Tunable negative coefficient thermal expansion materials and composites
Abstract
The present disclosure is directed to variable composition ceramics. Zr(2−x)Hf(x)WP2O12 and Hf2WP2O12 exhibit large negative thermal expansion that is linear over a large temperature range up to at least 900° C., These new ceramic material particles may be mixed with polymers to make a composite suitable for use in backsheets for photovoltaic modules or in other applications. The thermal expansion coefficient of the composite can be tailored to match that of the solar cell in order to reduce stress resulting from daily thermal cycling.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293971
- Patent Number(s):
- 11840459
- Application Number:
- 17/401,905
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- DOE Contract Number:
- AC04-94AL85000; NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 08/13/2021
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Gordon, Margaret Ellen, Payne, Clay, Bryan, Charles R., Rodriguez, Mark A., and Maes, Ashley. Tunable negative coefficient thermal expansion materials and composites. United States: N. p., 2023.
Web.
Gordon, Margaret Ellen, Payne, Clay, Bryan, Charles R., Rodriguez, Mark A., & Maes, Ashley. Tunable negative coefficient thermal expansion materials and composites. United States.
Gordon, Margaret Ellen, Payne, Clay, Bryan, Charles R., Rodriguez, Mark A., and Maes, Ashley. Tue .
"Tunable negative coefficient thermal expansion materials and composites". United States. https://www.osti.gov/servlets/purl/2293971.
@article{osti_2293971,
title = {Tunable negative coefficient thermal expansion materials and composites},
author = {Gordon, Margaret Ellen and Payne, Clay and Bryan, Charles R. and Rodriguez, Mark A. and Maes, Ashley},
abstractNote = {The present disclosure is directed to variable composition ceramics. Zr(2−x)Hf(x)WP2O12 and Hf2WP2O12 exhibit large negative thermal expansion that is linear over a large temperature range up to at least 900° C., These new ceramic material particles may be mixed with polymers to make a composite suitable for use in backsheets for photovoltaic modules or in other applications. The thermal expansion coefficient of the composite can be tailored to match that of the solar cell in order to reduce stress resulting from daily thermal cycling.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 12 00:00:00 EST 2023},
month = {Tue Dec 12 00:00:00 EST 2023}
}
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