Grit - The measure of the fineness of an material to grind or polish a surface.
Slurry - A diamond paste used to polish metal.
Mounting - The process of compressing and heating bakelite powder around a piece of metal in order to form a solid disk or puck that can be used to handle the sample easier.
Etching - The process of using nital to reveal the grain structure in a sample for viewing under an optical microscope.
Ram - The upper and lower rods of the mounting press that are used to compress the sample. The upper one is attached by turning the levers on it and screwing it into place. The lower one is raised and lowered using a dial/knob on the machine.
Microstructure - The microscopic structure of a material.
Gloves, Apron, and Safety Glasses
Sink with running water
Blow Hose Gun
Leco Mounting Press
Polishing Machines with 500, 400, 300, 200 and 100 grit
Diamond Slurry of 5, 1, and 0.5 micrometers
A Metal Specimen (usually a steel or an alloy of steel)