Results 131 to 140 of about 35,130 (246)
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.
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Large mammal recovery in the wake of human population decline
Journal of Applied Ecology, Volume 63, Issue 5, May 2026.Human depopulation, particularly in rural areas, has contributed to the recovery of some large mammal populations. While recovery is generally good news for conservation, it can also lead to human‐wildlife conflict. We present several avenues to maximize coexistence in the face of further rural depopulation in other places. Read the free Plain Language
Alex J. Jensen +4 more
wiley +1 more source
International Journal of Applied Linguistics, Volume 36, Issue 2, Page 1194-1207, May 2026.ABSTRACT Spurred by the advancement of educational technology, more language instruction has been offered in online environments. Consequently, teaching practices have had to adapt to digital platforms. Accordingly, teachers’ provision of synchronous written corrective feedback (SWCF) on digital texts has received increasing attention.
Sanghee Kang, YouJin Kim, Minkyung Kim
wiley +1 more source
Liquidus of MgO and MgAl2O4 in the CaO‐MgO‐Al2O3 System at 1550 and 1600°C
Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.ABSTRACT In this study, the liquidus of MgO and MgAl2O4 spinel phase in the CaO‐MgO‐Al2O3 system at 1550 and 1600°C were experimentally investigated using a classical quenching method. In order to examine the liquidus composition accurately, the equilibration was carried out using four different ways using the combinations of Pt and ceramic (MgO and ...
Dahee Gwak, Jaesung Lee, In‐Ho Jung
wiley +1 more source
Fluorescent MIL‐53(Al) Enhanced 3D Printing of Si3N4 Ceramics via Vat Photopolymerization
Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.ABSTRACT Vat photopolymerization (VPP) has recently been applied to fabricate silicon nitride (Si3N4) ceramics. To overcome limitations in Si3N4 slurry curing performance, a multi‐functional modification strategy utilizing the metal‐organic framework MIL‐53(Al) was proposed.
Jia‐Min Wu +9 more
wiley +1 more source
Pressureless sintered Sialons with low amounts of sintering aid [PDF]
Two Beta prime - Sialons of composition Si2.6Al0.393y0.007O0.4N3.6 and Si2.6Al0.384Y0.014O0.4N3.6 were pressureless sintered from mixtures of Y2O3 and separately milled Beta -Si3N4, AlN, and SiO2.
Arias, A.
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Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
Behavior of Cu-Y2O3 and CuCrZr-Y2O3 composites before and after irradiation
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2023 Martins, R. +8 more
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Performance of thermal barrier coatings in high heat flux environments [PDF]
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kW plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across the thickness of the 0.038 cm ceramic layer was about ...
Berndt, C. C., Miller, R. A.
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Optimization of the NiCrAl-Y/ZrO-Y2O3 thermal barrier system [PDF]
The effects of bond and thermal barrier coating compositions, thicknesses, and densities on air plasma spray deposited Ni-Cr-Al-Y/ZrO2-Y2O3 life were evaluated in cyclic furnace oxidation tests at temperatures from 1110 to 1220 C.
Stecura, S.
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