Results 11 to 20 of about 21,724 (233)

A practical approach for the calculation of the activation energy of the sintering [PDF]

open access: yesScience of Sintering, 2016
Newly developed software for calculation of activation energy (Qs in the following) of sintering using the Wang and Raj model is presented. To demonstrate the practical potential of the software and to evaluate the behaviour of the Qs during the
Pouchly Vaclav, Hruby Jan, Maca Karel
doaj   +1 more source

Optical properties of new zirconia-based dental ceramics: literature review

open access: yesCerâmica, 2021
The first generation of polycrystalline zirconia-based ceramic used to produce dental prosthesis showed excellent mechanical behavior; however, its low translucency limited the indication for aesthetic monolithic restorations.
G. Pizzolatto, M. Borba
doaj   +1 more source

High temperature innovative zirconia-alumina ramming mass

open access: yesOpen Ceramics, 2023
Zirconia and high alumina ramming masses stand out as efficacious variants within the domain of unshaped refractories. In the interface between these materials, the utilization of transitional zirconia-alumina ramming mass is recommended.
Valeriy V. Martynenko   +3 more
doaj   +1 more source

Role of promoters over yttria‐zirconia supported Ni catalyst for dry reforming of methane

open access: yesEnergy Science & Engineering, 2023
Dry reforming of methane (DRM) bears great hope for the catalytic community as well as environmentalists for its potential to convert two greenhouse gases, CH4 and CO2, together into synthetic feedstock “syngas”.
Anis H. Fakeeha   +7 more
doaj   +1 more source

Machine learning potential for Ab Initio phase transitions of zirconia

open access: yesTheoretical and Applied Mechanics Letters, 2023
Zirconia has been extensively used in aerospace, military, biomedical and industrial fields due to its unusual combination of high mechanical, electrical and thermal properties.
Yuanpeng Deng   +3 more
doaj   +1 more source

The influence of cerium oxide content on the crack growth in zirconia ceramic materials for engineering applications

open access: yesResults in Materials, 2021
This article proposes a method of using cerium oxide and zirconium oxide to prepare ceramic materials for cold welding equipment in the production of lithium batteries.
Xian-Ming Liu
doaj   +1 more source

Cytotoxicity and biocompatibility of high mol% yttria containing zirconia [PDF]

open access: yesRestorative Dentistry & Endodontics, 2020
ObjectivesYttria-stabilized tetragonal phase zirconia has been used as a dental restorative material for over a decade. While it is still the strongest and toughest ceramic, its translucency remains as a significant drawback.
Gulsan Ara Sathi Kazi, Ryo Yamagiwa
doaj   +1 more source

Combined Quantitative X-ray Diffraction, Scanning Electron Microscopy, and Transmission Electron Microscopy Investigations of Crystal Evolution in CaO–Al2O3–SiO2–TiO2–ZrO2–Nd2O3–Na2O System [PDF]

open access: yes, 2017
Glass-ceramics, with a specific crystalline phase assembly, can combine the advantages of glass and ceramic and avoid their disadvantages. In this study, both cubic-zirconia and zirconolite-based glass-ceramics were obtained by the crystallization of ...
Caurant D.   +12 more
core   +2 more sources

Wear Behavior of Different Generations of Zirconia: Present Literature

open access: yesInternational Journal of Dentistry, 2022
Objective. The wear behavior of the novel zirconia generation is less well understood and may be affected by compositional modifications compared to the conventional zirconia. Materials and Methods.
Kuljirarnat Jitwirachot   +3 more
doaj   +1 more source

Hydrothermal Synthesis: Low−Temperature Subcritical Water for Ceria−Zirconia Mixed Oxides Preparation

open access: yesIndonesian Journal of Chemistry, 2021
A low-temperature hydrothermal synthesis technique was employed as a medium to produce ceria−zirconia mixed oxides particles at temperatures of 200–300 °C and pressure of 10 MPa in a batch process.
Siti Machmudah   +5 more
doaj   +1 more source

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