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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Taib, Hariati
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Topics
Publications (10/10 displayed)
- 2021Fabrication of Silica (SiO2) Foam from Rice Husk Ash (RHA): Effects of Solid Loadings
- 2021Effect of Fabrication Method on Tensile Behaviour of Polysiloxane (POS) Filled Rice Husk Silica (RHA SiO2) Compositescitations
- 2020Effect of heat treatment on the structural, morphology and electrochemical performance of perovskite Ba0.5Sr0.5Co0.8Fe0.2O3−δ-Sm0.2Ce0.8O1.9 carbonate protective coating for SOFC metallic interconnect
- 2019Comparative Characterization on Structural Properties of Calcined Sm0.5Sr0.5CoO3-δ - Sm0.2Ce0.8O1.9 Carbonate as Potential Composite Cathode for SOFCcitations
- 2018Effect of SiO2 Solid Loading and Sintering Temperatures on the Physical Properties of SiO2-NiO Foamcitations
- 2018Effect of Various Solid Loadings in Producing Silica-Nickel Oxide (SiO2- NiO) Foams
- 2018Influence of Heat Treatment and Milling Speed on Phase Stability of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Composite Cathode Solid Oxide Fuel Cellcitations
- 2018The Effect of Sintering Temperature on Silica Derived from Rice Husk Ash - Nickel Oxide (SiO2-NiO) Foam Fabrication via Slurry Technique
- 2015Investigate suitable slnterlng temperature to produce claytan porcelain ceramic with addition of feldspar
- 2015Mechanical properties of polydimethylsiloxanes (PDMS) reinforced silica derived rice husk ash
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article
Fabrication of Silica (SiO2) Foam from Rice Husk Ash (RHA): Effects of Solid Loadings
Abstract
<jats:p>Silica (SiO<jats:sub>2</jats:sub>) foams have been widely applied in numerous fields, mainly filters and catalysts supports, due to their characteristics of high permeability, high porosity and specific surface area. In this study, foams of SiO<jats:sub>2</jats:sub> from rice husk ash (RHA) was fabricated <jats:italic>via</jats:italic> polymeric sponge replication method. Polymeric foam initially was used as template and dipped into SiO<jats:sub>2</jats:sub> slurry followed by drying and sintering to yield the replica of the original polymeric foam. Different solid loadings of SiO<jats:sub>2 </jats:sub>as-derived from RHA (20 to 35 wt. %) slurry and sintering temperature of 1150 °C were applied. Phase identification and chemical composition of the green and sintered foams were conducted using X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF). Morphological observations were performed using Scanning Electron Microscopy (SEM). Density and porosity of the SiO<jats:sub>2</jats:sub> foams were characterized using Archimedes method. Compressive strengths of the foams were determined as per ASTM C773-88 (1999). XRD analyses confirmed that the SiO<jats:sub>2</jats:sub> as derived from the RHA were of tridymite and cristobalite phases with as high as 93% purity, as confirmed by XRF analyses. The density of SiO<jats:sub>2</jats:sub> foams fabricated was in the range of 0.614 to 0.989 g/cm<jats:sup>3</jats:sup>, whereas the porosity values was in the range of 70% to 82%%. Compressive strengths were found to increase from 0.05 to 0.30 MPa respectively, proportionate with the increased SiO<jats:sub>2</jats:sub> solid loading. Excellent properties of the SiO<jats:sub>2</jats:sub> foams definitely signifies that the polymeric replication method is indeed a promising technique for SiO<jats:sub>2</jats:sub> as derived from RHA foam fabrication.</jats:p>