Results 101 to 110 of about 27,341 (293)

Multifaceted Behavior and Functional Versatility of Ferritic Stainless Steels, Part I: Applications and Processing, a Review

open access: yessteel research international, EarlyView.
This review investigates the processing‐microstructure‐property relationships in ferritic stainless steels (FSSs). It highlights advances in deformation behavior, heat treatments, surface modifications, and alloying effects. Theoretical models, including Johnson‐Mehl‐Avrami‐Kolmogorov, Arrhenius, nucleation theory, and diffusion theories, are discussed
Shahab Bazri   +4 more
wiley   +1 more source

Ten‐Year Results of a Prospective Study on One‐Piece Zirconia Oral Implants for Single‐Tooth Reconstruction

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives The intention of this 10‐year prospective cohort investigation was to clinically and radiographically investigate the outcomes of a one‐piece zirconia implant system for single‐tooth replacement. Materials and Methods A total of 65 patients received 66 single‐tooth implants restored with all‐ceramic crowns.
Ralf‐Joachim Kohal   +6 more
wiley   +1 more source

Ultrafast high‐temperature sintering of dental grade 4YSZ ceramics: Effects on microstructure and flexural strength

open access: yesInternational Journal of Applied Ceramic Technology, EarlyView.
Abstract This study compares the effects of ultrafast high‐temperature sintering (UHS) and conventional sintering on the microstructural and mechanical properties of 4 mol% yttria‐stabilized zirconia, a ceramic widely used in dental restorations for its high strength, biocompatibility, and aesthetic qualities.
Gabriela Carrão Aragonez   +5 more
wiley   +1 more source

Emittance and absorptance of NASA ceramic thermal barrier coating system [PDF]

open access: yes
Spectral emittance measurements were made on a two-layer ceramic thermal barrier coating system consisting of a metal substrate, a NiCrAly bond coating and a yttria-stabilized zirconia ceramic coating.
Liebert, C. H.
core   +1 more source

Fabrication of Highly Porous Yttria‐Stabilized Zirconia by Acid Leaching Nickel from a Nickel‐Yttria‐Stabilized Zirconia Cermet

open access: yesJournal of the American Ceramic Society, 2002
Porous Y2O3‐stabilized ZrO2 (YSZ) samples were synthesized by preparing NiO/YSZ composites by tape casting and calcining at 1800 K, reducing the NiO to nickel in H2 at 973 K, and finally leaching the nickel out of the structure with 2.2M HNO3 at 353 K. Porous YSZ was prepared from NiO/YSZ composites containing 0, 20, 40, and 50 wt% NiO.
KIM H   +4 more
openaire   +5 more sources

Interdiffusion kinetics of yttria and alumina

open access: yesJournal of the American Ceramic Society, EarlyView.
Abstract The interdiffusion kinetics of yttria‐alumina diffusion couples produced by spark plasma sintering (SPS) were investigated at 1350°C, 1425°C, and 1500°C. The SPS diffusion couples were heat‐treated in air at their sintering temperatures for 0, 24, and 96 h.
C. S. Witharamage   +2 more
wiley   +1 more source

Impact Resistance of Yttria- and Ceria-Doped Zirconia Ceramics in Relation to Their Tetragonal-to-Monoclinic Transformation Ability

open access: yesCeramics
In this work, the impact resistance of three zirconia ceramics was investigated: two yttria-stabilized zirconia (3Y-TZP and 1.5Y-TZP) and a ceria-stabilized-zirconia (Ce-TZP) composite.
Mohamed Imariouane   +4 more
doaj   +1 more source

Ceramic thermal-barrier coatings for cooled turbines [PDF]

open access: yes
Coating systems consisting of a plasma sprayed layer of zirconia stabilized with either yttria, magnesia or calcia over a thin alloy bond coat have been developed, their potential was analyzed and their durability and benefits evaluated in a turbojet ...
Liebert, C. H., Stepka, F. S.
core   +1 more source

Fracture behavior of grain boundaries in (U,Pu)O2 fuels: An atomistic study

open access: yesJournal of the American Ceramic Society, EarlyView.
Abstract Classical atomistic simulations using the Cooper–Rushston–Grimes potential were carried out to observe the stability and the fracture properties of six special grain boundaries in (U1−x${\rm U}_{1-x}$, Pux)O2${\rm Pu}_x){\rm O}_2$. The formation energy decreases as a function of Pu content, while the cleavage energy increases.
C. Chil   +3 more
wiley   +1 more source

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