Polymers | 卷:11 |
In Situ WAXD and SAXS during Tensile Deformation Of Moulded and Sintered Polyamide 12 | |
Leon Govaert1  Fabio Paolucci1  Gerrit Peters1  | |
[1] Department of Mechanical Engineering, Materials Technology Institute, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; | |
关键词: SLS; mechanical properties; Polyamide 12; SAXS; WAXD; | |
DOI : 10.3390/polym11061001 | |
来源: DOAJ |
【 摘 要 】
To provide knowledge to improve the mechanical performance of Polyamide 12 (PA12) sintered products, we have studied experimentally the mechanical response and structure development under constant strain rate of compression moulded and laser sintered PA12 by means of in situ small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) experiments. It is found that at low temperatures, i.e., below the glass transition temperature, the brittle failure of laser sintered samples is determined by the fast formation of voids that originate at the beginning of the macroscopic plastic deformation. This effect appears to be faster at temperatures below room temperature and it is less effective at higher temperatures. When tested at 120
【 授权许可】
Unknown