Ceramic Hardness Testing

Hardness testing is frequently used for characterizing mechanical properties of engineering ceramics.

Ceramic hardness testing.

The method for measuring the hardness of fine ceramics is defined in jis r 1610 iso 14705. The grading of the scale ranges from 0 to 9 and the h indicates the hardness of that specific grade. The pencil scale is a test of hardness that helps to explain to consumers how hard the ceramic coating will be once it s cured to the surface. Ceramic hardness measurements in engineering are generally measured using a vickers hardness test.

The mechanical property of a material s hardness is defined as a specific and calculable measure of how resistant a material is to compressive force. The purpose of hardness testing for ceramic coatings. The hardness of fine ceramics is generally indicated using a vickers hardness number. Hardness is one of the most frequently measured properties of a ceramic.

In this test a pyramidal diamond indenter is pressed into a polished surface under known loading conditions and the size of the indentation is related to the hardness of the material. An indenter of well defined geometry is pressed into the surface of the sample under a. Its value helps to characterize resistance to deformation densification and fracture.