Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units
Refractory mixtures were prepared from: bauxite raw materials, grog and Kaolin. Different weight percentage of micro-SiC (5, 10, 15 and 20 wt%) and nano-SiC (2.5,5,7.5 and 10 wt%) was added to bauxite mixture to improve the refractories characteristics to suit the lining of oil treatment units. Semi...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2017-10-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_139993_d29b21346b082ea9d152f5445782fb06.pdf |
| _version_ | 1797325982457135104 |
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| author | S.A. Zaidan H. H. Jasim |
| author_facet | S.A. Zaidan H. H. Jasim |
| author_sort | S.A. Zaidan |
| collection | DOAJ |
| description | Refractory mixtures were prepared from: bauxite raw materials, grog and Kaolin. Different weight percentage of micro-SiC (5, 10, 15 and 20 wt%) and nano-SiC (2.5,5,7.5 and 10 wt%) was added to bauxite mixture to improve the refractories characteristics to suit the lining of oil treatment units. Semi-dry pressing used to forming cylindrical specimens with load (7 ton) and 25 mm in diameter after mixing the powder with 10 wt% Sodium Silicate as a binder. The specimens dried at (110 oC) for (2 h) and fired at (1400 oC) with soaking time (2 h). During firing process, some of nano-SiC powder oxidants and transformed to SiO2 glass phase with increasing mullite phase. Therefore; the bonds with bauxite increases as a result glass phase generated and lead to decreasing the porosity and increasing the shrinkage, density and mechanical properties compared with micro-SiC additives. |
| first_indexed | 2024-03-08T06:17:04Z |
| format | Article |
| id | doaj.art-fdd44d55fc4e4402871513f63bea4442 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:17:04Z |
| publishDate | 2017-10-01 |
| publisher | Unviversity of Technology- Iraq |
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| series | Engineering and Technology Journal |
| spelling | doaj.art-fdd44d55fc4e4402871513f63bea44422024-02-04T17:20:05ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582017-10-013510A99299810.30684/etj.35.10A.5139993Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment UnitsS.A. ZaidanH. H. JasimRefractory mixtures were prepared from: bauxite raw materials, grog and Kaolin. Different weight percentage of micro-SiC (5, 10, 15 and 20 wt%) and nano-SiC (2.5,5,7.5 and 10 wt%) was added to bauxite mixture to improve the refractories characteristics to suit the lining of oil treatment units. Semi-dry pressing used to forming cylindrical specimens with load (7 ton) and 25 mm in diameter after mixing the powder with 10 wt% Sodium Silicate as a binder. The specimens dried at (110 oC) for (2 h) and fired at (1400 oC) with soaking time (2 h). During firing process, some of nano-SiC powder oxidants and transformed to SiO2 glass phase with increasing mullite phase. Therefore; the bonds with bauxite increases as a result glass phase generated and lead to decreasing the porosity and increasing the shrinkage, density and mechanical properties compared with micro-SiC additives.https://etj.uotechnology.edu.iq/article_139993_d29b21346b082ea9d152f5445782fb06.pdfrefractorynanoceramicsilicon carbidekaolin and bauxite |
| spellingShingle | S.A. Zaidan H. H. Jasim Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units Engineering and Technology Journal refractory nano ceramic silicon carbide kaolin and bauxite |
| title | Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units |
| title_full | Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units |
| title_fullStr | Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units |
| title_full_unstemmed | Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units |
| title_short | Effect Nano-SiC Additives on Physical and Mechanical Properties of Bauxite Refractories Used in Oil Treatment Units |
| title_sort | effect nano sic additives on physical and mechanical properties of bauxite refractories used in oil treatment units |
| topic | refractory nano ceramic silicon carbide kaolin and bauxite |
| url | https://etj.uotechnology.edu.iq/article_139993_d29b21346b082ea9d152f5445782fb06.pdf |
| work_keys_str_mv | AT sazaidan effectnanosicadditivesonphysicalandmechanicalpropertiesofbauxiterefractoriesusedinoiltreatmentunits AT hhjasim effectnanosicadditivesonphysicalandmechanicalpropertiesofbauxiterefractoriesusedinoiltreatmentunits |