Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | e20198 |
| Fachzeitschrift | Journal of the American Ceramic Society |
| Jahrgang | 108 |
| Ausgabenummer | 2 |
| Publikationsstatus | Veröffentlicht - 1 Dez. 2024 |
Abstract
High-performance polycrystalline calcium cobaltite ceramic was synthesized via electrospinning of nanoribbons, followed by dual-process compaction using spark plasma sintering and edge-free spark plasma texturing. The combination of nanoribbon electrospinning and this multistage sintering technique was employed for the first time and resulted in exceptionally well-textured thermoelectric ceramics. The textured ceramic had excellent thermoelectric properties. At 1073 K, the ceramic exhibited an electrical conductivity of 268 S cm−1, a Seebeck coefficient of 247 µV K−1 and a heat conductivity of 3.3 W m−1 K−1. In addition, the power factor and figure-of-merit reached enormously high values of 16.3 µW cm−1 K−2 and 0.53, respectively. This represents the highest thermoelectric performance reported to date not only for electrospun, polycrystalline calcium cobaltite fiber ceramics, but also for undoped polycrystalline calcium cobaltite ceramics.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: Journal of the American Ceramic Society, Jahrgang 108, Nr. 2, e20198, 01.12.2024.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
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TY - JOUR
T1 - High-performance thermoelectric calcium cobaltite nanoribbon ceramic via electrospinning and dual spark plasma texturing
AU - Kruppa, Katharina
AU - Maor, Itzhak I.
AU - Karlin, Anat
AU - Steinbach, Frank
AU - Shter, Gennady E.
AU - Stobitzer, Dorothea
AU - Petersen, Hilke
AU - Breidenstein, Bernd
AU - Mann-Lahav, Meirav
AU - Grader, Gideon S.
AU - Feldhoff, Armin
N1 - Publisher Copyright: © 2024 The Author(s). Journal of the American Ceramic Society published by Wiley Periodicals LLC on behalf of American Ceramic Society.
PY - 2024/12/1
Y1 - 2024/12/1
N2 - High-performance polycrystalline calcium cobaltite ceramic was synthesized via electrospinning of nanoribbons, followed by dual-process compaction using spark plasma sintering and edge-free spark plasma texturing. The combination of nanoribbon electrospinning and this multistage sintering technique was employed for the first time and resulted in exceptionally well-textured thermoelectric ceramics. The textured ceramic had excellent thermoelectric properties. At 1073 K, the ceramic exhibited an electrical conductivity of 268 S cm−1, a Seebeck coefficient of 247 µV K−1 and a heat conductivity of 3.3 W m−1 K−1. In addition, the power factor and figure-of-merit reached enormously high values of 16.3 µW cm−1 K−2 and 0.53, respectively. This represents the highest thermoelectric performance reported to date not only for electrospun, polycrystalline calcium cobaltite fiber ceramics, but also for undoped polycrystalline calcium cobaltite ceramics.
AB - High-performance polycrystalline calcium cobaltite ceramic was synthesized via electrospinning of nanoribbons, followed by dual-process compaction using spark plasma sintering and edge-free spark plasma texturing. The combination of nanoribbon electrospinning and this multistage sintering technique was employed for the first time and resulted in exceptionally well-textured thermoelectric ceramics. The textured ceramic had excellent thermoelectric properties. At 1073 K, the ceramic exhibited an electrical conductivity of 268 S cm−1, a Seebeck coefficient of 247 µV K−1 and a heat conductivity of 3.3 W m−1 K−1. In addition, the power factor and figure-of-merit reached enormously high values of 16.3 µW cm−1 K−2 and 0.53, respectively. This represents the highest thermoelectric performance reported to date not only for electrospun, polycrystalline calcium cobaltite fiber ceramics, but also for undoped polycrystalline calcium cobaltite ceramics.
KW - calcium cobaltites
KW - electrospinning
KW - nanoribbons
KW - spark plasma texturing
KW - texturing
KW - thermoelectric materials
UR - http://www.scopus.com/inward/record.url?scp=85207297479&partnerID=8YFLogxK
U2 - 10.1111/jace.20198
DO - 10.1111/jace.20198
M3 - Article
AN - SCOPUS:85207297479
VL - 108
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 2
M1 - e20198
ER -