Electrocaloric effect in lead-free Aurivillius relaxor ferroelectric ceramics
- Submitting institution
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London South Bank University
- Unit of assessment
- 12 - Engineering
- Output identifier
- 219519
- Type
- D - Journal article
- DOI
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10.1016/j.actamat.2016.11.001
- Title of journal
- Acta Materialia
- Article number
- -
- First page
- 120-126
- Volume
- 124
- Issue
- -
- ISSN
- 1359-6454
- Open access status
- Technical exception
- Month of publication
- November
- Year of publication
- 2016
- URL
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https://www.sciencedirect.com/science/article/pii/S1359645416308540?via%3Dihub
- Supplementary information
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-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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3
- Research group(s)
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C - The London Centre for Energy Engineering
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- First time a doped ceramic Aurivillius relaxor SrBi2(Nb0.2Ta0.8 )2O9 have been reported to tune the operational EC temperature towards room temperature and also improve the electrocaloric effect (ECE) number at these temperature. Doping with only a small amount of praseodymium (Pr) reduced the optimal temperature from 300 °C to 80 °C without property degradation. These are unique electrocaloric results for this type of ceramic. The paper describes the combined effort of proper ceramic processing and understanding of electrocaloric measurement can bring in a new range of affordable lead free ceramics into solid state cooling for which it has been cited.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -