Effect of metal coating on physicochemical properties of ceramic foam for flame suppression application
Combustible dust may result in a catastrophic dust explosion with much larger accident consequences than gas explosions. In this study, porous materials are explored as a promising solution for mitigating explosions. This study focussed on the investigation of aluminium powder explosion in the influ...
محفوظ في:
| المؤلفون الرئيسيون: | , , , , |
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| التنسيق: | مقال |
| منشور في: |
Elsevier Ltd
2023
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://eprints.utm.my/105865/ http://dx.doi.org/10.1016/j.ceramint.2023.08.348 |
| الوسوم: |
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| المؤسسة: | Universiti Teknologi Malaysia |
| الملخص: | Combustible dust may result in a catastrophic dust explosion with much larger accident consequences than gas explosions. In this study, porous materials are explored as a promising solution for mitigating explosions. This study focussed on the investigation of aluminium powder explosion in the influence of ceramic foam, with and without coating with non-precious nickel nanopowders. The microscopic properties and structural characteristics of the ceramic foam were analyzed using X-ray spectroscopy, X-ray diffractometry, and scanning electron microscopy. The findings revealed that the nickel-coated ceramic foams are non-uniform and almost spherical in shape, with obvious agglomerations of metallic-silica present on the strut structure. Compared to non-coated ceramic, it can be said that nickel-coated ceramic foams demonstrate a significant reduction in maximum overpressure by approximately 10%. This suggests that the interconnected micro-network structure of the nickel-ceramic walls aids in quenching the flame of the aluminium dust explosion and hence, suppressing the overpressure. |
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