Results 51 to 60 of about 14,645 (268)

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Solute Segregation and Pinning Effect on Lateral Twin Boundary in Magnesium

Metals
Deformation twinning creates a three-dimensional twin domain via the migration of forward, normal and lateral twin boundaries (TBs) with respect to twin shear direction, normal to twin plane and twin lateral direction.
Haoyan Zhang, Qi Zhang, Haowen Sun, Mingyu Gong, Jian Wang, Yue Liu   +5 more
doaj   +1 more source

Comparison of the effect of different infusion rates of sufentanil on surgical stress index during cranial pinning in children under general anaesthesia: a randomized controlled study

BMC Anesthesiology, 2017
Background Surgical stress index (SSI) is an established indicator for intraoperative nociception. Opioids are used to block stimulus of cranial pinning in neurosurgery.
In-Kyung Song, Sang-Hwan Ji, Eun-Hee Kim, Ji-Hyun Lee, Jin-Tae Kim, Hee-Soo Kim   +5 more
doaj   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Peak effect at the weak to strong pinning crossover [PDF]

Physica C: Superconductivity, 2004
In type-II superconductors, the magnetic field enters in the form of vortices; their flow under application of a current introduces dissipation and thus destroys the defining property of a superconductor. Vortices get immobilized by pinning through material defects, thus resurrecting the supercurrent.
Koopmann, J. A. G., Geshkenbein, V. B., Blatter, G.   +2 more
openaire   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Variasi Tekanan Oksigen dalam Penumbuhan Kristal Tunggal Superkonduktor Bi2Sr2CaCu2O8+δ

Journal of Mathematical and Fundamental Sciences, 2019
Sari. Dalam tulisan ini disajikan hasil pembuatan kristral tunggal bahan superkonduktor Bi2Sr2CaCu2O8+δ dengan metode travelling solvent floating zone (TSFZ) dalam atmosfer yang benvariasi, yaitu dalam udara dan dalam oksigen (O2) 1 bar dan 2,5 bar ...
Darminto Darminto, A.A. Nugroho, A.A. Menovsky, A. Rusydi, W. Loeksmanto   +4 more
doaj  

Flux-pinning behaviors and mechanism according to dopant level in (Fe, Ti) particle-doped $$\text {MgB}_2$$ MgB 2 superconductor

Scientific Reports, 2021
We have studied flux-pinning effects of $$\text {MgB}_2$$ MgB 2 superconductor by doping (Fe, Ti) particles of which radius is 163 nm on average. 5 wt.% (Fe, Ti) doped $$\text {MgB}_2$$ MgB 2 among the specimens showed the best field dependence of ...
H. B. Lee, G. C. Kim, Young Jin Shon, Dongjin Kim, Y. C. Kim   +4 more
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Effect of the Starting Point of Half-Pin Insertion on the Insertional Torque of the Pin at the Tibia

Yonsei Medical Journal, 2015
The authors have observed a failure to achieve secure fixation in elderly patients when inserting a half-pin at the anteromedial surface of the tibia. The purpose of this study was to compare two methods for inserting a half-pin at tibia diaphysis in elderly patients.Twenty cadaveric tibias were divided into Group C or V.
Kim, Sung-Jae, Kim, Sung-Hwan, Kim, Young-Hwan, Chun, Yong-Min   +3 more
openaire   +3 more sources