Elastic and ultrasonic properties of fermium monopnictides
Determinations of higher order elastic constants, thermal properties, mechanical properties and ultrasonic behavior have been done for fermium monopnictides. Initially, the lattice and non-linearity parameters were used to compute the higher order elastic constants at temperatures of0K,...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Khon Kaen University
2020-06-01
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| Series: | Engineering and Applied Science Research |
| Subjects: | |
| Online Access: | https://ph01.tci-thaijo.org/index.php/easr/article/download/216247/163955/ |
| _version_ | 1818935976158822400 |
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| author | Jyoti Bala Devraj Singh |
| author_facet | Jyoti Bala Devraj Singh |
| author_sort | Jyoti Bala |
| collection | DOAJ |
| description | Determinations of higher order elastic constants, thermal properties, mechanical properties and ultrasonic behavior have been done for fermium monopnictides. Initially, the lattice and non-linearity parameters were used to compute the higher order elastic constants at temperatures of0K, 100K, 200K and 300K by means of the Born potential mode. Variation of Cauchy’s relations has been found at higher temperature due to weak atomic interactions. The second order elastic constants (SOECs) were used to estimate mechanical parameters such as the Young’s modulus, bulk modulus, Pugh’s ratio, shear modulus, Zener’s anisotropy factor, hardness, and Poisson ratio. On the basis of the values of these parameters, we found a brittle nature of fermium monopnictides. Furthermore, the SOECs were applied to compute the wave velocities for shear and longitudinal modes of propagation along <100>, <110> and <111> crystallographic orientations. Properties such as the lattice thermal conductivity, acoustic coupling constant, thermal relaxation time and attenuation of ultrasonic waves due to thermo-elastic and phonon-phonon interaction mechanisms have been calculated at room temperature. The results of present investigation have been analysed with available findings on other rare-earth materials. |
| first_indexed | 2024-12-20T05:28:43Z |
| format | Article |
| id | doaj.art-3612798249b0499fa9ac1abd51c9c2bc |
| institution | Directory Open Access Journal |
| issn | 2539-6161 2539-6218 |
| language | English |
| last_indexed | 2024-12-20T05:28:43Z |
| publishDate | 2020-06-01 |
| publisher | Khon Kaen University |
| record_format | Article |
| series | Engineering and Applied Science Research |
| spelling | doaj.art-3612798249b0499fa9ac1abd51c9c2bc2022-12-21T19:51:49ZengKhon Kaen UniversityEngineering and Applied Science Research2539-61612539-62182020-06-0147218218910.14456/easr.2020.20Elastic and ultrasonic properties of fermium monopnictidesJyoti BalaDevraj SinghDeterminations of higher order elastic constants, thermal properties, mechanical properties and ultrasonic behavior have been done for fermium monopnictides. Initially, the lattice and non-linearity parameters were used to compute the higher order elastic constants at temperatures of0K, 100K, 200K and 300K by means of the Born potential mode. Variation of Cauchy’s relations has been found at higher temperature due to weak atomic interactions. The second order elastic constants (SOECs) were used to estimate mechanical parameters such as the Young’s modulus, bulk modulus, Pugh’s ratio, shear modulus, Zener’s anisotropy factor, hardness, and Poisson ratio. On the basis of the values of these parameters, we found a brittle nature of fermium monopnictides. Furthermore, the SOECs were applied to compute the wave velocities for shear and longitudinal modes of propagation along <100>, <110> and <111> crystallographic orientations. Properties such as the lattice thermal conductivity, acoustic coupling constant, thermal relaxation time and attenuation of ultrasonic waves due to thermo-elastic and phonon-phonon interaction mechanisms have been calculated at room temperature. The results of present investigation have been analysed with available findings on other rare-earth materials.https://ph01.tci-thaijo.org/index.php/easr/article/download/216247/163955/fermium monopnictideshigher order elastic constantthermal conductionultrasonic attenuation |
| spellingShingle | Jyoti Bala Devraj Singh Elastic and ultrasonic properties of fermium monopnictides Engineering and Applied Science Research fermium monopnictides higher order elastic constant thermal conduction ultrasonic attenuation |
| title | Elastic and ultrasonic properties of fermium monopnictides |
| title_full | Elastic and ultrasonic properties of fermium monopnictides |
| title_fullStr | Elastic and ultrasonic properties of fermium monopnictides |
| title_full_unstemmed | Elastic and ultrasonic properties of fermium monopnictides |
| title_short | Elastic and ultrasonic properties of fermium monopnictides |
| title_sort | elastic and ultrasonic properties of fermium monopnictides |
| topic | fermium monopnictides higher order elastic constant thermal conduction ultrasonic attenuation |
| url | https://ph01.tci-thaijo.org/index.php/easr/article/download/216247/163955/ |
| work_keys_str_mv | AT jyotibala elasticandultrasonicpropertiesoffermiummonopnictides AT devrajsingh elasticandultrasonicpropertiesoffermiummonopnictides |