Equation of state of bcc-Mo by static volume compression to 410 GPa
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Equation of state of bcc-Mo by static volume compression to 410 GPa
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| Creator |
Yuichi, Akahama
Naohisa, Hirao Yasuo, Ohishi Singh, AK |
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| Subject |
Chemistry and Materials (General)
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| Description |
Unit cell volumes of Mo and Pt have been measured simultaneously to ≈400 GPa by x-ray powder diffraction using a diamond anvil cell and synchrotron radiation source. The body-centered cubic (bcc) phase of Mo was found to be stable up to 410 GPa. The equation of state (EOS) of bcc-Mo was determined on the basis of Pt pressure scale. A fit of Vinet EOS to the volume compression data gave K 0 = 262.3(4.6) GPa, K 0′ = 4.55(16) with one atmosphere atomic volume V 0 = 31.155(24) A3. The EOS was in good agreement with the previous ultrasonic data within pressure difference of 2.5%–3.3% in the multimegabar range, though the EOS of Mo proposed from a shock compression experiment gave lower pressure by 7.2%–11.3% than the present EOS. The agreement would suggest that the Pt pressure scale provides an accurate pressure value in an ultra-high pressure range.
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| Publisher |
American Institute of Physics
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| Date |
2014
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| Type |
Journal Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://nal-ir.nal.res.in/12055/1/2014_EOS_Mo_410GPa.pdf
Yuichi, Akahama and Naohisa, Hirao and Yasuo, Ohishi and Singh, AK (2014) Equation of state of bcc-Mo by static volume compression to 410 GPa. Journal of Applied Physics, 116 . ISSN 0021-8979 |
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| Relation |
http://scitation.aip.org/content/aip/journal/jap/116/22/10.1063/1.4903940
http://nal-ir.nal.res.in/12055/ |
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