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R-Curves in Al2O3 - Al2O3/ZrO2 laminates
2005In order to better understand the fracture behavior of Al2O3-Al2O3/ZrO2 laminates, controlled crack growth experiments were carried out. The method proposed consists of a three-point bending test of a sandwich beam in which a notched specimen is located in between two metallic bars.
J Pascual, F Chalvet, T Lube, G de Portu
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Spectral selectivity of Al2O3-Cu-Al2O3 multilayer films
Solar Energy Materials, 1988Abstract The optical properties of Al2O3/Cu/Al2O3 films are reported for different angles of incidence of light in the wavelength range 900-190 nm. The multilayer films exhibit > 90% reflectance in the wavelength range 900-600 nm and low visible transmittance (
M.A. Angadi, K. Nallamshetty
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2019
Разработана методика группового выращивания из расплава монокристаллических (сапфир, иттрийалюминиевый гранат), а также эвтектических двойных гранатсодержащих (Al2O3Y3Al5O12, Al2O3Er3Al5O12) и перовскит содержащих (Al2O3GdAlO3) волокон диаметром от 150 мкм, обладающих высокой прочностью, термоокислительной стойкостью и сопротивлением ползучести при ...
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Разработана методика группового выращивания из расплава монокристаллических (сапфир, иттрийалюминиевый гранат), а также эвтектических двойных гранатсодержащих (Al2O3Y3Al5O12, Al2O3Er3Al5O12) и перовскит содержащих (Al2O3GdAlO3) волокон диаметром от 150 мкм, обладающих высокой прочностью, термоокислительной стойкостью и сопротивлением ползучести при ...
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Sputter-deposited Al2O3/Mo/Al2O3 selective absorber coatings
Thin Solid Films, 1980Abstract The development of large-area magnetron sputtering sources has made sputtering attractive for selective absorber applications. In this paper we describe an investigation of Al2O3/Mo/Al2O3 (AMA) interference-type selective absorber coatings deposited by cylindrical magnetron sputtering onto low emittance molybdenum-coated glass and stainless ...
John A. Thornton +2 more
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Calorimetric Study of Interaction Between Oxygen and β-Al2O3, β-Al2O3+Au and β-Al2O3+Pt
Journal of Thermal Analysis and Calorimetry, 2002In an attempt to improve the understanding of the electrochemical effects observed on an original potentiometric gas sensor, interactions of oxygen with the device were investigated. These calorimetric measurements have evidenced the existence of a weakly bounded endothermal oxygen species.
Guillet, Nicolas +2 more
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The Journal of Chemical Thermodynamics, 2013
Abstract All available thermodynamic and phase diagram data for the condensed phases of the (Al 2 O 3 + Na 2 O), (Al 2 O 3 + Na 2 O + SiO 2 ), and (Al 2 O 3 + Na 2 O + AlF 3 + NaF) systems have been critically assessed. Model parameters for solid solutions and a single set of parameters for the liquid solution in the binary, ternary, and ternary ...
Guillaume Lambotte, Patrice Chartrand
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Abstract All available thermodynamic and phase diagram data for the condensed phases of the (Al 2 O 3 + Na 2 O), (Al 2 O 3 + Na 2 O + SiO 2 ), and (Al 2 O 3 + Na 2 O + AlF 3 + NaF) systems have been critically assessed. Model parameters for solid solutions and a single set of parameters for the liquid solution in the binary, ternary, and ternary ...
Guillaume Lambotte, Patrice Chartrand
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Journal of Membrane Science, 2011
Abstract Al2O3, Al2O3–SiO2 and Al2O3–kaolin hollow fiber precursors were prepared by a wet-spinning method using polyethersulfone (PES), Al2O3, SiO2 and kaolin. The hollow fiber membranes were obtained after a preheating and sintering combining process.
Ling-Feng Han +4 more
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Abstract Al2O3, Al2O3–SiO2 and Al2O3–kaolin hollow fiber precursors were prepared by a wet-spinning method using polyethersulfone (PES), Al2O3, SiO2 and kaolin. The hollow fiber membranes were obtained after a preheating and sintering combining process.
Ling-Feng Han +4 more
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Impact Testing of Al2O3 and SiCw/Al2O3 Ceramics
1994A bar impact test procedure was used to study spallation of Al2O3 bars and dynamic fracture of Al2O3 and SiCw/Al2O3 bars. Fractography analysis of the spalled surface showed extensive intergranular fracture (90 to 95% area). Dynamic fracture studies of precracked Al2O3 and SiCw/Al2O3 bars showed that the dynamic initiation fracture toughness, KId, and ...
LR Deobald, AS Kobayashi
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2008
A liquidus surface for the Al2O3-rich corner of the Al2O3???HfO2???Gd2O3 system is constructed. No ternary compounds were found in the system under study. The ternary transformation point and the ternary eutectic point are discovered. The ternary eutectic Al2O3???GdAlO3???F-HfO2 exhibits the cooperative phase growing mechanism which allows one to ...
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A liquidus surface for the Al2O3-rich corner of the Al2O3???HfO2???Gd2O3 system is constructed. No ternary compounds were found in the system under study. The ternary transformation point and the ternary eutectic point are discovered. The ternary eutectic Al2O3???GdAlO3???F-HfO2 exhibits the cooperative phase growing mechanism which allows one to ...
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