The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process
Our goal is to develop a structural ceramic for high-temperature applications in which silicon carbide-based materials (SiCs) are used as matrix composites. The potential of SiCs to deposit a mixture of SiC and zirconium diboride (ZrB<sub>2</sub>) plasma spray coating is analyzed. To dep...
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| Online Access: | https://www.mdpi.com/1996-1944/14/2/392 |
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| author | Eid M. Alosime Mohammed S. Alsuhybani Mohammed S. Almeataq |
| author_facet | Eid M. Alosime Mohammed S. Alsuhybani Mohammed S. Almeataq |
| author_sort | Eid M. Alosime |
| collection | DOAJ |
| description | Our goal is to develop a structural ceramic for high-temperature applications in which silicon carbide-based materials (SiCs) are used as matrix composites. The potential of SiCs to deposit a mixture of SiC and zirconium diboride (ZrB<sub>2</sub>) plasma spray coating is analyzed. To deposit thermal barrier layers containing up to 50 vol.% SiC, a high-pressure plasma spray (HPPS) process was used. Although the SiC cannot be deposited by thermal spray, a mixture of SiC and zirconium diboride (ZrB<sub>2</sub>) was deposited because these two compounds form a eutectic phase at a temperature below SiC decomposition. The preference was two different forms, 3 mm and 1 mm, of graphite substrates with different thickness values. A comparison of the morphology of SiC-ZrB<sub>2</sub> coatings before and after thermal treatment was performed by applying heat to the surface of a gas torch and traditional furnace between 800 °C and 1200 °C. The growth of the oxide scale was calculated with X-ray diffraction (XRD), scanning electron microscopy (SEM)/energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), and density. The oxide scale consists of a SiO<sub>2</sub> layer with ZrO<sub>2</sub> groups. The findings indicate a greater potential for the studied material in protecting against high-temperature oxidation and in a wide variety of aerospace applications. |
| first_indexed | 2024-03-09T04:44:43Z |
| format | Article |
| id | doaj.art-3490863e553f40c689cd9cfcf59fe6e0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T04:44:43Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-3490863e553f40c689cd9cfcf59fe6e02023-12-03T13:16:34ZengMDPI AGMaterials1996-19442021-01-0114239210.3390/ma14020392The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray ProcessEid M. Alosime0Mohammed S. Alsuhybani1Mohammed S. Almeataq2King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi ArabiaKing Abdulaziz City for Science and Technology, Riyadh 11442, Saudi ArabiaKing Abdulaziz City for Science and Technology, Riyadh 11442, Saudi ArabiaOur goal is to develop a structural ceramic for high-temperature applications in which silicon carbide-based materials (SiCs) are used as matrix composites. The potential of SiCs to deposit a mixture of SiC and zirconium diboride (ZrB<sub>2</sub>) plasma spray coating is analyzed. To deposit thermal barrier layers containing up to 50 vol.% SiC, a high-pressure plasma spray (HPPS) process was used. Although the SiC cannot be deposited by thermal spray, a mixture of SiC and zirconium diboride (ZrB<sub>2</sub>) was deposited because these two compounds form a eutectic phase at a temperature below SiC decomposition. The preference was two different forms, 3 mm and 1 mm, of graphite substrates with different thickness values. A comparison of the morphology of SiC-ZrB<sub>2</sub> coatings before and after thermal treatment was performed by applying heat to the surface of a gas torch and traditional furnace between 800 °C and 1200 °C. The growth of the oxide scale was calculated with X-ray diffraction (XRD), scanning electron microscopy (SEM)/energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), and density. The oxide scale consists of a SiO<sub>2</sub> layer with ZrO<sub>2</sub> groups. The findings indicate a greater potential for the studied material in protecting against high-temperature oxidation and in a wide variety of aerospace applications.https://www.mdpi.com/1996-1944/14/2/392silicon carbidehigh-pressure plasma sprayoxidation resistanceUltra-high temperature ceramic (UHTC) |
| spellingShingle | Eid M. Alosime Mohammed S. Alsuhybani Mohammed S. Almeataq The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process Materials silicon carbide high-pressure plasma spray oxidation resistance Ultra-high temperature ceramic (UHTC) |
| title | The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process |
| title_full | The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process |
| title_fullStr | The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process |
| title_full_unstemmed | The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process |
| title_short | The Oxidation Behavior of ZrB<sub>2</sub>-SiC Ceramic Composites Fabricated by Plasma Spray Process |
| title_sort | oxidation behavior of zrb sub 2 sub sic ceramic composites fabricated by plasma spray process |
| topic | silicon carbide high-pressure plasma spray oxidation resistance Ultra-high temperature ceramic (UHTC) |
| url | https://www.mdpi.com/1996-1944/14/2/392 |
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