All-perovskite tandem solar cells are promising candidates for next-generation photovoltaics, as they harvest sunlight more ...

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 ...

Decarburization refers to a loss of carbon from a metal surface, particularly cast irons and steels, and occurs due to heating in a medium, which in turn reacts with the carbon atoms. Case hardening ...

This class presents a description of each hardness testing method, along with discussions on how to choose and perform a test, how to read hardness ratings, and how to prevent common errors. Hardness ...

• Engineers can use hardness testing to verify the composition or heat-treatment history of materials. • Rockwell, Brinell, Vickers, and Shore are common hardness tests. Their use depends on the ...

Photo by MSVG/Flickr Gorilla Glass: harder than keys, not as tough as gravity. During a vacation earlier this month, my wife and I put our smartphones in a big, loose beach bag, the kind with bamboo ...