Structural Changes during Plastic Deformation at Crack Tips in PVDF Films: A Scanning X-ray Scattering Study
| العنوان: | Structural Changes during Plastic Deformation at Crack Tips in PVDF Films: A Scanning X-ray Scattering Study |
|---|---|
| المؤلفون: | Peter Fratzl, Reinhold W. Lang, Gernot M. Wallner, Günther A. Maier |
| المصدر: | Macromolecules. 38:6099-6105 |
| بيانات النشر: | American Chemical Society (ACS), 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Toughness, Materials science, Polymers and Plastics, Scattering, Organic Chemistry, Fracture mechanics, Context (language use), Polymer, Inorganic Chemistry, Stress (mechanics), Crystallinity, chemistry, Materials Chemistry, Fracture (geology), Composite material |
| الوصف: | The fracture behavior of semicrystalline polymers is controlled by the micromechanisms associated with formation and breakdown of a plastic deformation region at notches, cracks, or other stress raising defects. In this context, it is widely acknowledged that material toughness may arise from the volume of the plastically deformed crack tip region along with energy dissipating structural changes of the material within this region. In general, a wide variety of such structural mechanisms are concernable, and little is known so far on specific details. Recently, scanning small- and wide-angle X-ray scattering approaches with positional resolution in the micron range have demonstrated to make such structural information at the supramolecular level accessible. This methodology was used in the present investigation to study the plastic deformation-induced structural changes ahead and around crack tips in a film of poly(vinylidene fluoride) (PVDF). The PVDF investigated exhibited a crystalline morphology of the... |
| تدمد: | 1520-5835 0024-9297 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::bd01b0ea3e80324eaca37bff092bd2cdTest https://doi.org/10.1021/ma050390fTest |
| رقم الانضمام: | edsair.doi...........bd01b0ea3e80324eaca37bff092bd2cd |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15205835 00249297 |
|---|