Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate
This paper reports some research findings on the parallel evolutions of microstructural properties and thermal diffusivity in strontium titanate. Strontium titanate samples have been prepared via the high energy ball milling technique and subsequently moulded by a hydraulic pressing and followed by...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications
2016
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/27892/1/Influence%20of%20parallel%20evolving%20microstructure%20on%20thermal%20diffusivity%20in%20strontium%20titanate.pdf |
| _version_ | 1796971220382515200 |
|---|---|
| author | Ibrahim, Idza Riati Hashim, Mansor Abdul Wahab, Zaidan Matori, Khamirul Amin Nazlan, Rodziah Ismail, Ismayadi Abdullah, Nor Hapishah Wan Ab Rahman, Wan Norailiana Mohd Idris, Fadzidah |
| author_facet | Ibrahim, Idza Riati Hashim, Mansor Abdul Wahab, Zaidan Matori, Khamirul Amin Nazlan, Rodziah Ismail, Ismayadi Abdullah, Nor Hapishah Wan Ab Rahman, Wan Norailiana Mohd Idris, Fadzidah |
| author_sort | Ibrahim, Idza Riati |
| collection | UPM |
| description | This paper reports some research findings on the parallel evolutions of microstructural properties and thermal diffusivity in strontium titanate. Strontium titanate samples have been prepared via the high energy ball milling technique and subsequently moulded by a hydraulic pressing and followed by cold isostatic pressing. Nanometer-sized compacted powder samples were sintered from 500 to 1400°C using 100°C increments. Strontium titanate formation was observed at as early as 500°C sintering temperature alongside secondary phases. The full formation of strontium titanate was observed at 800°C sintering temperature and above. Average grain sizes showed a fluctuating trend with increased sintering temperatures due to carbonate decomposition at lower sintering temperatures (500 to 800°C) and grain growth phenomenon at higher sintering temperatures (900 to 1400°C). Parallel characterization of evolving thermal diffusivity showed the same trend of fluctuation at low sintering temperatures as indirect relationship but increased with increased grain size due to a lesser amount of phonon scattering. However, thermal diffusivity values decreased with increased temperatures because of increased phonon-phonon scattering. |
| first_indexed | 2024-03-06T08:09:44Z |
| format | Article |
| id | upm.eprints-27892 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:09:44Z |
| publishDate | 2016 |
| publisher | Trans Tech Publications |
| record_format | dspace |
| spelling | upm.eprints-278922016-06-20T02:47:01Z http://psasir.upm.edu.my/id/eprint/27892/ Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate Ibrahim, Idza Riati Hashim, Mansor Abdul Wahab, Zaidan Matori, Khamirul Amin Nazlan, Rodziah Ismail, Ismayadi Abdullah, Nor Hapishah Wan Ab Rahman, Wan Norailiana Mohd Idris, Fadzidah This paper reports some research findings on the parallel evolutions of microstructural properties and thermal diffusivity in strontium titanate. Strontium titanate samples have been prepared via the high energy ball milling technique and subsequently moulded by a hydraulic pressing and followed by cold isostatic pressing. Nanometer-sized compacted powder samples were sintered from 500 to 1400°C using 100°C increments. Strontium titanate formation was observed at as early as 500°C sintering temperature alongside secondary phases. The full formation of strontium titanate was observed at 800°C sintering temperature and above. Average grain sizes showed a fluctuating trend with increased sintering temperatures due to carbonate decomposition at lower sintering temperatures (500 to 800°C) and grain growth phenomenon at higher sintering temperatures (900 to 1400°C). Parallel characterization of evolving thermal diffusivity showed the same trend of fluctuation at low sintering temperatures as indirect relationship but increased with increased grain size due to a lesser amount of phonon scattering. However, thermal diffusivity values decreased with increased temperatures because of increased phonon-phonon scattering. Trans Tech Publications 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/27892/1/Influence%20of%20parallel%20evolving%20microstructure%20on%20thermal%20diffusivity%20in%20strontium%20titanate.pdf Ibrahim, Idza Riati and Hashim, Mansor and Abdul Wahab, Zaidan and Matori, Khamirul Amin and Nazlan, Rodziah and Ismail, Ismayadi and Abdullah, Nor Hapishah and Wan Ab Rahman, Wan Norailiana and Mohd Idris, Fadzidah (2016) Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate. Materials Science Forum, 846. pp. 416-425. ISSN 0255-5476; ESSN: 1662-9752 http://www.scientific.net/MSF.846.416 10.4028/www.scientific.net/MSF.846.416 |
| spellingShingle | Ibrahim, Idza Riati Hashim, Mansor Abdul Wahab, Zaidan Matori, Khamirul Amin Nazlan, Rodziah Ismail, Ismayadi Abdullah, Nor Hapishah Wan Ab Rahman, Wan Norailiana Mohd Idris, Fadzidah Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| title | Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| title_full | Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| title_fullStr | Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| title_full_unstemmed | Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| title_short | Influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| title_sort | influence of parallel evolving microstructure on thermal diffusivity in strontium titanate |
| url | http://psasir.upm.edu.my/id/eprint/27892/1/Influence%20of%20parallel%20evolving%20microstructure%20on%20thermal%20diffusivity%20in%20strontium%20titanate.pdf |
| work_keys_str_mv | AT ibrahimidzariati influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT hashimmansor influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT abdulwahabzaidan influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT matorikhamirulamin influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT nazlanrodziah influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT ismailismayadi influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT abdullahnorhapishah influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT wanabrahmanwannorailiana influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate AT mohdidrisfadzidah influenceofparallelevolvingmicrostructureonthermaldiffusivityinstrontiumtitanate |