
Ceramic VSM is a synthetic material, not found in nature, its chemical formula is AL2O3
How it is produced: Fine Al2O3 powder is worked together with water, acids and additives until a gel is obtained, this is dried, crushed and finally sintered, the process is similar to the production of ceramics and porcelain.
Properties: High toughness and satisfactory hardness. An abrasive with good self-sharpening properties.
Main use: Grinding of metals.
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Ceramic Abrasive – VSM® Ceramics
The highest performing abrasive grain available. Here, too, we are dealing with an evolution of corundum, which is reduced to a very fine powder (in the order of a thousandth of a millimetre) and then recompacted and subjected to a sintering process (at around 1300 °C). the resulting solid is then crushed to obtain the desired size of abrasive grain.

Structure of VSM® CERAMICS
Macroscopic image: Ceramic abrasive, Grit 24.

Structure of VSM® CERAMICS
Microscopic image of the ceramic abrasive

Structure of VSM® CERAMICS
Schematic representation

VSM® CERAMICS self-healing process
Due to the machining forces, the sintered microcrystals break away, giving the abrasive new cutting edges.

Dynamics and forces in the abrasive and workpiece
The cutting forces stress the individual grain as if it were hit with a hammer. That is, not only hardness but also toughness is significant for the behaviour of the abrasive in the grinding process.