Results 141 to 150 of about 55,131 (281)

Enhancement of mechanical and physical properties of Cu–Ni composites by various contents of Y2O3 reinforcement

Journal of Materials Research and Technology
The increasing demand for materials possessing enhanced mechanical strength, high thermal conductivity, and excellent electrical properties has grown significantly.
Walaa Abd-Elaziem, Atef Hamada, Tarek Allam, Moustafa M. Mohammed, Mohammad Abd-El Hamid, Sally Samah, Doaa Wasfy, Moustafa A. Darwish, Y Omayma Abd Elguad El-Kady, Sally Elkatatny   +9 more
doaj   +1 more source

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

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
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, Manuela Furlani da Silva Soares, Dalton Daniel de Lima, Luiz Felipe Valandro, Marília Pivetta Rippe, Natália de Freitas Daudt   +5 more
wiley   +1 more source

Hydrothermal Investigation of the Systems Y2O3-H2O-Na2O, Y2O3-D2O-Na2O, Y2O3-H2O, and Y2O3-H2O-NH3. The Crystal Structure of Y(OH)3. [PDF]

Acta Chemica Scandinavica, 1967
A. Nørlund Christensen, R. Grønbæk Hazell, Åke Nilsson, Jan Sandström, H. Theorell, R. Blinc, S. Paušak, L. Ehrenberg, J. Dumanović   +8 more
openaire   +1 more source

Heat Capacity Measurements and Thermodynamic Assessment of the Y2O3–Ta2O5 System

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
ABSTRACT Phase equilibria in the Y2O3–Ta2O5 system play an important role in the development of new materials for thermal barrier coating (TBC) applications, with higher thermal stability resulting in more efficient gas turbines with reduced exhaust gas emissions.
M. Löffler, D. A. de Abreu, A. Habermann, M. Lepple, O. Fabrichnaya   +4 more
wiley   +1 more source

Blue and NIR Upconversion in Tm3+/Yb3+ Co‐Doped Yttrium Pyrogermanate Phosphor for High‐Sensitivity Optical Thermometry

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
Y2Ge2O7:Tm3+/Yb3+ phosphors synthesized via solid‐state method exhibit efficient blue and NIR upconversion luminescence under 980 nm excitation, enabled by cooperative energy transfer from Yb3+ to Tm3+. The system demonstrates excellent optical thermometry performance, achieving a maximum absolute sensitivity of 156.42 × 10−2 K−1 and relative ...
Basina Veera Naveen Kumar, Lucas J. B. Erasmus, Robin E. Kroon   +2 more
wiley   +1 more source

Hot-pressed silicon nitride with various lanthanide oxides as sintering additives [PDF]

The effects of addition of various lanthanide oxides and their mixture with Y2O3 on the sintering of Si3N4 were investigated. The addition of simple and mixed lanthanide oxides promoted the densification of Si3N4 in hot-pressing at 1800 C under 300-400kg/
Toibana, Y., Ueno, K.
core   +1 more source

Color stability of precolored and extrinsically colored monolithic multilayered polychromatic zirconia: Effects of surface finishing and aging

Journal of Prosthodontics, Volume 35, Issue 2, Page 169-175, February 2026.
Abstract Purpose To explore the impact of zirconia types, coloring methods, and surface finishing on the color stability of monolithic multilayered polychromatic zirconia after artificial aging, including thermocycling and simulated toothbrushing. Materials and Methods Eighty square‐shaped zirconia samples were divided into 2 types (M3Y‐TZP and M6Y‐PSZ)
Feras M. Abounassif, Amal Alfaraj, Thuraya Gadah, Chao‐Chieh Yang, Tien‐Min G. Chu, Wei‐Shao Lin   +5 more
wiley   +1 more source

Effects of oxide additions and temperature on sinterability of milled silicon nitride [PDF]

Specimens of milled alpha-Si3N4 with 0 to 5.07 equivalent percent of oxide additions were pressureless sintered at 1650 to 1820 C for 4 hours in nitrogen while covered with powdered Si3N4 + SiO2.
Arias, A.
core   +1 more source

New evidence on the formation conditions of the Libyan Desert Glass (Western Egypt): Clues from a dendritic zircon inclusion

Meteoritics &Planetary Science, Volume 61, Issue 2, Page 272-284, February 2026.
Abstract Libyan Desert Glass (LDG) is an ~29 million years old, silica‐rich glass found in Western Egypt. Whether this glass formed in an impact cratering context associated with the hypervelocity collision of a cometary/asteroidal body or radiative heating during an airburst is debated. Determination of the formation temperatures and pressures of rare
Niccolò Magnani, Enrico Mugnaioli, Sofia Lorenzon, Lidia Pittarello, Tatiana E. Gorelik, Matteo Masotta, Luigi Folco   +6 more
wiley   +1 more source

Development of a Four‐Language Questionnaire to Investigate Environmental Risk Factors for the Development of Canine Atopic Dermatitis and to Monitor Disease Course and Progression

Veterinary Dermatology, Volume 37, Issue 1, Page 34-44, February 2026.
Background: The chronic and multifactorial character of canine atopic dermatitis (cAD) often leads to poor disease control and treatment dissatisfaction. Environmental factors are likely to contribute to the disease development and may play a more important role than assumed previously.
Patricia Clara‐Maria Rhodius, Nina Fischer, Ana Rostaher, Franco Martini, Edwin Chapman, Sabrina Audergon, Stefan Hobi, Georg Lehner, Sylvie Wilhelm, Noëmi van Oordt, Claude Favrot, Malwina Kowalska   +11 more
wiley   +1 more source