Thermally stable red-emitting oxide ceramics for laser lighting.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced materials"
DOI: 10.1002/adma.202301837
Abstract: Laser-driven phosphor-converted white light sources are highly desirable for their unprecedented energy efficiency and lighting quality. However, important challenges remain due to a lack of efficient and stable red-emitting materials. Here we explore Eu2+ -activated… read more here.
Keywords: red emitting; oxide ceramics; emitting oxide; thermally stable ... See more keywords
Surface Protonic Conduction on Oxide Ceramics: Mechanism, Materials, and Method for Characterization
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.202201764
Abstract: Surface protonic conduction originates from a common phenomenon of surface adsorption of water, which occurs almost everywhere when the temperature and humidity are properly controlled. Different from the volume transport of protons inside the oxide… read more here.
Keywords: surface protonic; surface; oxide ceramics; temperature ... See more keywords
Modeling of oxygen exchange of oxide ceramics: effect of inert particles at the surface
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Solid State Electrochemistry"
DOI: 10.1007/s10008-019-04200-0
Abstract: The impact of inert particles located at the surface of mixed ionically/electronically conducting oxide ceramics on the oxygen exchange properties has been studied by numerical modeling of the underlying transport processes. In particular, the phenomenological… read more here.
Keywords: relaxation; surface; exchange; oxide ceramics ... See more keywords
Temperature and energy partition for grinding of mixed oxide ceramics
Sign Up to like & getrecommendations! Published in 2017 at "Production Engineering"
DOI: 10.1007/s11740-017-0757-0
Abstract: Mixed oxide ceramics show high potential for widespread utilization due to the transformation toughening effect of these ceramics. During grinding, the stress-induced transformation from the tetragonal to the monoclinic phase of ZrO2 particles ensures a… read more here.
Keywords: mixed oxide; temperature energy; grinding mixed; energy partition ... See more keywords
Synthesis of Nb2O5 and Ta2O5 nanopowders by means of an endo-templating method
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2017.09.025
Abstract: Abstract Finding efficient templates for the nanostructuring of materials is a key point. Here, the niobium (V) - and tantalum (V) oxide ceramics nanopowders have been synthesized by a hard-templating approach by using the tricalcium… read more here.
Keywords: ta2o5 nanopowders; means endo; nanopowders means; synthesis nb2o5 ... See more keywords
Predictive modelling for contact angle of liquid metals and oxide ceramics by comparing Gaussian process regression with other machine learning methods
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.09.146
Abstract: Abstract Wettability has a major effect on the performance of the corrosion of ceramic refractory under normal operating conditions. Contact angle measurement is available to characterize the wettability of liquid metals and oxide ceramics. Therefore,… read more here.
Keywords: angle; contact angle; metals oxide; liquid metals ... See more keywords
Direct laser additive manufacturing of high performance oxide ceramics: A state-of-the-art review
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2021.05.035
Abstract: Abstract The implementation of additive manufacturing for ceramics is more challenging than for other material classes, since most of the shaping methods require polymer binder. Laser additive manufacturing (LAM) could offer a new binder-free consolidation… read more here.
Keywords: oxide ceramics; performance oxide; additive manufacturing; high performance ... See more keywords
Electrical conductivity increase by order of magnitude through controlling sintering to tune hierarchical structure of oxide ceramics
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Solid State Chemistry"
DOI: 10.1016/j.jssc.2020.121831
Abstract: Abstract Perovskite calcium manganate CaMnO3-δ is representative of an essential group of semiconductors with unique physical phenomena including colossal magnetoresistance and thermoelectric properties. For the large-scale applications that require the utilization of oxide ceramics, the… read more here.
Keywords: order magnitude; hierarchical structure; conductivity; oxide ceramics ... See more keywords
Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
Sign Up to like & getrecommendations! Published in 2023 at "Science Advances"
DOI: 10.1126/sciadv.add8328
Abstract: Boosting dielectric permittivity representing electrical polarizability of dielectric materials has been considered a keystone for achieving scientific breakthroughs as well as technological advances in various multifunctional devices. Here, we demonstrate sizable enhancements of low-frequency dielectric… read more here.
Keywords: dielectric permittivity; hydrogenation; oxide ceramics; ultrahigh dielectric ... See more keywords
Magneto-optical characteristics of holmium oxide (Ho 2 O 3 ) ceramics
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials Express"
DOI: 10.1364/ome.7.000827
Abstract: Transparent Ho2O3 ceramics are fabricated and their magneto-optical characteristics are reported for the first time, to the best of our knowledge. The value of the Verdet constant was measured in the 560–1064 nm wavelength range,… read more here.
Keywords: characteristics holmium; magneto optical; oxide ceramics; holmium oxide ... See more keywords
Preparation and Thermophysical Properties of New Multi-Component Entropy-Stabilized Oxide Ceramics for Thermal Barrier Coatings
Sign Up to like & getrecommendations! Published in 2023 at "Coatings"
DOI: 10.3390/coatings13050937
Abstract: Five kinds of multi-component entropy-stabilized oxide ceramics were prepared by a solid-state reaction method for thermal barrier coatings, namely La0.125Y0.125Yb0.125Gd0.125Zr0.5O1.75 (LaYYbGdZr), Y0.125Yb0.125Gd0.125Ta0.125Zr0.5O1.875 (YYbGdTaZr), La0.1Y0.1Yb0.1Gd0.1Ta0.1Zr0.5O1.85 (LaYYbGdTaZr), Y0.125Yb0.125Gd0.125Ta0.125Hf0.25Zr0.25O1.875 (YYbGdTaHfZr), and La0.1Y0.1Yb0.1Gd0.1Ta0.1Hf0.25Zr0.25O1.85 (LaYYbGdTaHfZr). Many properties of the materials… read more here.
Keywords: multi component; entropy stabilized; component entropy; oxide ceramics ... See more keywords