Results 61 to 70 of about 12,197,228 (152)

Preparation and failure mechanism of LaZrCeO thermal barrier coating by EB-PVD

open access: yesCailiao gongcheng
Thermal barrier coatings, consisting of a metal bonding layer, ceramic surface layer, and thermal growth oxide, are widely utilized in turbine blades for aero engines as protective coatings.
LUO Yuqing   +5 more
doaj   +1 more source

Ferroelectric and dielectric properties of sub-10 nm BaTiO3 nanoparticles

open access: yesJournal of Asian Ceramic Societies
BaTiO3 has been investigated nearly several decades due to its excellent ferroelectric and dielectric properties. However, the property evolution of BaTiO3 with a particle size of sub-10 nm is still unclear because of the difficulty during the ...
Fei Hao   +6 more
doaj   +1 more source

Electrical properties and luminescence properties of 0.96(K0.48Na0.52)(Nb0.95Sb0.05)–0.04Bi0.5(Na0.82K0.18)0.5ZrO3-xSm lead-free ceramics

open access: yesJournal of Advanced Ceramics, 2020
In this paper, Sm-doped 0.96(K0.48Na0.52)(Nb0.95Sb0.05)–0.04Bi0.5(Na0.82K0.18)0.5ZrO3 (abbreviated as KNSN–0.04BNKZ) lead-free piezoelectric ceramics were prepared by conventional solid-state sintering method and the effects of Sm2O3 on the phase ...
Wei Li   +8 more
doaj   +1 more source

"Structure and ice friction properties of thermoplastic polyurethane/ natural rubber composites"

open access: yesHecheng xiangjiao gongye
The aim was to improve ice friction property of thermoplastic polyurethane (TPU) elastomer by blending natural rubber (NR) with TPU. The effects of ice surface temperature, contact area, material surface wettability, and NR phase size on the ice friction
ZHANG Yu, HUANG Yi-hao, WU You-ping
doaj   +1 more source

Two-phase flow experimental studies in micro-models [PDF]

open access: yes, 2013
The aim of this research project was to put more physics into theories of two-phase flow. The significance of including interfacial area as a separate variable in two-phase flow and transport models was investigated.
Physically-based theory of two-phase flow in porous media including fluid-fluid interfacial area   +2 more
core  

Current status and prospects in machine learning-driven design for refractory high-entropy alloys

open access: yesCailiao gongcheng
Due to excellent comprehensive properties such as high strength, high hardness, and excellent high-temperature oxidation resistance, the refractory high-entropy alloys have broad application prospects and research value in the fields of aerospace and ...
GAO Tianchuang   +3 more
doaj   +1 more source

Signals of the QCD Phase Transition in the Heavens [PDF]

open access: yes, 2007
The modern phase diagram of strongly interacting matter reveals a rich structure at high-densities due to phase transitions related to the chiral symmetry of quantum chromodynamics (QCD) and the phenomenon of color superconductivity.
Schaffner-Bielich, Jürgen
core  

Chalcogenide-based phase-change metamaterials

open access: yes, 2014
Phase-change metamaterials combine the sharp resonant dispersions afforded by metamaterials with the optical switching characteristics of phase-change chalcogenides to create a high-contrast, non-volatile planar optical modulator.
Maddock, Jonathan
core   +1 more source

Fine structure and formation mechanism of particulate phase-inversion poly(vinylidene fluoride) membranes

open access: yes, 2013
The structure and formation mechanism of a microporous phase-inversion poly(vinylidene fluoride) (PVDF) membrane exhibiting a relatively loosely packed agglomerate of semicrystalline globules are explored.
Cheng, Liao-Ping   +1 more
core   +1 more source

Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites

open access: yesJournal of Advanced Ceramics, 2019
Chalcostibite (CuSbS2) is composed of earth-abundant elements and has a proper band gap (E g = 1.05 eV) as a thermoelectric (TE) material. Herein, we report the TE properties in the CuSbS2based composites with a mole ratio of (1−x)CuSbS2−xCu18S (x = 0, 0.
Chunmei Tang   +4 more
doaj   +1 more source

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