Microstructure images are made of artificial materials through a microscope

Take

the test piece or specimen, cut a piece from it (if necessary). After

fixing the piece is grind and polished to reveal the

microstructure

Take the test piece or specimen, cut a piece from it (if necessary). After fixing the piece is grind, polished and then etched to reveal the microstructure

The microstructure is an arbitrary drawing of the assumed material structure