- #1
Stuey
- 2
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Hi, I am trying to work out if a small magnet can be used to hold a thin sample that I have. The sample is flat and about 10mm x 10mm in size. The sample is a layer of copper, with nickel plated on that. There is then a gold coating on the nickel. The copper is 0.05mm thick, the nickel 0.005mm thick and the gold 0.005mm thick. The magnet would be in contact with the gold layer.
I had a previous sample that the magnet could lift, but this had x10 thicker nickel (0.05mm thick). I am wondering if reducing the thickness of the ferromagnetic layer will reduce ability of magnet to hold the sample against gravity ?
Thanks for the help
I had a previous sample that the magnet could lift, but this had x10 thicker nickel (0.05mm thick). I am wondering if reducing the thickness of the ferromagnetic layer will reduce ability of magnet to hold the sample against gravity ?
Thanks for the help