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Joint Synchrotron development set to advance Agricultural Research

In efforts to enhance agricultural research The Brazilian Center for Research in Energy and Materials (CNPEM) and The Canadian Light Source (CLS) located at the University Saskatchewan are pooling their technical resources and knowledge capabilities to advance accelerator and machine development. Click to read more. ....

Brazilian Synchrotron Light Laboratory , University Saskatchewan , Brazilian Ministry Of Science , Brazilian Center , Canadian Light Source , Bill Matiko , Chief Operating Officer , Brazilian Ministry , Maple Project ,

"Synchrotron-Based Temperature-Dependent Terahertz and Far-Infrared Spe" by Hao Zhang and Qiao Yan

Synchrotron-based terahertz and far-infrared spectra of aerographite and single-walled carbon nanotube aerogel were acquired using the terahertz/far-infrared beamline at the Australian Synchrotron in the frequency range of 7–1000 cm−1 and temperature range of 6–300 K. We observe infrared absorption features at ~ 35, ~ 79, and ~ 889 cm−1 for aerographite and ~ 35, ~ 79, ~ 685, ~ 923, and ~ 950 cm−1 for single-walled carbon nanotube aerogel. Temperature dependences of the terahertz and far-infrared spectra reveal frequency shifts of the infrared absorption peaks with temperature. The “red-shift” behavior of peak positions (~ 35 and ~ 79 cm−1) can be attributed to the anharmonicity of vibrational potentials. The ~ 35 cm−1 mode is expected to be only Raman active. Its appearance in our infrared spectra suggests that structural disorder in our samples relaxed this selection rule. ....

Australian Synchrotron , Far Infrared , Egative Thermal Expansion , Ingle Walled Carbon Nanotube Aerogel , Temperature Dependence ,

"On the effect of heat input and interpass temperature on the performan" by Chengxun Zhang, Zhijun Qiu et al.

Relatively high heat input and heat accumulation are treated as critical challenges to affect the qualities and performances of components fabricated by wire arc additive manufacturing (WAAM). In this study, various heat inputs, namely 276, 552 and 828 J/mm, were performed to fabricate three thin-wall Inconel 625 structures by cold metal transfer (CMT)-based WAAM, respec-tively, and active interpass cooling was conducted to limit heat accumulation. The macrostructure, microstructure and mechanical properties of the produced components by CMT were investigated. It was found that the increased heat input can deteriorate surface roughness, and the size of dendrite arm spacing increases with increasing heat input, thus leading to the deterioration of mechanical properties. Lower heat input and application of active interpass cooling can be an effective method to refine microstructure and reduce anisotropy. This study enhances the understanding of interpass temperature control and the effec ....

Active Interpass Cooling , Old Metal Transfer Cmt , Neat Input , Inconel 625 ,

AIXTRON supports young academics in researching of future semiconductor quantum components

AIXTRON is a partner of the new EU doctoral program QUANTIMONY / Research focus is on semiconductor materials and devices containing antimony / Applications are optoelectronics, datacomms and energy as well as future quantum semiconductor technologies. ....

United States , Nordrhein Westfalen , Michael Heuken , Carlos Ufscar , Tiberlab Srl , Nanoplus Gmb , Nextnano Gmb , Agencia Estatal Consejo , European Union Horizon , Eindhoven University Of Technology , University Of Rome Tor Vergata , Lancaster Materials Analysis Ltd , Technical University Berlin , National Synchrotron Radiation Research Center , Cardiff University , University Of Wu , University Of Warwick , Lund University , Industrial Engagement Committee , Atomic Level Solutions , Lancaster University , Training Network , Quantum Semiconductor Technologies Exploiting , Vice President Advanced Technologies , Industrial Engagement , Universidad Polite ,

X-Ray Analysis Techniques Characterize Structure of Halide Perovskites

This article considers the use of X-ray spectroscopy and synchrotron radiation to characterize the structure of halide perovskites. ....

Niethammer Zoltan Shutterstock , X Ray Spectroscopies , Rebecca Ingle , Tomas Salkus Shutterstock , Photochemistry Reviews , Perovskite Solar , Decisive Structural , Functional Characterization , Halide Perovskites , X Ray , Ix Ray Analysis , Halide Perovskites ,