Results 81 to 90 of about 27,341 (293)

Kinetics and morphology of electrochemical vapour deposited thin zirconia/yttria layers on porous substrates [PDF]

, 1995
By means of electrochemical vapour deposition (EVD), it is possible to grow thin (0.5-5 µm), dense zirconia/yttria layers on porous ceramic substrates.
Brinkman, H.W., Burggraaf, A.J., Meijerink, J., Vries, K.J. de   +3 more
core   +3 more sources

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

The Effect of Glazing and Repeated Firing on Color, Translucency, and Flexural Strength of Different Types of Zirconia: An In Vitro Study

Ceramics
This study evaluated the impact of glazing and multiple firing on the flexural strength, translucency, and color stability of three types of zirconia: 3 mol% yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP), 4 mol% yttria partially stabilized ...
Ruwaida Z. Alshali, Mohamed Abdelmageed Awad, Amnah A. Assiri, Shahad A. Aljahdali, Walaa A. Babeer, Dalea M. Bukhary, Mosa M. Altassan, Lulwa E. Al-Turki   +7 more
doaj   +1 more source

Durability of zirconia thermal-barrier ceramic coatings on air-cooled turbine blades in cyclic jet engine operation [PDF]

Thermal barrier ceramic coatings of stabilized zirconia over a bond coat of Ni Cr Al Y were tested for durability on air cooled turbine rotor blades in a research turbojet engine.
Jacobs, R. E., Liebert, C. H., Morse, C. R., Stecura, S.   +3 more
core   +1 more source

Electrical and Hydrogen Reduction Enhances Kinetics in Doped Zirconia and Ceria: II. Mapping Electrode Polarization and Vacancy Condensation in YSZ

, 2017
Knowing the correlation between grain boundary mobility and oxygen potential in yttria stabilized zirconia (YSZ), we have utilized the grain size as a microstructural marker to map local oxygen potential. Abrupt oxygen potential transition is established
Chen, I-Wei, Dong, Yanhao
core   +1 more source

Roadmap Toward the Production, Storage, Transportation, and Applications of Green Hydrogen

Carbon and Hydrogen, EarlyView.
This review focuses on analyzing the critical technologies, existing bottlenecks, and prospective advancements throughout the full green hydrogen supply chain. ABSTRACT Hydrogen, as a clean and versatile energy carrier, plays a vital role in the global transition toward carbon neutrality.
Xusheng Wang, Xue Yang, Xiang Wang, Yingyan Zhao, Xi Lin, Zhigang Hu, Guangqin Li, Ruichang Xue, Xinwei Guan, Baowen Zhou, Tianyi Ma, Jianxin Zou   +11 more
wiley   +1 more source

Microscopic ion migration in solid electrolytes revealed by terahertz time-domain spectroscopy

Nature Communications, 2019
Here the authors expand the application scope of terahertz spectroscopy to the characterization of electrolyte materials. Based on the measurement of the conductivity of yttria-stabilized zirconia in the terahertz frequency range, unprecedented insight ...
Tomohide Morimoto, Masaya Nagai, Yosuke Minowa, Masaaki Ashida, Yoichiro Yokotani, Yuji Okuyama, Yukimune Kani   +6 more
doaj   +1 more source

Improving the mechanical properties of commercial feldspathic dental porcelain by addition of Alumina-Zirconia

Revista Facultad de Ingeniería Universidad de Antioquia, 2020
Dental ceramics made from Yttria stabilized tetragonal Zirconia polycrystalline (Y-TZP) with feldspathic porcelain veneers have similar mechanical and aesthetic response to natural tooth.
Juliana Gómez Tamayo, Astrid Oasis Rueda Arango, Edgar Alexader Ossa Henao   +2 more
doaj   +1 more source

Lead‐Free (K0.5Na0.5)NbO3 Unmodified Piezoceramics: A Reduction in the Energetic Budget of Solid State Synthesis and Sintering

Chemistry–Methods, EarlyView.
The temperature of the solid‐state synthesis of pure (K0.5Na0.5)NbO3 piezo‐composition is reduced by using the niobium pentoxide reactant in the mixture of reagents after attrition milling for only 3h: a majoritarian (57 wt.% of the total Nb2O5 content) orthorhombic polymorph Pbam.
Maria Dore, José F. Bartolomé, Sonia Lopez‐Esteban, Marzia Mureddu, Costantino Cau, Stefano Enzo, Álvaro García, Sebastiano Garroni, Lorena Pardo   +8 more
wiley   +1 more source

LaPrNiO4+δ Nano‐Columnar Thin Films as Oxygen Electrodes for Reversible Solid Oxide Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
LaPrNiO4+δ thin films with a tailored nano‐columnar structure are deposited and evaluated as oxygen electrodes for LT‐SOCs. The optimized microstructure enhances surface exchange and stability, enabling reversible cell operation. This work highlights the performance—stability trade‐off in nickelate thin films and their integration into full‐cell ...
Silvère Panisset, Kosova Kreka, David Jauffres, Carmen Jiménez, Albert Tarancón, Mónica Burriel   +5 more
wiley   +1 more source