literaly "get around" this problem by placing a coper wire extension past the sample and around the target housing. This seemed to worl fairly well.
First Sample Coating with Modified New Configuration
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Results of Modifications : Here you see the results of the latest modifications. Plasma forming nicely at the target and not too much elsewhere.
Results of Modifications
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Sputtering Chamber Modifications : I am trying to limit plasma formation to the target disk to ensure that only Palladium-Titanium gets on my Carbon fiber cloth. To do this I had Pyrex glass formed to fit over and around the electrodes to insulate them. This also protects the Neoprene from being singed by hot plasma. This modification took several trips back to the drawing board. Originally I wanted to use only glass, but found that covering the lower stems and base was difficult so I eventually landed on a combination of Neoprene and Pyrex.
Sputtering Chamber Modifications
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Samples for Study : This is a sample I coated in my sputter coater and a piece of it ready to go into the scanning electron microscope. I am cheching them to see if I'm getting uniform coating over the entire swatch of carbon fiber cloth. The stage it is sitting on is insulated and 51mm wide.
Samples for Study
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The New Target : The disc mounted here is Palladium-Titanium. This shot is after I had used it once to coat the carbon that you see in the Scanning Electron Micrscope shots below. I made the mount on a lathe. You can also see the various stages of its construction in other pictures here.
The New Target
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"Wide" Shot of Carbon Fiber with Palladium-Titanium : You cannot see the Pd-Ti at this magnefication though. I put this picture in for scale. The groupings of Carbon fibers are about 2mm across. The fibers that make up the groupings are about the size human hairs.
"Wide" Shot of Carbon Fiber with Palladium-Titanium
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Closer Shot of Carbon Fiber with Palladium-Titanium
Closer Shot of Carbon Fiber with Palladium-Titanium
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Single Carbon Fiber with Palladium-Titanium on it. : This is a single Carbon fiber close up under scanning electron microscope with other fibers in the back ground. You can see here the Pd-Ti on it. This was my first coated sample with my new Pd-Ti sputtering target. I was very hapy with how much I was able to put on it. 
Single Carbon Fiber with Palladium-Titanium on it.
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