HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures?

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Standard Standard

HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures? / Zapata-Solvas, Eugenio; Moshtaghioun, Bibi Malmal; Gómez-García, Diego et al.
In: Scripta Materialia, Vol. 203, 114037, 10.2021.

Research output: Contribution to journalArticlepeer-review

HarvardHarvard

Zapata-Solvas, E, Moshtaghioun, BM, Gómez-García, D, Domínguez-Rodríguez, A & Lee, WE 2021, 'HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures?', Scripta Materialia, vol. 203, 114037. https://doi.org/10.1016/j.scriptamat.2021.114037

APA

Zapata-Solvas, E., Moshtaghioun, B. M., Gómez-García, D., Domínguez-Rodríguez, A., & Lee, W. E. (2021). HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures? Scripta Materialia, 203, Article 114037. https://doi.org/10.1016/j.scriptamat.2021.114037

CBE

Zapata-Solvas E, Moshtaghioun BM, Gómez-García D, Domínguez-Rodríguez A, Lee WE. 2021. HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures?. Scripta Materialia. 203:Article 114037. https://doi.org/10.1016/j.scriptamat.2021.114037

MLA

VancouverVancouver

Zapata-Solvas E, Moshtaghioun BM, Gómez-García D, Domínguez-Rodríguez A, Lee WE. HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures? Scripta Materialia. 2021 Oct;203:114037. Epub 2021 Jun 14. doi: 10.1016/j.scriptamat.2021.114037

Author

Zapata-Solvas, Eugenio ; Moshtaghioun, Bibi Malmal ; Gómez-García, Diego et al. / HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures?. In: Scripta Materialia. 2021 ; Vol. 203.

RIS

TY - JOUR

T1 - HfB2 ceramic polycrystals: A low-temperature metal-like ceramic at high temperatures?

AU - Zapata-Solvas, Eugenio

AU - Moshtaghioun, Bibi Malmal

AU - Gómez-García, Diego

AU - Domínguez-Rodríguez, Arturo

AU - Lee, William E.

PY - 2021/10

Y1 - 2021/10

N2 - Hafnium diboride (HfB2) is a highly refractory (melting above 3000°C) ceramic with many potential applications at high temperatures. To enable its use at temperature for extended periods its high-temperature plasticity must be known. This paper examines the mechanical response at temperatures between 900°C and 2000°C in air and in a reducing atmosphere, interpreting the data in the frame of classical models for the plasticity of compact-packed metals at low temperatures. In particular, the Friedel law and the principle of similitude for dislocation patterning are assessed. This reveals that HfB2 is a singular example of a ceramic material with “metal” mechanical behaviour.

AB - Hafnium diboride (HfB2) is a highly refractory (melting above 3000°C) ceramic with many potential applications at high temperatures. To enable its use at temperature for extended periods its high-temperature plasticity must be known. This paper examines the mechanical response at temperatures between 900°C and 2000°C in air and in a reducing atmosphere, interpreting the data in the frame of classical models for the plasticity of compact-packed metals at low temperatures. In particular, the Friedel law and the principle of similitude for dislocation patterning are assessed. This reveals that HfB2 is a singular example of a ceramic material with “metal” mechanical behaviour.

KW - HfB

KW - Mechanical properties

KW - Zero-strain rate sensitivity

U2 - 10.1016/j.scriptamat.2021.114037

DO - 10.1016/j.scriptamat.2021.114037

M3 - Article

VL - 203

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

M1 - 114037

ER -