R-curve behaviour of PZT ceramics near t
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Sunggi Baik; Soo Min Lee
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Article
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1994
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Springer
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English
โ 766 KB
The mechanical failure of PZT ceramics was characterized by measuring R-curves for compositions near and at the morphotropic phase boundary (MPB) where tetragonal and rhombohedral phases coexist in equal quantities. The R-curve behaviours (an increasing fracture toughness with crack extension) were