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IJPAP Vol.47 [2009] >
IJPAP Vol.47(01) [January 2009] >
| Title: | Analysis of high pressure equations of state for solids |
| Authors: | Lal, K
Singh, C P
Chauhan, R S |
| Keywords: | Pressure derivative of bulk modulus
Infinite pressure behaviour
hcp iron
Constraints for K'∞ |
| Issue Date: | Jan-2009 |
| Publisher: | CSIR |
| Abstract: | Four equations of state for solids with adjustable parameter K'∞, the pressure derivative of bulk modulus at infinite pressure have been studied. These equations are the Keane EOS, the Stacey reciprocal K' - EOS, the generalized Rydberg EOS and the Roy-Roy EOS. It is found that the Keane EOS and the Stacey EOS are very similar requiring K'∞ to be considerably larger than 5/3. The generalized Rydberg EOS yields satisfactory results with a value of K'∞ = 5/3. For the Roy-Roy EOS, K'∞ has been found to remain between 5/3 and 2. This has been demonstrated by calculating P, K and K' for hcp iron at different compressions. |
| Page(s): | 28-31 |
| ISSN: | 0019-5596 |
| Source: | IJPAP Vol.47(01) [January 2009]
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