Results 51 to 60 of about 6,033 (240)

Experimental research on multi-structural parameter optimization of rhombic tooth endmill based on DOE in CFRP milling

open access: yesJournal of Materials Research and Technology
The rhombic tooth endmill, with its complex structure, is a frequently utilized cutting tool when milling carbon fiber reinforced polymer (CFRP). It offers the advantages of a small cutting force and good machining surface quality.
Xiaochen Zuo   +5 more
doaj   +1 more source

Engineering Thermochemistry and Process Technologies to Enable Gigaton‐Scale Sustainable Biochar Production

open access: yesSusMat, EarlyView.
This review examines large‐scale biochar production technologies and process engineering from an engineering thermochemistry perspective. At the level of thermochemical fundamentals, we discuss thermochemical techniques, pyrolysis mechanisms, and key parameters governing biochar formation.
Dengguo Lai   +12 more
wiley   +1 more source

Nanostructured thermally sprayed cemented carbide layer fabricated by friction stir processing [PDF]

open access: yes
The modification of a thermally sprayed cemented carbide (WC-CrC-Ni) layer by friction stir processing (FSP) was studied. The cemented carbide layer was successfully modified using a sintered cemented carbide (WC-Co) tool.
Morisada, Yoshiaki, Fujii, Hidetoshi
core   +2 more sources

Design and magnetic properties of gradient Fe(Si)/Fe structure soft magnetic composites

open access: yesJournal of Materials Research and Technology
Soft magnetic composites (SMCs) play a key role in the electric energy conversion, developing higher magnetization and lower loss SMCs is a strategy for modern power system and electric devices.
Xiaoyu Wang, Ziru Zheng, Kun Peng
doaj   +1 more source

Quantum State‐Resolved Photodissociation Dynamics Study of Transition‐Metal Carbonyl and Nitrosyl

open access: yesThe Chemical Record, EarlyView.
State‐resolved scattering measurements provide experimental visualization of nuclear motions in reacting molecules. Carbonyls and nitrosyls are typical ligands in most of the transition‐metal complexes, which undergo dissociation upon visible and ultraviolet photoexcitation.
Keigo Nagamori   +2 more
wiley   +1 more source

Revealing the deformation mechanisms and their effects on mechanical properties of Mg-3Al-1Zn alloy during repetitive continuous extrusion: Experiment and simulation

open access: yesMaterials & Design
Severe plastic deformation (SPD) is known to effectively refine microstructure and improve mechanical properties of magnesium alloys. The repetitive continuous extrusion (Re-Conform) process, compared with conventional SPD routes, enables large ...
Yang Mo   +8 more
doaj   +1 more source

In situ study of fracture behavior of ultrafine WC–Co cemented carbide

open access: yesMaterials Research Letters, 2017
The fracture behavior of ultrafine WC–Co cemented carbide was demonstrated by in situ tensile tests in a transmission electron microscope. Using two kinds of cemented carbide samples with and without previously introduced microcracks, the process from ...
Xingwei Liu   +6 more
doaj   +1 more source

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

open access: yesThe Chemical Record, EarlyView.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino   +4 more
wiley   +1 more source

Desenvolvimento de metais duros sem cobalto [PDF]

open access: yes, 1990
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnologico. Programa de Pós-Graduação em Engenharia Mecânica. Florianópolis, 1990Neste trabalho, novas ligas são desenvolvidas baseando-se no conhecimento das interações que ocorrem entre
Santos, Julio Navarro
core  

Effect of ball-milling process in combination with the addition of carbide microparticles on the microstructure and wear resistance of a Co–Cr–W alloy prepared by powder metallurgy method

open access: yesMaterials Research Express, 2021
Co–Cr–W alloys were widely used in the inlet exhaust valve of aeroengine. However, the traditional manufacturing process of Co–Cr–W alloys can not meet the demand for higher comprehensive performance, and an optimum method needs to be developed.
S Y Wang   +7 more
doaj   +1 more source

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