elastic energy

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Boron nitride, tougher than it looks

5 min read
Scicomm boron nitride crack deflection elastic energy fracture mechanics free energy graphene hexagonal boron nitride monolayer graphene monolayer h-BN sphalerite surface energy tensile strength wearable electronics wurtzite Griffith's law

During World War I, a British aeronautical engineer named A.A. Griffith noticed something odd about glass. He found that the atomic bonds in glass needed 10,000 megapascals of stress to break apart –…