Results 111 to 120 of about 13,383 (265)
Materials & Design, 2018 High-quality reflective screens constitute an important part of multi-layer insulation materials. However, the metal foils currently used as thermal reflective screens are easily oxidized in an oxidizing environment. Nanoscale yttrium oxide exhibits high
Yongshuai Xie +5 more
doaj +1 more source
Improving fatigue resistance of translucent 4Y‐PSZ zirconia through glass gradation
European Journal of Oral Sciences, EarlyView.Abstract To evaluate the effect of graded glass infiltration on the fatigue behavior and mechanical reliability of translucent 4Y‐PSZ zirconia before and after hydrothermal aging, disc‐shaped specimens were fabricated by uniaxial pressing and divided into control and glass‐graded groups (n = 36/group).
Felipe Machado Souza +12 more
wiley +1 more source
Japanese Women's Attitudes Toward Learning Languages Other Than English in the Era of Global English
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study on female Japanese learners of the Korean language is situated in the centuries‐long anti‐Korean sentiments in Japan, the global popularity of the Korean Wave, particularly among women, and the essentialized image of socially marginalized young Japanese women who study English with romantic desires for Western men.
Yoko Kobayashi
wiley +1 more source
Luminescence Properties of Nanocrystalline Y2O3:Eu
Advanced Materials, 2001 Y2O2:Eu nanocrystals in the size range 70-100 nm were fabricated. The crystals show a photoluminescence efficiency 10-20% higher than commercial bulk material. It was found that under electron excitation, the nanocrystalline material is 50% more efficient than the bulk at 1 kV accelerating voltage.
Wakefield, G +3 more
openaire +2 more sources
International Journal of Applied Linguistics, EarlyView.ABSTRACT Teacher well‐being has garnered increasing attention in language education, as it plays a vital role in shaping both their professional lives and student learning. Although its importance is recognised, further research is still needed to gain a more comprehensive understanding of language teachers' well‐being.
Takeshi Onodera
wiley +1 more source
Translucency of 3D‐Printed 3Y‐ and 5Y‐Doped Zirconia
Journal of Esthetic and Restorative Dentistry, EarlyView.ABSTRACT Objectives To evaluate and compare the translucency of 3D‐printed zirconia materials: 3Y tetragonal zirconia polycrystal (3Y‐TZP) and 5Y partially stabilized zirconia (5Y‐PSZ). Material and Methods 3D‐printed 5Y‐PSZ and 3Y‐TZP materials fabricated using digital light processing (DLP) were investigated.
Sebastian Hetzler +4 more
wiley +1 more source
Journal of Esthetic and Restorative Dentistry, EarlyView.ABSTRACT Objective This in vitro study aimed to evaluate the effects of substructure color and restoration thickness on the final color of shade‐gradient ultra‐translucent zirconia ceramics. Material and Methods A total of 180 flat‐shaped ultra‐translucent zirconia specimens (5Y‐PSZ) with thicknesses of 0.4, 0.6, and 0.8 mm (n = 60) were fabricated and
Elif Yılmaz Biçer +2 more
wiley +1 more source
Journal of Esthetic and Restorative Dentistry, EarlyView.ABSTRACT Objective To compare the surface roughness, color stability, and translucency of zirconia produced by additive manufacturing (AM) and subtractive manufacturing (SM) after exposure to cigarette smoking. Materials and Methods A total of 60 disc‐shaped specimens were fabricated from 2 methods: AM (INNI Cera BCM W500/1000) and SM (VITA YZ T).
Bengisu Mahmutluoglu +2 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 +8 more
openaire +1 more source
PHASE STABILITY IN MILLED Y2O3 AND W-Y2O3.
, 2017 Properties of milling-induced high-pressure B phase in Y2O3 and W-Y2O3 powders were studied by differential thermal analysis and X-Ray diffraction.
Illková, Ksenia
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