Can mica pieces on microwave ovens be replaced by something else?
No, because it is insulated and less electricity, it cannot be replaced by other metals
It can be replaced with a piece of frosted glass of the same size, but how to fix it requires your head.
The mica sheet is mainly used in food heating process, such as water or oil to prevent something splashed to the magnetron, play a protective role. Mainly because of mica crystal thin insulation performance is good, not what can replace it. Shops selling appliances generally sell it.
