Results 151 to 160 of about 19,472 (303)

Multifaceted Roles of Tantalum in Promoting the Thermoelectric Performance of Mg3(Sb,Bi)2 Based Materials

open access: yesAdvanced Science, EarlyView.
A multifunctional tantalum incorporation strategy enables simultaneous tuning of carrier concentration, mitigation of grain‐boundary scattering, and enhanced phonon scattering in Mg3(Sb,Bi)2. These synergistic effects markedly improve carrier mobility and suppress lattice thermal conductivity, yielding both high material zT and high module conversion ...
Guangmeng You   +9 more
wiley   +1 more source

Production of rutile from ilmenite by room temperature ball-milling-induced sulphurisation reaction

open access: yes, 1996
Rutile (TiO 2 ) was produced at room temperature from mineral ilmenite (FeTiO 3 ) by high energy ball milling of an ilmenite-sulphur mixture. A mechanochemical reaction, sulphurisation of iron in ilmenite producing TiO 2 and FeS 2 , occurred during the ...
Ying (Ian) Chen (13074204)   +3 more
core  

Beyond Percolation: Graphene‐Enabled Network Reinforcement Enhances Thermal Transport in Paraffin Phase‐Change Composites

open access: yesAdvanced Science, EarlyView.
Expanded‐graphite/graphene‐nanoplatelet hybrids deliver a near‐order‐of‐magnitude thermal‐conductivity enhancement in paraffin phase‐change materials. A microCT‐informed 3D modeling framework resolves the percolating EG backbone and captures sub‐voxel GNP enrichment, quantitatively linking microstructure to heat flow and revealing a graphene‐enabled ...
Thomas Hoke   +4 more
wiley   +1 more source

Lattice Distortion‐Driven Metal Exsolution in Perovskite Oxides

open access: yesAdvanced Science, EarlyView.
This study elucidates the mechanism of lattice distortion‐driven exsolution through a combination of computational simulations and experimental approaches. Lattice distortion facilitates the formation of oxygen vacancies and subsequent metal segregation, thereby enhancing the exsolution behavior.
Yo Han Kim   +5 more
wiley   +1 more source

Dynamically Modified Flexible Zn Powder Anodes with Stable Performance at High Rate and High Zn Utilization

open access: yesAdvanced Science, EarlyView.
A dynamically shape‐variant liquid metal‐based network is integrated into Zn powder electrode, where intrinsic fluidity and structural adaptability of the liquid metal‐based network enable effective mitigation of dendritic growth, alleviation of stress accumulation, and prevention of Zn loss during Zn plating‐stripping processes.
Yuxuan Wang   +9 more
wiley   +1 more source

Al─N Co‐Doped LLZO Solid Electrolytes via One‐Step Sintering: Toward High Ionic Conductivity

open access: yesAdvanced Science, EarlyView.
Al–N co‐doped LLZO solid electrolytes were prepared via a one‐step sintering process, which not only simplifies fabrication process, but also diminishes Li loss during high‐temperature sintering in conventional fabrication process. The Al–N co‐doped LLZO achieves a high ionic conductivity of 2.19 × 10−3 S cm−1 because the co‐doping reduces the energy ...
Hao Zhang   +9 more
wiley   +1 more source

Structural, Magnetic, and Electron Spin Resonance Properties of Nickel Nanoferrites Synthesized by High-Energy Ball Milling. [PDF]

open access: yesChemistryOpen
Dlamini S   +11 more
europepmc   +1 more source

Application of high energy ball milling in mineral materials: Extraction of TiO2 from mineral FeTiO3

open access: yes, 1997
A systematic study of extraction of rutile (TiO 2 ) from ilmenite (FeTiO 3 ) by using a high energy ball milling technique has been carried out. It was found that rutile can be obtained by either ball milling of ilmenite with elemental sulphur or other ...
Ying (Ian) Chen (13074204)   +1 more
core  

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