Results 101 to 110 of about 21,625,103 (249)

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

open access: yesAdvanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner   +7 more
wiley   +1 more source

Residence time distribution

open access: yes, 2017
Tema ovog završnog rada je raspodjela vremena zadržavanja koja je određivana u različitim cijevima koje su simulirale cijevne reaktore. Eksperiment je rađen u tri cijevi: praznoj cijevi, cijevi punjenoj staklenim kuglicama i spiralnoj cijevi koja je duža
Tonković, Juraj
core   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

open access: yesAdvanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo   +15 more
wiley   +1 more source

Development of a Cold Wall Reactor System for the Low‐Pressure Chemical Vapor Deposition of BN on SiC Fiber Tow

open access: yesAdvanced Engineering Materials, EarlyView.
A cold wall reactor is developed to coat a SiC fiber tow with BN by low pressure chemical vapor deposition. The precursor gas is triethylamine borane mixed with ammonia. The heating process induces a temperature gradient, with the temperature decreasing from the core to the surface of the multifilament tow.
Pierre Fenetaud, Sylvain Jacques
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Residence time distribution of solid particles in a CSTR

open access: yes, 2002
When mixing in a tank is insufficient solid particles are known to form a concentration gradient along the height. The one-dimensional sedimentation dispersion model provides a relationship between mixing parameters and the solids concentration ...
Murphy, Terry, 1955-
core  

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

open access: yesAdvanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster   +11 more
wiley   +1 more source

Ohio Governor's Residence and Heritage Garden

open access: yes
The mission of the Ohio Governor's Residence and Heritage Garden is to develop the Residence as a center of culture and education for Ohio, by documenting the history of the Residence and grounds; by the focused collecting and preserving of Ohio native ...

core   +1 more source

Heterogeneous photochemical reaction enabled by an ultrasonic microreactor.

open access: yesReact Chem Eng, 2023
Udepurkar AP   +3 more
europepmc   +1 more source

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