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http://ceramics.org/wp-content/uploads/2009/07/production_edson.pdf
¾Developed a sintered macro-porous (>1 micron; >30% porous) alumina support tube 10 cm in length using MMCP and low-pressure injection molding ¾Transfer technology from OSU on using aqueous ceramic suspensions for the intermediate layers ¾Use OSU-developed method for deposition of dense, ultra-thin (200-300 nm) Pd membrane layer
https://link.springer.com/article/10.1007%2FBF02475683
Abstract. Porous alumina as single tubes and as a multihole structure with controlled properties has been prepared. It is shown that the porous structure of these supports can be controlled without burning out additives but by a variation of the ratio between the main alumina component (α-Al 2 O 3) and aluminium hydroxide (binder) in the extrusion masses and thermal treatment conditions.Cited by: 26
https://www.sciencedirect.com/science/article/pii/S0272884219314968
Oct 01, 2019 · Cost-effective porous alumina-mullite ceramic membrane supports were prepared from mixtures of different alumina/silica (Al 2 O 3 /SiO 2) ratios of coarse α-alumina micro-powder and colloidal silica (CS).The effects of sintering temperature, Al 2 O 3 /SiO 2 ratio and cornstarch content on the crystalline phase evolution, microstructures, porosity, bending strength, pore size distribution and ...Author: Juan Ma, Xiuan Xi, Chao He, Weiwei Chen, Wei Tian, Jianqiao Li, Cong Wang, Biyun Luo, Anze Shui, Kai...
https://link.springer.com/chapter/10.1007%2F978-1-4419-8666-5_50
Abstract. The high surface area alumina with well developed open porosity of nano-scale pore diameter, which is used as a catalyst, catalyst support or a membrane top-layer, has in recent years been obtained by a sol-gel process, using aluminium alcoxide as a precursor 1–6.Cited by: 1
https://www.sciencedirect.com/science/article/pii/S0254058419308636
Jan 01, 2020 · Synthesis and characterization of alpha alumina-natural apatite based porous ceramic support for filtration application. ... These results approve that it is not sufficient to justify the mechanical properties of a porous supports adequately with any parameter separately. Yet, more study about the composition of the glassy phase and their ...Author: Youssef Guesmi, Ridha Lafi, Hassen Agougui, Mahjoub Jabli, Mahjoub Jabli, Abdallah Oun, Swachchha Ma...
https://www.researchgate.net/publication/229239238_Corrosion_resistance_characterization_of_porous_alumina_membrane_supports
Tubular porous alumina ceramic membrane supports were fabricated by an extrusion–drying–sintering process and then characterized in detail in terms of corrosion resistance in both H2SO4 and ...
https://ceramics.onlinelibrary.wiley.com/doi/full/10.1002/ces2.10013
Jun 14, 2019 · The effect of type of sacrificial template on the processing and properties of porous alumina ceramics was investigated. Two templates, (a) hollow pre‐expanded polymer spheres (Expancel) and (b) dense glassy carbon, were used to prepare porous alumina ceramics by gel casting.Cited by: 1
http://onlinelibrary.wiley.com/doi/10.1111/j.1551-2916.2006.01037.x/abstract
Apr 28, 2006 · Strong and permeable macro-porous α-Al 2 O 3 membrane supports are made by colloidal filtration of 20 vol% dispersions of α-Al 2 O 3 with an average particle size of 600 nm. Intact compacts with very good surface quality were obtained at an optimum pH of 9.5 and dosage of 0.2 wt% ammonium aurintricarboxylate (Aluminon), based on dry alumina.
https://www.sciencedirect.com/topics/engineering/porous-alumina
The hydrotreating catalyst is a porous alumina matrix impregnated with combinations of cobalt (Co), nickel (Ni), molybdenum (Mo) and tungsten (W). The catalysts mainly have pores with a surface area of (200–300 m 2 /g). Co–Mo catalysts are the most popular for …
https://www.sciencedirect.com/science/article/pii/S0167577X14022484
Apr 01, 2015 · An ultra-high purity porous alumina ceramic support was prepared by boehmite-coated alumina powders at a relatively low temperature. Its corrosion resistance in 20 wt% H 2 SO 4 and 10 wt% NaOH hot solutions for 2 to 8 h was investigated. After corrosion in H 2 SO 4 solution for 8 h, the mass loss was only 0.55%, the flexural strength decreased by 9.85% and the open porosity increased …Cited by: 55
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