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Functional Cementitious Composites for Pyroelectric Applications

Srikanth, K.S. and Patel, Satyanarayan and Vaish, Rahul (2018):
Functional Cementitious Composites for Pyroelectric Applications.
In: Journal of Electronic Materials, The Minerals, Metals & Materials Society, pp. 2378-2385, 47, (4), ISSN 0361-5235,
DOI: 10.1007/s11664-018-6071-6,
[Article]

Abstract

We have synthesized Ba0.85Ca0.15Zr0.10Ti0.88Sn0.02O3 (BCZT-Sn)-cement composites.They were prepared as BCZT-Sn to cement ratios of 90–10% and 85–15% by weight. The larger fraction of BCZT-Sn ceramic was used to minimizethe losses in the composites. The open circuit voltage was found to be 0.75 V,0.56 V and 0.4 V for pure, 10% and 15% cement composites, respectively. The voltage and current were also measured across resistances of 1 and 3 MX, and the obtained voltages were lower for composites compared to pure BCZT-Sn. Nonetheless, they remain promising candidates over traditional pyroelectric materials for device applications owing to their advantages, such as (1) these composites can be made without any sintering process and (2) they can be made in any shape and size. We also studied relative permittivity, which influences performance of pyroelectric devices.

Item Type: Article
Erschienen: 2018
Creators: Srikanth, K.S. and Patel, Satyanarayan and Vaish, Rahul
Title: Functional Cementitious Composites for Pyroelectric Applications
Language: English
Abstract:

We have synthesized Ba0.85Ca0.15Zr0.10Ti0.88Sn0.02O3 (BCZT-Sn)-cement composites.They were prepared as BCZT-Sn to cement ratios of 90–10% and 85–15% by weight. The larger fraction of BCZT-Sn ceramic was used to minimizethe losses in the composites. The open circuit voltage was found to be 0.75 V,0.56 V and 0.4 V for pure, 10% and 15% cement composites, respectively. The voltage and current were also measured across resistances of 1 and 3 MX, and the obtained voltages were lower for composites compared to pure BCZT-Sn. Nonetheless, they remain promising candidates over traditional pyroelectric materials for device applications owing to their advantages, such as (1) these composites can be made without any sintering process and (2) they can be made in any shape and size. We also studied relative permittivity, which influences performance of pyroelectric devices.

Journal or Publication Title: Journal of Electronic Materials
Volume: 47
Number: 4
Publisher: The Minerals, Metals & Materials Society
Uncontrolled Keywords: Pyroelectric, cement composites, relative permittivity, lead-free
Divisions: 11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences
Date Deposited: 06 Mar 2018 07:41
DOI: 10.1007/s11664-018-6071-6
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