Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study
Two-stage densification process of nanosized 3 mol% yttria-stabilized zirconia (3Y-SZ) polycrystalline compacts during consolidation via microwave and spark-plasma sintering have been observed. The values of activation energies obtained for microwave and spark-plasma sintering 260–275 kJ·mol−1 are q...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/99269 http://hdl.handle.net/10220/13707 |
| _version_ | 1811678272772112384 |
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| author | Vasylkiv, Oleg Demirskyi, Dmytro Sakka, Yoshio Ragulya, Andrey Borodianska, Hanna |
| author2 | Temasek Laboratories |
| author_facet | Temasek Laboratories Vasylkiv, Oleg Demirskyi, Dmytro Sakka, Yoshio Ragulya, Andrey Borodianska, Hanna |
| author_sort | Vasylkiv, Oleg |
| collection | NTU |
| description | Two-stage densification process of nanosized 3 mol% yttria-stabilized zirconia (3Y-SZ) polycrystalline compacts during consolidation via microwave and spark-plasma sintering have been observed. The values of activation energies obtained for microwave and spark-plasma sintering 260–275 kJ·mol−1 are quite similar to that of conventional sintering of zirconia, suggesting that densification during initial stage is controlled by the grain-boundary diffusion mechanism. The sintering behavior during microwave sintering was significantly affected by preliminary pressing conditions, as the surface diffusion mechanism (230 kJ·mol−1) is active in case of cold-isostatic pressing procedure was applied. |
| first_indexed | 2024-10-01T02:50:38Z |
| format | Journal Article |
| id | ntu-10356/99269 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:50:38Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/992692020-03-07T12:47:16Z Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study Vasylkiv, Oleg Demirskyi, Dmytro Sakka, Yoshio Ragulya, Andrey Borodianska, Hanna Temasek Laboratories DRNTU::Science::Chemistry Two-stage densification process of nanosized 3 mol% yttria-stabilized zirconia (3Y-SZ) polycrystalline compacts during consolidation via microwave and spark-plasma sintering have been observed. The values of activation energies obtained for microwave and spark-plasma sintering 260–275 kJ·mol−1 are quite similar to that of conventional sintering of zirconia, suggesting that densification during initial stage is controlled by the grain-boundary diffusion mechanism. The sintering behavior during microwave sintering was significantly affected by preliminary pressing conditions, as the surface diffusion mechanism (230 kJ·mol−1) is active in case of cold-isostatic pressing procedure was applied. 2013-09-30T02:07:53Z 2019-12-06T20:05:14Z 2013-09-30T02:07:53Z 2019-12-06T20:05:14Z 2012 2012 Journal Article Vasylkiv, O., Demirskyi, D., Sakka, Y., Ragulya, A., & Borodianska, H. (2012). Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study. Journal of nanoscience and nanotechnology, 12(6), 4577-4582. https://hdl.handle.net/10356/99269 http://hdl.handle.net/10220/13707 10.1166/jnn.2012.6177 en Journal of nanoscience and nanotechnology |
| spellingShingle | DRNTU::Science::Chemistry Vasylkiv, Oleg Demirskyi, Dmytro Sakka, Yoshio Ragulya, Andrey Borodianska, Hanna Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study |
| title | Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study |
| title_full | Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study |
| title_fullStr | Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study |
| title_full_unstemmed | Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study |
| title_short | Densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering—a comparative study |
| title_sort | densification kinetics of nanocrystalline zirconia powder using microwave and spark plasma sintering a comparative study |
| topic | DRNTU::Science::Chemistry |
| url | https://hdl.handle.net/10356/99269 http://hdl.handle.net/10220/13707 |
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