Vickers hardness is a measure of a material's hardness, determined by pressing a diamond-shaped indenter into its surface under a specific load. The size of the indentation left in the material is then measured, and the hardness value is calculated based on the load and the indentation's dimensions. This method is applicable to a wide range of materials, including metals and ceramics. The Vickers hardness test is advantageous because it can be used on thin materials and small samples. It provides a continuous scale of hardness values, making it useful for comparing different materials. The results are expressed in HV (Vickers hardness number), which helps in material selection and quality control.