Results 41 to 50 of about 14,645 (268)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Morphology Effect of Puffball Spores on Hemostasis: A Promising Solution for Hemostatic Challenges

Advanced Science
Hemostatic materials play a crucial role in wound healing by promoting blood concentration or releasing procoagulant factors. While hydrophilic hemostatic materials are effective, they may cause excessive blood loss and difficulty removing from the wound.
Xuechang Pei, Yue Feng, Yanru Wu, Jie Zhang, Jianlan Li, Shutai Jiang, Huijun Huang, Ping Qin, Guoqing Li, Xinrui Guo, Mingxian Liu, Chuanxi Wang, Hao Gao   +12 more
doaj   +1 more source

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

Enhanced Thermal Stability of Carbonyl Iron Nanocrystalline Microwave Absorbents by Pinning Grain Boundaries with SiBaFe Alloy Nanoparticles

Nanomaterials
Nanocrystalline carbonyl iron (CI) particles are promising microwave absorbents at elevated temperature, whereas their excessive grain boundary energy leads to the growth of nanograins and a deterioration in permeability.
Yifan Xu, Zhihong Chen, Ziwen Fu, Yuchen Hu, Yunhao Luo, Wei Li, Jianguo Guan   +6 more
doaj   +1 more source

Plasma‐Optical Effect in GaAs PIN Photodiodes [PDF]

Active and Passive Electronic Components, 1992
This paper is devoted to the analysis of the Plasma‐Optical Effect in GaAs PIN photodiodes operating at the infrared range. An approximated expression for the variation of the refractive index in the intrinsic zone of a AsGa PIN photodiode is obtained. This variation is induced by the charge of the device.
M. A. Grado Caffaro, M. Grado Caffaro
openaire   +2 more sources

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Strengthening of composite T-joints using Ø 0.11 mm Z-pins via an ultrasound-guided insertion process

Composites Part C: Open Access, 2022
This paper investigates the effect of Ø 0.11 mm Z-pinning on the structural properties of the composite T-joints via the ultrasound-guided insertion process.
Shaohua Fei, Weiwei Wang, Huiming Ding, Haijin Wang, Jiangxiong Li, Yinglin Ke   +5 more
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Flux expulsion in niobium superconducting radio-frequency cavities of different purity and essential contributions to the flux sensitivity

Physical Review Accelerators and Beams, 2020
Magnetic flux trapped during the cooldown of superconducting radio-frequency cavities through the transition temperature due to incomplete Meissner state is known to be a significant source of radio-frequency losses.
P. Dhakal, G. Ciovati, A. Gurevich
doaj   +1 more source

Decadal changes of Campbell Glacier Tongue in East Antarctica from 2010 to 2020 and implications of ice pinning conditions analyzed by optical and SAR datasets

GIScience & Remote Sensing, 2022
Changes in ice shelf dynamics significantly impact the discharge rate of grounded ice, sea ice formation, and marine environments. In particular, changes of a sub-shelf pinning point induce complex dynamics of an ice shelf. In this study, we investigated
Hyangsun Han, Seung Hee Kim, Sanghee Kim
doaj   +1 more source