Results 51 to 60 of about 296,316 (315)

Dosimetry for low-energy electron beam applications at Fraunhofer FEP

Nukleonika
Accelerating electrons to achieve chemical and biological effects is a well-established competence of Fraunhofer FEP. Today, there is a large variety of low-energy electron beam applications with a broad range of absorbed doses, e.g.
Teichmann Tobias, Schaap Lotte Ligaya, Poremba Andre, Dincklage Lars, Blüthner Ralf, Sommer Marian, Henniger Jürgen, Schopf Simone, König Ulla, Mattausch Gösta   +9 more
doaj   +1 more source

Effect of melt superheat treatment on solidification behavior and microstructure of new Ni–Co based superalloy

Journal of Materials Research and Technology, 2021
A new type of Ni–Co based superalloy was prepared by vacuum induction melting (VIM), and the effects of superheat on element distribution, dendrite segregation, and solidification microstructure refinement of the new Ni–Co based superalloy are revealed ...
Hongyang Cui, Yi Tan, Rusheng Bai, Yi Li, Longhai Zhao, Xinpeng Zhuang, Yilin Wang, Ziang Chen, Pengting Li, Xiaogang You, Chuanyong Cui   +10 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Ion-beam-assisted fabrication and manipulation of metallic nanowires [PDF]

, 2015
Metallic nanowires (NWs) are the key performers for future micro/nanodevices. The controlled manoeuvring and integration of such nanoscale entities are essential requirements.
Verma, H.C., Luo, X., Verma, H. C., Rajput, N.S., Tong, Zhen, Tong, Z., Rajput, N. S.   +6 more
core   +1 more source

Publisher Correction: Automated application of low energy electron irradiation enables inactivation of pathogen- and cell-containing liquids in biomedical research and production facilities

Scientific Reports, 2020
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Jasmin Fertey, Martin Thoma, Jana Beckmann, Lea Bayer, Julia Finkensieper, Susann Reißhauer, Beatrice Sarah Berneck, Leila Issmail, Jessy Schönfelder, Javier Portillo Casado, Andre Poremba, Frank-Holm Rögner, Bastian Standfest, Gustavo R. Makert, Lia Walcher, Ann-Kathrin Kistenmacher, Stephan Fricke, Thomas Grunwald, Sebastian Ulbert   +18 more
doaj   +1 more source

Effect of Laser Heat-Treatment and Laser Nitriding on the Microstructural Evolutions and Wear Behaviors of AISI P21 Mold Steel

Metals, 2020
Laser heat-treatment and laser nitriding were conducted on an AISI P21 mold steel using a high-power diode laser with laser energy densities of 90 and 1125 J/mm2, respectively. No change in surface hardness was observed after laser heat-treatment.
Won-Sang Shin, Hyun Jong Yoo, Jeoung Han Kim, Jiyeon Choi, Eun-Joon Chun, Changkyoo Park, Yoon-Jun Kim   +6 more
doaj   +1 more source

EFFECT OF SILVER NANOPARTICLES ON THE PHYSICAL AND CHEMICAL PROPERTIES OF PLANT OILS AND THEIR ANTIMICROBIAL ACTIVITY [PDF]

Biotechnologia Acta, 2017
The aim of our research was to investigate the influence of silver nanoparticles on the physical and chemical features of plant oils of dogrose, flax, cedar, amaranth and watermelon and their antimicrobial activity.
V. M. Minarchenko, R. V. Kutsyk, N. P. Kovalska, B. O. Movchan, O. V. Hornostai,, O. M. Strumenska, L. M. Makhynia   +6 more
doaj   +1 more source

Theory of electron beam moire

Journal of Research of the National Institute of Standards and Technology, 1996
When a specimen surface carrying a high-frequency line grating is examined under a scanning electron microscope (SEM), moiré fringes are observed at several different magnifications. The fringes are characterized by their spatial frequency, orientation, and contrast.
Read, David T., Dally, James W.
openaire   +2 more sources

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Deposition of carbon by intense fast electron beam generator [PDF]

, 2002
The electron beam generator consists of a fast filamentary discharge in superposition with an ordinary glow discharge in low-pressure gases. The filling gas is helium, argon or nitrogen at approximately 0.1 Torr pressure.
Goktas, H, Esendemir, A, Oke, G, Udrea, M   +3 more
core