Results 71 to 80 of about 25,590 (283)

Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method

open access: yesAdvanced Engineering Materials, EarlyView.
A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase   +8 more
wiley   +1 more source

Optimization of 5-Axis milling processes based on the process models with application to airfoil machining [PDF]

open access: yes, 2007
5-axis milling is widely used in machining of complex surfaces such as airfoils. Improper selection of machining parameters may cause low productivity and undesired results during machining.
Budak, Erhan, Tunc, Taner
core  

Fabrication and magnetic control of Y3Fe5O12 cantilevers

open access: yes, 2017
We have fabricated ferrite cantilevers in which their vibrational properties can be controlled by external magnetic fields. Submicron-scale cantilever structures were made from Y3Fe5O12 (YIG) films by physical etching combined with use of a focused ion ...
Chudo, Hiroyuki   +8 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Normal-Unit-Vector-Based Tool Path Generation Using a Modified Local Interpolation for Ball-End Milling

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
This paper describes a novel tool path generation for three-axis ball-end milling using a local interpolation. After a modified local interpolation using normal unit vectors is introduced, generation of a parametric offset geometry is presented based on ...
Tsutomu SEKINE, Toshiyuki OBIKAWA
doaj   +1 more source

Влияние условий контурного фрезерования на напряженное состояние и разрушение пакетов металл - композит [PDF]

open access: yes, 2016
Представлены результаты расчетов влияния условий контурного фрезерования на напряженное состояние и разрушение пакетов металл - композит в программном пакете ANSYS.
Прилипко, А. Л.   +1 more
core  

A multi-sensor based online tool condition monitoring system for milling process [PDF]

open access: yes, 2018
Tool condition monitoring has been considered as one of the key enabling technologies for manufacturing optimization. Due to the high cost and limited system openness, the relevant developed systems have not been widely adopted by industries, especially ...
Li, Weidong   +4 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Evaluation of Tool Path Strategy and Cooling Condition Effects on the Cutting Force and Surface Quality in Micromilling Operations

open access: yesMetals, 2017
Compared to milling on a macro scale, the micromilling process has several cumbersome points that need to be addressed. Rapid tool wear and fracture, severe burr formation, and poor surface quality are the major problems encountered in the micromilling ...
Ugur Koklu, Gültekin Basmaci
doaj   +1 more source

Grinding arrangement for ball nose milling cutters [PDF]

open access: yes, 1974
A grinding arrangement for spiral fluted ball nose end mills and like tools includes a tool holder for positioning the tool relative to a grinding wheel.
Burch, C. F.
core   +1 more source

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