Results 261 to 270 of about 547,292 (342)
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Physica B: Condensed Matter, 2021
The ultraviolet–visible (UV–Vis) range (200–800 nm) optical behaviour of nanocomposite films consisted of poly (vinyl pyrrolidone)/poly (vinyl alcohol) (PVP/PVA) blend matrix and alumina (Al2O3) nanofiller (1–5 wt%) were characterized for their eco ...
Priyanka Dhatarwal, R. J. Sengwa
semanticscholar +1 more source
The ultraviolet–visible (UV–Vis) range (200–800 nm) optical behaviour of nanocomposite films consisted of poly (vinyl pyrrolidone)/poly (vinyl alcohol) (PVP/PVA) blend matrix and alumina (Al2O3) nanofiller (1–5 wt%) were characterized for their eco ...
Priyanka Dhatarwal, R. J. Sengwa
semanticscholar +1 more source
Construction and Building Materials, 2021
Geopolymers cured at ambient temperature are of high interest since they provide promising environmentally friendly alternative to cement. This paper discusses the effect of the initial molar ratio of SiO2/Al2O3 and fly ash replacement with ground ...
A. Dehghani +2 more
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Geopolymers cured at ambient temperature are of high interest since they provide promising environmentally friendly alternative to cement. This paper discusses the effect of the initial molar ratio of SiO2/Al2O3 and fly ash replacement with ground ...
A. Dehghani +2 more
semanticscholar +1 more source
, 2021
Al2O3 ceramics are fabricated by stereolithography based additive manufacturing in present reports. To improve the densification and performance of Al2O3 ceramic, the introduction of fine grains or sintering additives has been studied by traditional ...
Keqiang Zhang +4 more
semanticscholar +1 more source
Al2O3 ceramics are fabricated by stereolithography based additive manufacturing in present reports. To improve the densification and performance of Al2O3 ceramic, the introduction of fine grains or sintering additives has been studied by traditional ...
Keqiang Zhang +4 more
semanticscholar +1 more source
�-Al2O3 synthesis from m-Al2O3
Journal of Applied Electrochemistry, 1980β-Al2O3 formation fromm-Al2O3 was found by a new convenient technique. By thermal decomposition of a complex compound, trioxalatoaluminate Na x (NH4)3−x [Al(C2O4)3]yH2O(0.091 ⩽x ⩽ 0.333;y= 3), a very fine powder ofm-Al2O3 was formed.
T. Takahashi, K. Kuwabara
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, 2020
Structural and chemical stability is the key factors of microwave absorbers for their applications in case of high-temperature oxidation. In this study, a plasma-induced method is developed to get a multistrata core-shell structure of FeSiAl@Al2O3@SiO2 ...
Yang Guo +9 more
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Structural and chemical stability is the key factors of microwave absorbers for their applications in case of high-temperature oxidation. In this study, a plasma-induced method is developed to get a multistrata core-shell structure of FeSiAl@Al2O3@SiO2 ...
Yang Guo +9 more
semanticscholar +1 more source
, 2020
The structure of γ-Al2O3, the most important catalyst support, is still under discussion; especially the positions of the Al3+cations and vacancies are debated.
R. Prins
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The structure of γ-Al2O3, the most important catalyst support, is still under discussion; especially the positions of the Al3+cations and vacancies are debated.
R. Prins
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Chemical Data Collections, 2020
In this study, α-Al2O3 nanoparticles were prepared using a simple sol-gel method. Prepared α-Al2O3 nanoparticles characterized by XRD, FESEM, TEM, and EDS analysis.
A. Mohammed, Z. Khodair, A. Khadom
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In this study, α-Al2O3 nanoparticles were prepared using a simple sol-gel method. Prepared α-Al2O3 nanoparticles characterized by XRD, FESEM, TEM, and EDS analysis.
A. Mohammed, Z. Khodair, A. Khadom
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Interfacial reactions in Al2O3/Ti, Al2O3/Ti3Al and Al2O3/TiAl bilayers
Thin Solid Films, 1999Abstract Interfacial reactions were studied at three different heat-treated oxide/metal bilayers (oxide: amorphous a-Al 2 O 3 and metal: crystalline c-Ti, Ti 3 Al or TiAl) by means of AES depth profiling. The different oxide/metal bilayers were sputter deposited on smooth silicon substrates, covered with a TiN thin-film diffusion barrier.
A Zalar +4 more
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Radial profiles in Pt/Al2O3, Re/Al2O3 , and Pt-Re/Al2O3
Applied Catalysis, 1984Abstract The competitive effect of HCl on H2PtCl6 and/or HReO4 deposition on γ-Al2O3 was studied. For this purpose HCl, H2PtCl6, and HReO4 adsorption isotherms were determined, and the radial distribution profiles of the three components were obtained by impregnating cylindrical tablets.
Sergio R. de Miguel +5 more
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Slip casting of Al2O3 and Al2O3/ZrO2 composites
Journal of Materials Science, 1990Al2O3 and Al2O3/ZrO2 composites have been fabricated by slip casting from aqueous suspensions. The physical and structural characteristics of the starting powders, composition of the suspensions, casting behaviour, microstructure of the green and fired bodies and the mechanical properties of the products were investigated. The addition of ZrO2 to Al2O3
BELLOSI A +2 more
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