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Poly(l-lactic acid)(PLLA) is a kind of semi-crystalline polymers that could be hydrolyzed through hydrolytic scission of the ester groups. Because of its biocompatibility and biodegradability, it is used widely in medical applications, which degradation and change in mechanical properties during hydrolyzing were the key factors. A.C. Renouf-Glauser et al. had investigated the effect of crystallinity...
Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (P3HB-co-3HV) is a promising semi-crystalline biodegradable polymer that may be used for a wide range of medical applications. Prior investigations were focused on the effect of hydrolysis and enzyme degradation, but few studies focused on the deformation mechanism of thin films. In this study we aim to reveal how the spherulites were deformed and to investigate...
The elevated temperature mechanical behavior and deformation characteristics of Al 2 O 3 fiber-reinforced NiAlFe matrix composites fabricated by powder spray and tape casting techniques were investigated. Tensile tests were conducted at room temperature, 760, 870, and 980 °C. Flexural creep tests were conducted at 700 °C with stresses ranging from 100 to 250 MPa. The role of fiber,...
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