A material’s hardness relates to its mechanical resistance when subjected to mechanical indentation by another harder body. Diamond is considered the hardest natural material and is typically used for ...

Ceramic coatings are used in motorsports to protect against heat and wear. Image Credits: Marcin Krzyzaks/shutterstock.com Ceramic coatings are used in a wide variety of industrial and commercial ...

In my July 2005 column, a new ASTM standard shear test method was introduced 1. At that time, I raised the question, Why do we need another shear test method for composite materials?, with the promise ...

When designing metal parts, it's important to specify their hardness. However, many engineers have only a shaky understanding of what hardness actually is, or how it's measured. There are good reasons ...