Results 71 to 80 of about 28,015 (304)

Large Area High‐Performance Thin Film Solid Oxide Fuel Cell with Nanoscale Anode Functional Layer by Scalable Reactive Sputtering

Advanced Science, EarlyView.
The high‐power density (1.33 W cm−2 at 650 °C) thin film solid oxide fuel cells (TF‐SOFCs) with nanoscale anode functional layer (n‐AFL) by high‐speed (>2 µm h−1) reactive magnetron sputtering process is successfully demonstrated. The large‐area (16 cm2) TF‐SOFCs with n‐AFL exhibited a power output of 19.36 W at 650 °C, which is the highest performance
Kyoungjae Ju, Seongkook Oh, Jong Hyuk Lee, Hyong June Kim, Hyunmin Kim, Sung Eun Jo, Juhwan Lee, Byung Chan Yang, Jisung Yoon, Dong Won Shin, Wanwoo Park, Ji‐Won Son, Young‐Beom Kim, Sungeun Yang, Jihwan An   +14 more
wiley   +1 more source

THERMAL SHOCK BEHAVIOR OF MIXED COMPOSITE TOP COAT APS TBCs

Ceramics-Silikáty, 2018
Performance of thermal barrier coatings (TBCs) with mixed composite top coat (MCC) were investigated in thermal shock conditions. To produce MCCs, firstly, the powders are mixed with the specified weight ratio, and then the prepared mixture is fed to the
A. Ashofteh, M. Mosavi Mashhadi, Amadeh A.   +2 more
doaj   +1 more source

Exchange-correlation effects in the monoclinic to tetragonal phase stabilization of Yttrium-doped ZrO2: a first-principles approach [PDF]

Phys. Rev. B 84, 214113 (2011) [7 pages], 2011
We describe, within an ab-initio approach, the stabilization of the tetragonal phase vs. the monoclinic one in Yttrium-doped Zirconia. The process is believed to be influenced from different mechanisms. Indeed we show that there is a delicate balance between the change in electrostatic and kinetic energy and exchange-correlation effects.
arxiv   +1 more source

Enhanced reliability of yttria-stabilized zirconia for dental applications [PDF]

Acta Biomaterialia, 2015
An increasing number of dental applications based on yttria-stabilized zirconia (3 Y-TZP) have been developed in recent years as a result of the advances and versatility of dry-processing and soft machining at the pre-sintered state. Nonetheless, the long-term surface stability of these materials in humid environment is still a matter of concern and ...
Camposilvan, Erik, García Marro, Fernando, Mestra Rodríguez, Álvaro Miguel, Anglada Gomila, Marcos Juan   +3 more
openaire   +5 more sources

Atypical Hydrogen Bond Interaction Enables Anion‐Rich Solvation Structure in Polymer Electrolytes for High‐Voltage Flexible Lithium Metal Batteries

Advanced Science, EarlyView.
A high‐voltage, Li‐metal‐compatible, and highly conductive polymer electrolyte is reported by integrating a low‐solvating fluorinated plasticizer. Strong atypical hydrogen bonds formed between the plasticizer and polymer chains promote the establishment of anion‐rich solvation structure, effectively stabilizing electrolyte‐electrode interphase at the ...
Shujing Wen, Junhua Zhou, Guangzhao Zhang, Qingrong Wang, Chao Luo, Ruo Wang, Pengxian Li, Chaoyang Wang, Xiaoxiong Xu, Yonghong Deng, Jian Chang, Zijian Zheng   +11 more
wiley   +1 more source

Martensitic relief observation by atomic force microscopy in yttria stabilized zirconia [PDF]

Journal of the American Ceramic Society, 86(12), 2225-2227 (2003), 2017
The tetragonal to monoclinic (t-m) phase transformation of zirconia has been the object of extensive investigations of the last twenty years, and is now recognised as being of martensitic nature. However, martensitic transformation has only been observed by transmission electron microscopy or indirect methods.
arxiv   +1 more source

Detection and Quantification of Over‐Humidification in Polymer Electrolyte Fuel Cells: Insights into Simulation, Imaging, and Sensors

Advanced Energy and Sustainability Research, EarlyView.
This review highlights advanced methods for detecting and managing over‐humidification in polymer electrolyte fuel cells (PEFCs), emphasizing innovative sensors, simulation techniques, and imaging methods. By addressing the impact of water management on fuel‐cell performance and durability, this study outlines practical and sustainable solutions for ...
Maximilian Käfer, Viktor Hacker, Merit Bodner   +2 more
wiley   +1 more source

Mechanical properties and low temperature degradation of 1.5Y-1.5Nd-TZP-alumina composites produced by intensive co-milling

Open Ceramics, 2021
In this study toughness of alumina toughened zirconia (ATZ) was improved by co-stabilization by shifting from co-precipitated yttria stabilized zirconia powder to yttria neodymia co-stabilized starting powders in which the stabilizers were introduced by ...
Bettina Osswald, Andrea Gommeringer, Frank Kern   +2 more
doaj  

Muon Spin Relaxation Measurements on Zirconia Samples [PDF]

arXiv, 2005
Although of primary importance in the mechanistic understanding of Zircaloy hydriding, practically nothing is known on the transport properties of hydrogen in zirconia. In this frame the muon, which can be considered as a light hydrogen nuclide, can be used as an analogue and its behavior in zirconia and Zircaloy corrosion layer may provide more ...
arxiv  

Restoration of human tooth enamel

BMEMat, EarlyView.
Human tooth enamel has remarkable properties but lacks self‐repair ability. Existing restorative materials cannot fully replicate enamel's microstructure and function, resulting in low restorative efficiency. This review summarizes the formation process and characteristics of enamel, and current restorative materials and future research directions are ...
Hanlin Liu, Bo Li, Mingrui Gao, Yangbei Li, Xiuyi Yang, Fengshi Li, Zhi Cai, Yi Liu, Shaojia Liu, Hewei Zhao, Lin Guo   +10 more
wiley   +1 more source