Pyroelectric energy conversion using Ba 0.85 Sr 0.15 Zr 0.1 Ti 0.9 O 3 ceramics and its cement-based composites

Anuruddh Kumar, Sidhant Kumar, Satyanarayan Patel, Moolchand Sharma, Puneet Azad, Rahul Vaish, Rajeev Kumar, K. S. Srikanth

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

In this article, we focus on cement-binded Ba 0.85 Sr 0.15 Zr 0.1 Ti 0.9 O 3 ceramics for pyroelectric applications. It was prepared with the Ba 0.85 Sr 0.15 Zr 0.1 Ti 0.9 O 3 -to-cement ratios of 85%:15% and 80%:20% by weight. In order to improve the effectiveness of thermal-to-electric energy conversion, the synchronized switch harvesting on inductor technique is experimentally tested on cement composites. Our experimental findings reveal that this concept based on synchronized switch harvesting on inductor can significantly increase the amount of power extracted from pyroelectric materials. Furthermore, the optimized power across 15% and 20% cement composites were found to be 7.2 and 6 nW, respectively, in series synchronized switch harvesting on inductor and 8.5 and 7 nW, respectively, in parallel synchronized switch harvesting on inductor. These values are significantly higher when compared with non-switched circuit for pyroelectric applications. Although, from the obtained results for the prepared composites, the power output is less when compared with pure Ba 0.85 Sr 0.15 Zr 0.1 Ti 0.9 O 3 , they have some advantages: these composites can be made without any sintering process and are compatible for structural applications.

Original languageEnglish
Pages (from-to)869-877
Number of pages9
JournalJournal of Intelligent Material Systems and Structures
Volume30
Issue number6
DOIs
StatePublished - 1 Apr 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s) 2019.

Keywords

  • Pyroelectric
  • cement composites
  • dielectric
  • ferroelectric

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