Synthesis and Real Structure Group

Grinder & Polisher


This preparation produces flat, smotth surfaces with minimum mechanical damage.
It can be used to reduce specimen thickness and to polish the surface.

Procedure: The specimen is glued on a mounting cylinder, which is placed into a disc grinder. The disc grinder achieve excellent control of specimen thickness and it ensures uniformly thin specimens (10 µm accuracy). The friction of grains of a material harder than the object to be polished enables precise removal of material.
It is necessary to use a fluid, which acts as a lubricant and as a cooling agent. This technique is used to grind and polish almost all materials in bulk form, compact and as thin films. Fine particles and porous materials suit this preparation, provided that they have been embedded before. Polishing begins with a coarse abrasive and carries on progessively with finder abrasive grains. This produces a surface of decreasing roughness homogeneously eroded.
It can also be applied to multiphased materials and those containing precipitates or segregations.