Topic
Aluminium oxide
About: Aluminium oxide is a research topic. Over the lifetime, 4710 publications have been published within this topic receiving 54153 citations. The topic is also known as: Abramant & Abramax.
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01 Jan 2011
TL;DR: In this article, five metal (III) chlorides including InCl3 and lanthanide(III) chloride (LaCl3, CeCl3 NdCl3), impregnated on aluminium oxide pillared bentonite (MCl3/Al-PLB) which not report on the utilization, were investigated for selective alkylation of p-cresol.
Abstract: Five metal (III) chlorides including InCl3 and lanthanide (III) chloride (LaCl3, CeCl3 NdCl3 and GdCl3) impregnated on aluminium oxide pillared bentonite (MCl3/Al-PLB) which not report on the utilization, were investigated for selective alkylation of p-cresol. These catalysts were characterized by XRD, BET and NH3-TPD. The reaction temperature, time and mole ratio of catalyst to substrate were explored for optimization conditions. The optimization conditions were disclosed at 150°C for 2 h using 1:4 mole ratio. InCl3/Al-PLB revealed high selectivity for O-alkylation.
TL;DR: In this article, the effects of the silicon dioxide to aluminium oxide molar ratio, sodium oxide to aluminum oxide ratio and concentration of sodium hydroxide on the water absorption and water absorption were discussed.
Abstract: This paper discusses the effects of the silicon dioxide to aluminium oxide molar ratio, sodium oxide to aluminium oxide molar ratio and concentration of sodium hydroxide on the water absorption and...
01 Feb 2008
TL;DR: In this paper, a boron suspension in terpineol was applied to iron, titanium as well as to polycrystalline aluminium oxide, titanium dioxide and yttria doped zirconium dioxide substrates by screen printing.
Abstract: A boron suspension in terpineol was applied to iron, titanium as well as to polycrystalline aluminium oxide, titanium dioxide and yttria doped zirconium dioxide substrates by screen printing. The samples were dried at 125 °C. The specimens were placed into a covered aluminium oxide crucible together with metallic magnesium. Conversion to magnesium diboride was carried out in an argon - hydrogen (6.5 vol-%) atmosphere under ambient pressure. Sintering temperature depended on the substrate chosen and varied between 750 °C and 950 °C. Dense and uniform MgB2-layers were obtained, showing transition temperatures of up to 38 K. Characterisation of the films was performed by X-ray diffraction, by scanning electron microscopy as well as by temperature - resistance measurements. Furthermore, technological applications of this technique will be discussed.
Patent•
29 Dec 2010
TL;DR: In this article, the authors provide a coating part and a preparing method of the coating film, which comprises a matrix, a magnesium oxide-aluminum oxide (Mgo-Al2O3) mixture layer and an anti-fingerprint layer which are sequentially formed on the surface of the matrix.
Abstract: The invention provides a coating part and a preparing method of the coating film. The coating film comprises a matrix, a magnesium oxide-aluminum oxide (Mgo-Al2O3) mixture layer and an anti-fingerprint layer which are sequentially formed on the surface of the matrix, wherein the anti-fingerprint layer is a magnesium aluminium oxide fluoride (MgAlOxFy) layer, wherein x is greater than 0 and is less than 2.5, and y is greater than 0 and is less than 5. The preparing method of the coating film comprises the following steps of: providing a matrix; with a magnesium-aluminium alloy target as a target product and oxygen as a reactant gas, sputtering the magnesium oxide-aluminum oxide (Mgo-Al2O3) mixture layer on the surface of the matrix by adopting a magneto-controlled sputter coating method; with the magnesium-aluminium alloy target as the target product and oxygen and carbon tetrafluoride as reactant gases, preparing the magnesium aluminium oxide fluoride (MgAlOxFy) layer on the surface of the magnesium oxide-aluminum oxide (Mgo-Al2O3) mixture layer by adopting the magneto-controlled sputter coating method, wherein x is greater than 0 and is less than 2.5, and y is greater than 0 and is less than 5. The coating part has good anti-fingerprint function.