Results 91 to 100 of about 11,738 (294)

A Robotic Urinary Bladder Enabling Volume Monitoring and Assisted Micturition

Advanced Intelligent Systems, EarlyView.
An implantable robotic bladder is presented that can store urine in an origami‐designed enclosure. An inductance sensing principle can monitor and transfer the urine volume in real‐time. It can actively expand based on the amount of urine collected from kidneys and apply on‐demand mechanical compression to assist urination.
Izadyar Tamadon, Michele Ibrahimi, Federica Semproni, Veronica Iacovacci, Arianna Menciassi   +4 more
wiley   +1 more source

Environmental protection of titanium alloys at high temperatures [PDF]

Various concepts were evaluated for protecting titanium alloys from oxygen contamination at 922 K (1200 F) and from hot-salt stress-corrosion at 755 K (900 F).
Seltzer, M. S., Wood, R. A., Wright, I. G.   +2 more
core   +1 more source

Microstructure and oxide particle stability in a novel ODS γ-TiAl alloy processed by spark plasma sintering and laser additive manufacturing [PDF]

, 2017
In this work, a novel oxide dispersion strengthened titanium aluminide alloy (Ti-45Al-3Nb-
Barras, J, Bauer, T, Colella, A, Dasargyri, G, Dawson, K, Hauser, C, Kenel, C, Leinenbach, C, Spierings, AB, Tatlock, GJ, Wegener, K   +10 more
core   +1 more source

Phase‐Change Alloys Enable Localized Reversible Stiffening and Actuation in Steerable Eversion Tip‐Growing Robots

Advanced Intelligent Systems, EarlyView.
This work presents a tip‐growing eversion robot that uses phase‐changing alloys for reversible stiffening and localized actuation, achieving 43× stiffness modulation, 15× force amplification, and segmental steering. The system enables precise navigation and force delivery in constrained, tortuous pathways.
Shamsa Al Harthy, S.M.Hadi Sadati, Shannon C. Stockdale, Radhouene Neji, Christos Bergeles   +4 more
wiley   +1 more source

Effects of Composition on Melt Fillability and Impact Resistance of TiAl Alloys for Thin-Blade Turbine Wheels: Laboratory Predictions and Product Verification

Metals
Scaling up the production of TiAl turbine wheels for passenger car turbochargers requires the fabrication of thin blades that are similar to those of nickel-based superalloys.
Toshimitsu Tetsui, Yu-Yao Lee, Thomas Vaubois, Pierre Sallot   +3 more
doaj   +1 more source

Connection between charge transfer and alloying core-level shifts based on density-functional calculations

, 2000
The measurement of alloying core-level binding energy (CLBE) shifts has been used to give a precise meaning to the fundamental concept of charge transfer.
Fiorentini, V., Methfessel, M., Oppo, S.
core   +1 more source

On high-speed turning of a third-generation gamma titanium aluminide [PDF]

, 2012
Gamma titanium aluminides are heat-resistant intermetallic alloys predestined to be employed in components suffering from high mechanical stresses and thermal loads.
A Beranoagirre, AL Mantle, AL Mantle, ARC Sharman, ARC Sharman, CM Austin, Dieter Lung, DK Aspinwall, E Uhlmann, EA Loria, EA Loria, Fritz Klocke, J Aguilar, K Weinert, K Weinert, Luca Settineri, M Roth, Martin Arft, Paolo Claudio Priarone, SA Bentley, T Tetsui   +20 more
core   +1 more source

Deformation and damage behaviors of as-cast TiAl-Nb alloy during creep

Progress in Natural Science: Materials International, 2018
Abstract By means of creep properties measurement and microstructure observation, the deformation and damage behavior of an as-cast TiAl-Nb alloy during creep at temperature near 750 °C were investigated. The results showed that the microstructure of the alloy consisted of lamellar γ/α2 phase, and the boundaries consisted of γ phase located in ...
Shunke Zhang, Sugui Tian, Xiaoxia Lv, Huichen Yu, Ning Tian, Zehui Jiao, Guoqi Zhao, Deyuan Li   +7 more
openaire   +1 more source

Myoelectric Origami‐Based Soft Robotic Knee Exoskeleton to Enhance Sit‐to‐Stand Assistance in Elderly Populations

Advanced Intelligent Systems, EarlyView.
This work presents a lightweight Miura‐origami soft knee exoskeleton powered by vacuum actuation and integrated with a multimodal physiological intent‐recognition system, providing real‐time assistance during sit‐to‐stand movement to reduce muscle effort and improve user comfort.
Yuchuan Jia, Xingjian Ye, Xuanyi Zhou, Yong Ling, Daniela Rus, Chen‐Hua Yeow   +5 more
wiley   +1 more source

The promise of eutectics for aircraft turbines [PDF]

The current status of the first generation eutectics, gamma/gamma transition - delta and NiTaC-13, is described in detail. Several second generation systems, such as gamma/gamma transition - alpha and NiTaC 3-116A, gamma - beta, and COTAC 74 are also ...
Gray, H. R.
core   +1 more source