1) The document discusses using aluminum oxide and silicon nitride thin films as anti-corrosion layers for magnesium-aluminum alloys and carbon steel fasteners.
2) It investigates depositing aluminum oxide using e-beam evaporation and silicon nitride using plasma-enhanced chemical vapor deposition.
3) Testing found that a double layer of aluminum oxide with a post-deposition heat treatment and UV-curable top layer provided the highest impedance and corrosion protection.
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