Results 41 to 50 of about 131,273 (269)

Ru Single Atoms Anchored on Oxygen‐Vacancy‐Rich ZrO2‐x/C for Synergistically Enhanced Hydrogen Oxidation

Advanced Science
The hydrogen oxidation reaction (HOR) in alkaline media is pivotal for the advancement of anion exchange membrane fuel cells (AEMFCs), and the development of single‐atom catalysts offers a promising solution for creating cost‐effective, highly efficient ...
Xiaojuan Zhang, Chunchang Wang, Wenjun Cao, Qingqing Zhu, Chao Cheng, Jun Zheng, Haijuan Zhang, Youming Guo, Shouguo Huang, Yi Yu, Binghui Ge, Dongsheng Song, Yameng Fan, Zhenxiang Cheng   +13 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

Enhanced humidity sensing properties of Ta2O5 and ITO doped rutile-TiO2 porous ceramics

Scientific Reports
In this study, we investigated the humidity sensing properties of TiO2-based ceramics doped with tantalum pentoxide (Ta2O5) and indium tin oxide (ITO).
Jurimart Wongsricha, Kaniknun Sreejivungsa, Noppakorn Thanamoon, Viyada Harnchana, Pornjuk Srepusharawoot, Nutthakritta Phromviyo, Wirat Jarernboon, Prasit Thongbai   +7 more
doaj   +1 more source

First-order phase transition and unexpected rigid rotation mode in hybrid improper ferroelectric (La, Al) co-substituted Ca3Ti2O7 ceramics

Journal of Materiomics, 2019
Ca3Ti2O7 with Ruddlesden-Popper structure exhibits the largest polarization among the known hybrid improper ferroelectrics. However, the high Curie temperature impedes the thorough study of phase transition through dielectric characterization.
Z.Z. Hu, J.J. Lu, B.H. Chen, T.T. Gao, X.Q. Liu, W. Wen, X.M. Chen   +6 more
doaj   +1 more source

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

On dielectric membranes [PDF]

Journal of High Energy Physics, 2009
By placing a collection of membranes in 11 dimensional background supergravity six form field and considering the non-linear action of multiple membranes we obtain the potential for transverse scalar fields of membranes and study some possible vacuum configurations.
openaire   +2 more sources

Mechanisms of enhanced performance in Zr4+/Ta5+ codoped rutile–TiO2 ceramics via broadband dielectric spectroscopy

Scientific Reports
Aliovalent dopant codoped rutile–TiO2 materials have garnered attention due to their excellent performance properties, characterized by low loss tangent (tanδ), high dielectric permittivity (ε′), and stable ε′ over a broad temperature range.
Yasumin Mingmuang, Narong Chanlek, Masaki Takesada, Viyada Harnchana, Wirat Jarernboon, Pairot Moontragoon, Pornjuk Srepusharawoot, Ekaphan Swatsitang, Prasit Thongbai   +8 more
doaj   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

Advanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb, S. Rahman Pejman, Alexander Jakimowicz, Jonathan P. Singer   +3 more
wiley   +1 more source

Computational and experimental investigations of the giant dielectric property of Na1/2Y1/2Cu3Ti4O12 ceramics

Scientific Reports, 2023
A modified sol-gel method was used to successfully produce Na1/2Y1/2Cu3Ti4O12 ceramics with high dielectric permittivity. The dielectric permittivity of Na1/2Y1/2Cu3Ti4O12 ceramics reaches values larger than 104 at room temperature and 1 kHz.
Jakkree Boonlakhorn, Punpatsorn Suksangrat, Weerachai Sarakorn, Sriprajak Krongsuk, Prasit Thongbai, Pornjuk Srepusharawoot   +5 more
doaj   +1 more source

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source