A model of hardness and fracture toughness of solids
Efim Mazhnik
1
,
A. R. Oganov
1, 2, 3
Publication type: Journal Article
Publication date: 2019-09-25
scimago Q2
wos Q3
SJR: 0.580
CiteScore: 5.1
Impact factor: 2.5
ISSN: 00218979, 10897550
General Physics and Astronomy
Abstract
Hardness and fracture toughness are some of the most important mechanical properties. Here, we propose a simple model that uses only the elastic properties to calculate the hardness and fracture toughness. Its accuracy is checked by comparison with other available models and experimental data for metals, covalent and ionic crystals, and bulk metallic glasses. We found the model to perform well on all datasets for both hardness and fracture toughness, while for auxetic materials (i.e., those having a negative Poisson’s ratio), it turned out to be the only model that gives reasonable hardness. Predictions are made for several materials for which no experimental data exist.Hardness and fracture toughness are some of the most important mechanical properties. Here, we propose a simple model that uses only the elastic properties to calculate the hardness and fracture toughness. Its accuracy is checked by comparison with other available models and experimental data for metals, covalent and ionic crystals, and bulk metallic glasses. We found the model to perform well on all datasets for both hardness and fracture toughness, while for auxetic materials (i.e., those having a negative Poisson’s ratio), it turned out to be the only model that gives reasonable hardness. Predictions are made for several materials for which no experimental data exist.
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Total citations:
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Citations from 2024:
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GOST
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Mazhnik E. et al. A model of hardness and fracture toughness of solids // Journal of Applied Physics. 2019. Vol. 126. No. 12. p. 125109.
GOST all authors (up to 50)
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Mazhnik E., Oganov A. R. A model of hardness and fracture toughness of solids // Journal of Applied Physics. 2019. Vol. 126. No. 12. p. 125109.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1063/1.5113622
UR - https://doi.org/10.1063/1.5113622
TI - A model of hardness and fracture toughness of solids
T2 - Journal of Applied Physics
AU - Mazhnik, Efim
AU - Oganov, A. R.
PY - 2019
DA - 2019/09/25
PB - AIP Publishing
SP - 125109
IS - 12
VL - 126
SN - 0021-8979
SN - 1089-7550
ER -
Cite this
BibTex (up to 50 authors)
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@article{2019_Mazhnik,
author = {Efim Mazhnik and A. R. Oganov},
title = {A model of hardness and fracture toughness of solids},
journal = {Journal of Applied Physics},
year = {2019},
volume = {126},
publisher = {AIP Publishing},
month = {sep},
url = {https://doi.org/10.1063/1.5113622},
number = {12},
pages = {125109},
doi = {10.1063/1.5113622}
}
Cite this
MLA
Copy
Mazhnik, Efim, et al. “A model of hardness and fracture toughness of solids.” Journal of Applied Physics, vol. 126, no. 12, Sep. 2019, p. 125109. https://doi.org/10.1063/1.5113622.
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