Results 41 to 50 of about 52,116 (289)

On the Concentration Overpotential of PEFC with Micromachined Ti Current Collector

Journal of Thermal Science and Technology, 2010
Micromachined titanium thin film current collector, Ti-CC, that is developed in our previous work is used to investigate the concentration overpotential due to the liquid water filling in the through-holes of Ti-CC.
Kazuyoshi FUSHINOBU, Hironori SHIOZAKI, Ken OKAZAKI   +2 more
doaj   +1 more source

Ablation debris control by means of closed thick film filtered water immersion [PDF]

, 2010
The performance of laser ablation generated debris control by means of open immersion techniques have been shown to be limited by flow surface ripple effects on the beam and the action of ablation plume pressure loss by splashing of the immersion fluid ...
Bickel W. S., Bowling R. A., C F Dowding, Dyer P. E., Dyer P. E., Hutcheson G. D., J Lawrence, Lifshitz E. M., Munson B. R.   +8 more
core   +1 more source

Influence of phase transformation on the micromachinability of laser powder bed fused Inconel 718

Scientific Reports
The characteristics of laser powder bed fusion (L-PBF) Inconel-718 (IN-718) differ from those of its wrought counterpart because of the rapid heating and cooling cycles involved during the process.
S Vishnu, Basil Kuriachen, Jose Mathew
doaj   +1 more source

New Approach to High-Speed Multi-Coordinate Milling Based on Kinematic Cutting Parameters and Acoustic Signals

Journal of Manufacturing and Materials Processing
In this work, a new approach to high-speed multi-coordinate milling was developed. The new approach is based on a new model of trochoidal machining; this is, in turn, based on the theoretical thickness of a chip and its ratio to the cutting edge’s radius,
Petr M. Pivkin, Mikhail P. Kozochkin, Artem A. Ershov, Ludmila A. Uvarova, Alexey B. Nadykto, Sergey N. Grigoriev   +5 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

Interlaced Laser Beam Scanning: A Method Enabling an Increase in the Throughput of Ultrafast Laser Machining of Borosilicate Glass

Journal of Manufacturing and Materials Processing, 2019
We provide experimental evidence that the laser beam scanning strategy has a significant influence on material removal rate in the ultrafast laser machining of glass.
Krystian L. Wlodarczyk, Amiel A. Lopes, Paul Blair, M. Mercedes Maroto-Valer, Duncan P. Hand   +4 more
doaj   +1 more source

Fabrication Methods for Microfluidic Devices: An Overview

Micromachines, 2021
Microfluidic devices offer the potential to automate a wide variety of chemical and biological operations that are applicable for diagnostic and therapeutic operations with higher efficiency as well as higher repeatability and reproducibility.
Simon M. Scott, Zulfiqur Ali
doaj   +1 more source

The Fabrication and Integration of a 15 MHz Array Within a Biopsy Needle [PDF]

, 2017
It is proposed that integrating ultrasound transducer arrays at the tip of tools such as biopsy needles could enable valuable, real-time image feedback during interventional procedures.
Cochran, Sandy, Demore, Christine, Desmulliez, Marc P.Y., Gao, Jun, McPhillips, Rachael, Vinnicombe, Sarah, Watson, David   +6 more
core   +4 more sources

Hot‐Film and Calorimetric Methods With Transient Heating for Measurement of High Biofluid Flow Rate

Advanced Functional Materials, EarlyView.
Accurate measurement of biofluid flow rate is vital for clinical diagnostics. We propose a transient heating strategy using short thermal pulses and peak temperature tracking to enhance the flow sensitivity of the hot‐Film and calorimetric methods. Simulations show how optimal heating time maximizes sensitivity across flow rates.
Yuanting Wei, Shupeng Li, Kyung Rok Pyun, Tianyu Yang, Bosung Kim, Haotian Yang, John A. Rogers, Yonggang Huang, Haohui Zhang   +8 more
wiley   +1 more source

Design, fabrication, and testing of silicon microgimbals for super-compact rigid disk drives [PDF]

, 1995
This paper documents results related to design optimization, fabrication process refinement, and micron-level static/dynamic testing of silicon micromachined microgimbals that have applications in super-compact computer disk drives as well as many other ...
Hsieh, Wen H., Miu, Denny K., Tai, Yu-Chong, Temesvary, Viktoria, Wu, Shuyun   +4 more
core   +1 more source