Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials
We theoretically investigated the variable mechanical properties such as Young’s modulus, Poisson’s ratios and compressibility in super-hard materials. Our tensorial analysis reveals that the mechanical properties of super-hard materials are strongly sensitive to the anisotropy index of materials. I...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2014-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4904100 |
| _version_ | 1818261430322855936 |
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| author | Chuanwei Huang Rongpeng Li Lang Chen |
| author_facet | Chuanwei Huang Rongpeng Li Lang Chen |
| author_sort | Chuanwei Huang |
| collection | DOAJ |
| description | We theoretically investigated the variable mechanical properties such as Young’s modulus, Poisson’s ratios and compressibility in super-hard materials. Our tensorial analysis reveals that the mechanical properties of super-hard materials are strongly sensitive to the anisotropy index of materials. In sharp contrast to the traditional positive constant as thought before, the Poisson’s ratio of super-hard materials could be unexpectedly negative, zero, or even positive with a value much larger than the isotropic upper limit of 0.5 along definite directions. Our results uncover a correlation between compressibility and hardness, which offer insights on the prediction of new super-hard materials. |
| first_indexed | 2024-12-12T18:47:06Z |
| format | Article |
| id | doaj.art-46cb018fbd514f16b93c31dd89194475 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-12T18:47:06Z |
| publishDate | 2014-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-46cb018fbd514f16b93c31dd891944752022-12-22T00:15:28ZengAIP Publishing LLCAIP Advances2158-32262014-12-01412127116127116-710.1063/1.4904100020412ADVAnisotropic elasticity and abnormal Poisson’s ratios in super-hard materialsChuanwei Huang0Rongpeng Li1Lang Chen2Department of Physics, South University of Science and Technology of China, Shenzhen, Guangdong, 518055, People’s Republic of ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong, 518055, People’s Republic of ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong, 518055, People’s Republic of ChinaWe theoretically investigated the variable mechanical properties such as Young’s modulus, Poisson’s ratios and compressibility in super-hard materials. Our tensorial analysis reveals that the mechanical properties of super-hard materials are strongly sensitive to the anisotropy index of materials. In sharp contrast to the traditional positive constant as thought before, the Poisson’s ratio of super-hard materials could be unexpectedly negative, zero, or even positive with a value much larger than the isotropic upper limit of 0.5 along definite directions. Our results uncover a correlation between compressibility and hardness, which offer insights on the prediction of new super-hard materials.http://dx.doi.org/10.1063/1.4904100 |
| spellingShingle | Chuanwei Huang Rongpeng Li Lang Chen Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials AIP Advances |
| title | Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials |
| title_full | Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials |
| title_fullStr | Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials |
| title_full_unstemmed | Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials |
| title_short | Anisotropic elasticity and abnormal Poisson’s ratios in super-hard materials |
| title_sort | anisotropic elasticity and abnormal poisson s ratios in super hard materials |
| url | http://dx.doi.org/10.1063/1.4904100 |
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