Results 1 to 10 of about 279,086 (273)

Multi-field nanoindentation apparatus for measuring local mechanical properties of materials in external magnetic and electric fields [PDF]

open access: yesReview of Scientific Instruments, 2013
Nano/micro-scale mechanical properties of multiferroic materials can be controlled by the external magnetic or electric field due to the coupling interaction. For the first time, a modularized multi-field nanoindentation apparatus for carrying out testing on materials in external magnetostatic/electrostatic field is constructed.
Zhou, Hao   +5 more
openaire   +5 more sources

Apparatus for Seebeck coefficient and electrical resistivity measurements of bulk thermoelectric materials at high temperature [PDF]

open access: yesReview of Scientific Instruments, 2005
A high temperature Seebeck coefficient and electrical resistivity measurement apparatus has been designed and built for measuring advanced thermoelectric materials. The apparatus covers the range of temperatures from 300to1300K. Different sources of errors involved in the two measurements are discussed.
Zhou, Zhenhua, Uher, Ctirad
openaire   +4 more sources

Sunlight tracking and concentrating accelerated weathering test applied in weatherability evaluation and service life prediction of polymeric materials: A review

open access: yesPolymer Testing, 2021
Artificial accelerated aging tests, which usually expose materials to artificial light sources and simulated environment conditions, are commonly conducted to evaluate weatherability and service life of polymeric materials.
Jiaxiang Qin   +12 more
doaj   +1 more source

Ultrasonic brazing of Zr-based bulk metallic glass and 1060 Al alloy using Zn-3Al filler metal

open access: yesJournal of Advanced Joining Processes, 2022
Ultrasonic brazing of Zr-based bulk metallic glasses (Zr-BMG) and 1060-Al alloy dissimilar was realized by using a Zn-3Al filler metal. A firm metallurgical bonding was obtained at the dissimilar joint interfaces.
Xingyi Zhang   +6 more
doaj   +1 more source

Controllable and Scale-Up Synthesis of Nickel-Cobalt Boride@Borate/RGO Nanoflakes via Reactive Impingement Mixing: A High-Performance Supercapacitor Electrode and Electrocatalyst

open access: yesFrontiers in Chemistry, 2022
Large-scale synthesis of graphene-based nanomaterials in stirred tank reactor (STR) often results in serious agglomeration because of the poor control during micromixing process.
Yudan Qian   +12 more
doaj   +1 more source

Simple hydrogen gas production method using waste silicon

open access: yesResults in Materials, 2022
We investigated a simple and safe method for producing hydrogen using Si powder, which is discarded in the semiconductor industry. Using the reaction of generating hydrogen from Si powder and an aqueous NaOH solution, a simple hydrogen generator that ...
Susumu Nakayama   +2 more
doaj   +1 more source

Improvement of technical means for recycling of technogenic waste to construction fiber

open access: yesCase Studies in Construction Materials, 2022
Currently, a very significant environmental problem is the increase in the accumulation of solid domestic and industrial waste, including the polymer composition.
Sergey Klyuev   +11 more
doaj   +1 more source

Thermodynamic analysis on a magnetic refrigeration system

open access: yesInternational Journal of Air-Conditioning and Refrigeration, 2023
Magnetic refrigeration utilizes the magnetocaloric effect of a magnetic material, whose temperature changes according to the change of magnetic field strength.
Jong Suk Lee
doaj   +1 more source

Broadband, High-Linearity Switches for Millimeter-Wave Mixers Using Scaled SOI CMOS

open access: yesIEEE Open Journal of the Solid-State Circuits Society, 2022
This work demonstrates new circuit techniques in distributed-stacked-complimentary (DiSCo) switches that enable picosecond switching speed in RF CMOS SOI switches.
Cameron Hill, James F. Buckwalter
doaj   +1 more source

Low-Power RF Wake-Up Receivers: Analysis, Tradeoffs, and Design

open access: yesIEEE Open Journal of the Solid-State Circuits Society, 2022
Wake-up receivers (WuRXs) offer a potentially energy-efficient means to enable asynchronous wake-up of higher power and higher performance radios without needing frequent (often energy-expensive) synchronization.
Patrick P. Mercier   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy