Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics
© 2018 Trans Tech Publications, Switzerland. This research investigated the effects of sintering temperatures on the structural, dielectric, ferroelectric, piezoelectric and mechanical properties of lead-free Bismuth Sodium Potassium Titanate (BNKT) piezoelectric ceramics. The BNKT ceramics were pre...
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th-cmuir.6653943832-627122018-11-29T07:47:03Z Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics Supalak Manotham Pichitchai Butnoi Narumon Lertcumfu Pharatree Jaita Engineering Materials Science © 2018 Trans Tech Publications, Switzerland. This research investigated the effects of sintering temperatures on the structural, dielectric, ferroelectric, piezoelectric and mechanical properties of lead-free Bismuth Sodium Potassium Titanate (BNKT) piezoelectric ceramics. The BNKT ceramics were prepared by solidstate mixed oxide method and sintering at temperature ranging from 1100 to 1150°C for 2 h. All ceramics sample showed highly density and reach a maximum at sintering temperature 1125°C of 5.81 g/cm3. X-ray diffraction patterns exhibited pure perovskite structure with coexisting of rhombohedral-tetragonal phases for all compositions. The microstructure was characterized by Scanning Electron Microscope (SEM), from SEM image the ceramics showed cubic-like grain shape. The average grain size increased with increasing sintering temperature. The dielectric permittivity showed the optimum sintering at 1125°C with reach a maximum dielectric constant of 4, 194. Furthermore, at sintering temperature 1125°C present highest strain (Smax = 0.14%) with a large normalized strain coefficient (d∗33 = Smax/Emax) of 233 pm/V. 2018-11-29T07:42:57Z 2018-11-29T07:42:57Z 2018-01-01 Book Series 10139826 2-s2.0-85054802062 10.4028/www.scientific.net/KEM.777.60 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85054802062&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/62712 |
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Engineering Materials Science Supalak Manotham Pichitchai Butnoi Narumon Lertcumfu Pharatree Jaita Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics |
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© 2018 Trans Tech Publications, Switzerland. This research investigated the effects of sintering temperatures on the structural, dielectric, ferroelectric, piezoelectric and mechanical properties of lead-free Bismuth Sodium Potassium Titanate (BNKT) piezoelectric ceramics. The BNKT ceramics were prepared by solidstate mixed oxide method and sintering at temperature ranging from 1100 to 1150°C for 2 h. All ceramics sample showed highly density and reach a maximum at sintering temperature 1125°C of 5.81 g/cm3. X-ray diffraction patterns exhibited pure perovskite structure with coexisting of rhombohedral-tetragonal phases for all compositions. The microstructure was characterized by Scanning Electron Microscope (SEM), from SEM image the ceramics showed cubic-like grain shape. The average grain size increased with increasing sintering temperature. The dielectric permittivity showed the optimum sintering at 1125°C with reach a maximum dielectric constant of 4, 194. Furthermore, at sintering temperature 1125°C present highest strain (Smax = 0.14%) with a large normalized strain coefficient (d∗33 = Smax/Emax) of 233 pm/V. |
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Book Series |
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Supalak Manotham Pichitchai Butnoi Narumon Lertcumfu Pharatree Jaita |
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Supalak Manotham Pichitchai Butnoi Narumon Lertcumfu Pharatree Jaita |
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Supalak Manotham |
title |
Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics |
title_short |
Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics |
title_full |
Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics |
title_fullStr |
Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics |
title_full_unstemmed |
Effects of sintering temperatures on structural, electrical and mechanical properties of BNKT piezoelectric ceramics |
title_sort |
effects of sintering temperatures on structural, electrical and mechanical properties of bnkt piezoelectric ceramics |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85054802062&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/62712 |
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