Shin-Etsu Rare Earth Magnets

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Vickers hardness

This is one scale expressing the hardness of a material. This hardness is defined from the ratio of the load when a diamond indenter with the shape of a square-based pyramid with an angle of 136° between opposite faces is pressed into the test piece as one term and the surface area of the indentation that results as the other term. Vickers hardness is widely used for metal materials, especially for hard materials such as magnets.

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Glossary list