Why is glass brittle?
What makes glass brittle? I am posting this because I don't have a good answer for it, although I can think of three reasons:
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The disordered structure of glass. The problem with this explanation
is that silica is brittle in both ordered (quartz) and disordered (fused
silica) forms.
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The covalent type of atomic bonds. The problem with this explanation is
that metallic glasses do not have covalent bonds, but are brittle.