Evaluation of Kalalani vermiculite for production of high strength porcelain insulators
The present work has evaluated Kalalani vermiculite as a potential raw material for the production of high strength porcelain insulators. Three porcelain compositions were prepared to contain 0, 20 and 30 wt% of Kalalani vermiculite. Porcelain samples were fabricated using a semi-drying met...
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| Format: | Article |
| Language: | English |
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International Institute for the Science of Sintering, Beograd
2019-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2019/0350-820X1902223N.pdf |
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| author | Ngayakamo Blasius Park Eugene S. |
| author_facet | Ngayakamo Blasius Park Eugene S. |
| author_sort | Ngayakamo Blasius |
| collection | DOAJ |
| description | The present work has evaluated Kalalani vermiculite as a potential raw
material for the production of high strength porcelain insulators. Three
porcelain compositions were prepared to contain 0, 20 and 30 wt% of Kalalani
vermiculite. Porcelain samples were fabricated using a semi-drying method.
The chemical, mineralogical phases and microstructural characterization of
the raw materials were carried out using XRF, XRD, and SEM techniques,
respectively. Water absorption, bulk density, dielectric and bending
strengths were performed on porcelain samples fired up to 1300°C. However,
at the sintering temperature of 1250°C, the porcelain sample with 20 wt% of
Kalalani vermiculite gave the dielectric strength of 61.3 kV/mm, bending
strength of 30.54 MPa, bulk density of 2.21 g/cm3 and low water absorption
value of 0.21 % which is the prerequisite properties for high strength
porcelain insulators. It was therefore concluded that Kalalani vermiculite
has the potential to be used for the production of high strength porcelain
insulators |
| first_indexed | 2024-04-13T11:40:24Z |
| format | Article |
| id | doaj.art-278d3bd33c3d45a7913753d033ee771f |
| institution | Directory Open Access Journal |
| issn | 0350-820X 1820-7413 |
| language | English |
| last_indexed | 2024-04-13T11:40:24Z |
| publishDate | 2019-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj.art-278d3bd33c3d45a7913753d033ee771f2022-12-22T02:48:19ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132019-01-0151222323210.2298/SOS1902223N0350-820X1902223NEvaluation of Kalalani vermiculite for production of high strength porcelain insulatorsNgayakamo Blasius0Park Eugene S.1Nelson Mandela African Institution of Science and Technology, Department of Materials and Energy Science and Engineering, Arusha, TanzaniaNelson Mandela African Institution of Science and Technology, Department of Materials and Energy Science and Engineering, Arusha, TanzaniaThe present work has evaluated Kalalani vermiculite as a potential raw material for the production of high strength porcelain insulators. Three porcelain compositions were prepared to contain 0, 20 and 30 wt% of Kalalani vermiculite. Porcelain samples were fabricated using a semi-drying method. The chemical, mineralogical phases and microstructural characterization of the raw materials were carried out using XRF, XRD, and SEM techniques, respectively. Water absorption, bulk density, dielectric and bending strengths were performed on porcelain samples fired up to 1300°C. However, at the sintering temperature of 1250°C, the porcelain sample with 20 wt% of Kalalani vermiculite gave the dielectric strength of 61.3 kV/mm, bending strength of 30.54 MPa, bulk density of 2.21 g/cm3 and low water absorption value of 0.21 % which is the prerequisite properties for high strength porcelain insulators. It was therefore concluded that Kalalani vermiculite has the potential to be used for the production of high strength porcelain insulatorshttp://www.doiserbia.nb.rs/img/doi/0350-820X/2019/0350-820X1902223N.pdfKalalani vermiculiteporcelain insulatorssinteringdensification |
| spellingShingle | Ngayakamo Blasius Park Eugene S. Evaluation of Kalalani vermiculite for production of high strength porcelain insulators Science of Sintering Kalalani vermiculite porcelain insulators sintering densification |
| title | Evaluation of Kalalani vermiculite for production of high strength porcelain insulators |
| title_full | Evaluation of Kalalani vermiculite for production of high strength porcelain insulators |
| title_fullStr | Evaluation of Kalalani vermiculite for production of high strength porcelain insulators |
| title_full_unstemmed | Evaluation of Kalalani vermiculite for production of high strength porcelain insulators |
| title_short | Evaluation of Kalalani vermiculite for production of high strength porcelain insulators |
| title_sort | evaluation of kalalani vermiculite for production of high strength porcelain insulators |
| topic | Kalalani vermiculite porcelain insulators sintering densification |
| url | http://www.doiserbia.nb.rs/img/doi/0350-820X/2019/0350-820X1902223N.pdf |
| work_keys_str_mv | AT ngayakamoblasius evaluationofkalalanivermiculiteforproductionofhighstrengthporcelaininsulators AT parkeugenes evaluationofkalalanivermiculiteforproductionofhighstrengthporcelaininsulators |