Design and formulation of polyurethane foam used for porous alumina ceramics
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Polymer Research"
DOI: 10.1007/s10965-018-1535-1
Abstract: The present work studied a simple direct foaming method for preparation of porous alumina ceramics by expansion of a ceramic suspension based on polyurethane (PU) foam system. The effects of polyurethane formulas including catalyst composition,… read more here.
Keywords: foam; polyurethane; alumina ceramics; polyurethane foam ... See more keywords
Influence of Porosity and Pore Distributions on Strength Properties of Porous Alumina
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-018-3500-x
Abstract: In this work, strength properties of porous alumina with three different porosities as well as dense one were investigated to clarify porosity effects on strength properties. It was revealed that the strength had a general… read more here.
Keywords: properties porous; strength; porosity; strength properties ... See more keywords
Heat transfer in high porous alumina: Experimental data interpretation by different modelling approaches
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2017.04.071
Abstract: Abstract Advanced porous ceramics are a remarkable class of materials with important applications in engineering fields. Porosity features have received wide attention for their capability to influence all properties. In this paper, the correlation between… read more here.
Keywords: experimental data; transfer high; porous alumina; heat transfer ... See more keywords
Analyses of Young's modulus and thermal expansion coefficient of sintered porous alumina compacts
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DOI: 10.1016/j.ceramint.2017.06.095
Abstract: Abstract This paper reports the derivation of Young's modulus ( E ) and thermal expansion coefficient (TEC, β ) for a sintered porous structure with open pores. The theoretical E is affected by the number… read more here.
Keywords: porosity; structure; alumina compacts; porous alumina ... See more keywords
Fabrication of lamellar porous alumina with graded structures by combining centrifugal and directional freeze casting
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DOI: 10.1016/j.ceramint.2017.12.120
Abstract: Abstract Lamellar porous alumina with graded structures was fabricated through a novel method of simultaneous centrifugal casting and directional freeze casting. Alumina particles in ceramic slurry moved outward from the center by centrifugal force and… read more here.
Keywords: freeze casting; alumina graded; graded structures; porous alumina ... See more keywords
Fabrication of lanthanum-based perovskites membranes on porous alumina hollow fibre (AHF) substrates for oxygen enrichment
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.03.242
Abstract: Abstract In this work, two types of lanthanum-based MIEC perovskite oxides, namely La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and La0.6Sr0.4Co0.2Ni0.8O3-δ (LSCNi), were deposited onto porous alumina hollow fibre (AHF) substrates and used for oxygen enrichment. Such structure was developed… read more here.
Keywords: porous alumina; ahf; oxygen; lanthanum based ... See more keywords
Characteristics of castables incorporating highly porous alumina aggregates fabricated by high-temperature evaporation method
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DOI: 10.1016/j.ceramint.2019.04.055
Abstract: Abstract Porous alumina aggregates were prepared for use in adiabatic refractories via a high-temperature evaporation method. The mechanical and thermal characteristics of the porous alumina bodies and of castable refractories made using the alumina as… read more here.
Keywords: evaporation method; porous alumina; alumina aggregates; temperature evaporation ... See more keywords
High-performance macro-porous alumina-mullite ceramic membrane supports fabricated by employing coarse alumina and colloidal silica
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DOI: 10.1016/j.ceramint.2019.06.012
Abstract: Abstract Cost-effective porous alumina-mullite ceramic membrane supports were prepared from mixtures of different alumina/silica (Al2O3/SiO2) ratios of coarse α-alumina micro-powder and colloidal silica (CS). The effects of sintering temperature, Al2O3/SiO2 ratio and cornstarch content on… read more here.
Keywords: mullite ceramic; ceramic membrane; porous alumina; alumina mullite ... See more keywords
Thermal conductivity of porous Alumina-20 wt% zirconia ceramic composites
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DOI: 10.1016/j.ceramint.2020.03.224
Abstract: Abstract Effect of porosity and temperature on thermal conductivity of the porous Alumina-20 wt% Zirconia (3 mol.% Y2O3) ceramic composites with and without niobia were investigated. The ceramic powders were synthesized by the sol-gel route using alkoxide… read more here.
Keywords: porosity; ceramic composites; conductivity porous; thermal conductivity ... See more keywords
Rhodamine B adsorption on anodic porous alumina in sodium dodecyl sulfate solutions
Sign Up to like & getrecommendations! Published in 2018 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2018.06.079
Abstract: Abstract Anodic porous alumina (APA) with its positively charged surface can be dyed by electrostatic interactions with negatively charged dye molecules. In this study, an anionic surfactant, sodium dodecyl sulfate (SDS) was found to allow… read more here.
Keywords: dodecyl sulfate; sodium dodecyl; anodic porous; porous alumina ... See more keywords
Preparation of multilayered porous alumina hollow spheres by anodization of Al particles
Sign Up to like & getrecommendations! Published in 2020 at "Electrochemistry Communications"
DOI: 10.1016/j.elecom.2020.106848
Abstract: Abstract Multilayered porous hollow spheres were obtained by the periodic anodization of small Al particles in different electrolytes and subsequent selective etching. The periodic anodization of small Al particles in concentrated H2SO4 and oxalic acid… read more here.
Keywords: hollow spheres; porous alumina; alumina hollow; multilayered porous ... See more keywords