The cloudburst test uses steel balls dropped from a predetermined height to determine it, and its micro-variety can be measured by the Knoop test. The Rockwell test measures it based on resistance to a static or dynamic load, while the Vickers test uses a diamond-pyramid penetrator is used, and the Brinell test uses a tungsten carbide ball's indentation. It is often measured by scratch tests, such as one named after Bierbaum, and another more famous scale. For 10 points,
The cloudburst test uses steel balls dropped from a predetermined height to determine it, and its micro-variety can be measured by the Knoop test. The Rockwell test measures it based on resistance to a static or dynamic load, while the Vickers test uses a diamond-pyramid penetrator is used, and the Brinell test uses a tungsten carbide ball's indentation. It is often measured by scratch tests, such as one named after Bierbaum, and another more famous scale. For 10 points, name this property of a material that is most often measured on the Mohs scale.
The cloudburst test uses steel balls dropped from a predetermined height to determine it, and its micro-variety can be measured by the Knoop test.
{hardness}