Results 91 to 100 of about 36,759 (293)

Kapitza resistance cooling of single crystal (111) niobium for superconducting rf cavities

Physical Review Special Topics. Accelerators and Beams, 2010
The use of large grains or single crystal niobium to improve the Q factor of superconducting rf cavities for particle accelerators, is presently under study.
Jay Amrit, Claire Z. Antoine
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

Niobium-titanium (Nb-Ti) superconducting joints for persistent-mode operation

, 2019
Superconducting joints are essential for persistent-mode operation in a superconducting magnet system to produce an ultra-stable magnetic field. Herein, we report rationally designed niobium-titanium (Nb-Ti) superconducting joints and their evaluation ...
Wenbin Qiu (20118462), Su Hun Kim (20126133), Hiroaki Kumakura (5814158), Akiyoshi Matsumoto (9943052), Minoru Maeda (20116890), Gen Nishijima (20244120), Jung Ho Kim (19586458), Seyong Choi (9943058), Dipakkumar Patel (20125608)   +8 more
core   +1 more source

Half-Sandwich Imido into related complexes of niobium and tantulum - relative of the zirconocene family [PDF]

, 1992
This thesis describes studies directed towards the preparation of half- sandwich niobium and tantalirai compounds containing imido and phosphino-carbene ligands, with particular emphasis on the relationship of such species with bent metallocene complexes
Poole, Andrew D
core  

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Niobium pentoxide hollow nanospheres with enhanced visible light photocatalytic activity

, 2013
Herein, we developed a simple template-free synthetic method for producing niobium pentoxide (Nb2O5) hollow nanospheres, and fabricated KNbO3 hollow nanospheres which retained the morphology of the template Nb2O5 hollow nanospheres by the molten salt ...
Deng, Jinxia, Wang, Zheng, Chen, Jun, Li, Lihong, Yu, Ranbo, Xing, Xianran   +5 more
core   +1 more source

Deciphering the Photopolymerization‐Induced Nanostructures and Interface Formation for Submicrometer Additive Manufacturing

Advanced Functional Materials, EarlyView.
This work reveals the UV‐curing‐induced monomer‐rich domain, oligomer‐rich domain, and entangled oligomer domain. The cured submicron films in stressed state induce interlayer nano‐wrinkle structures during the deposition of the second layer. Stress‐free cured films in relaxed state form non‐diffusive, diffusive and semi‐diffusive interlayer ...
Shouzheng Chen, Yufeng Zhai, Jungui Zhou, Lixing Li, Simon Schraad, Guangjiu Pan, Xuehe Jiang, Sarathlal Koyiloth Vayalil, Rolf A. T. M. van Benthem, Julien R. G. Navarro, Johan F. G. A. Jansen, Mats K. G. Johansson, Peter Müller‐Buschbaum, Stephan V. Roth   +13 more
wiley   +1 more source

A kinetic study of the leaching of a low-grade niobium-tantalum ore by concentrated KOH solution

, 2005
A kinetic study of the leaching of a low-grade niobium-tantalum ore by concentrated KOH solution under atmospheric pressure has been investigated. The effects of reaction temperature, KOH concentration, agitation speed, particle size and alkalito-ore ...
Yi, DQ, Zhou, HM, Zhang, Y, Zheng, SL
core   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

Advanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee, Joonbong Lee, Jinho Byun, Sang‐Hyeok Yang, A young Cho, Sangwoo Lee, Dae Haa Ryu, Hyunbin Chung, Hee Seo Yun, Moon Seop Choi, Yesul Choi, Sungkyun Park, Min‐Hyung Jung, Dongwon Lee, Yoon‐Uk Heo, Hu Young Jeong, Hongseok Kim, Shinhyeong Lee, Yunseok Kim, Young‐Min Kim, Jaekwang Lee, Taekjib Choi   +21 more
wiley   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

Advanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman, Syed Hussain Wajahat, Saad Al‐Saadi, Robin E. Schäublin, Peng Zeng, Solomon Ansah, Jixing Lin, Xian Tong, Cuie Wen, Jörg F. Löffler   +9 more
wiley   +1 more source