Is the fracture toughness, (K_{l c}), of the common polymers polycarbonate, (mathrm{ABS}), or polystyrene larger or smaller
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Is the fracture toughness, \(K_{l c}\), of the common polymers polycarbonate, \(\mathrm{ABS}\), or polystyrene larger or smaller than the engineering ceramic alumina, \(\mathrm{Al}_{2} \mathrm{O}_{3}\) ? Are their toughness qualities \(G_{1 c}=K_{1 c}^{2} / E\) larger or smaller? The \(K_{l c}-E\) chart, Fig. 3.7, will help.
Fig. 3.7
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