Journal of Applied Physics

, том 126 , издание 12 , страницы 125109

A model of hardness and fracture toughness of solids

Тип публикации: Journal Article

Дата публикации: 2019-09-25

AIP Publishing

Journal of Applied Physics

SCImago Q2

WOS Q3

БС1

SJR: 0.528

CiteScore: 4.4

Impact factor: 2.7

ISSN: 00218979, 10897550

DOI: 10.1063/1.5113622

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General Physics and Astronomy

Краткое описание

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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Метрики

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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.

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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.

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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 -

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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}

}

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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.

Издатель

AIP Publishing

Журнал

Journal of Applied Physics

SCImago Q2

WOS Q3

БС1

SJR

0.528

CiteScore

4.4

Impact factor