Equations of State for CaSiO3 perovskite

 

K0

K'0

V0

a 0

( P/ T)V

( KT/ T)V

( KT/ T)P

( a / P)T

( a / T)P

( 2P/ T2)V
 

(Gpa)

(fixed)

3)

(10-5/K)

(10-3Gpa/K)

(Gpa/K)

(Gpa/K)

(10-7Gpa/K)

(10-8/K2)

(GPa2/K2)
Isothermal room temp

232(8)

[4.8]

45.58(4)(8)

-

-

-

-
 

-

-
isobaric

-

[4.8]

-

3.23(2)

7.2

0.008

-0.028

-5.24(19)

[0]

-
Isochoric

-

[4.8]

-

3.1

7.2(3)

-0.004

-0.031

-5.8

-

-
TP EoS (1)

223(7)

[4.8]

45.60(5)

3.23

7.5(5)

0.005(22)

-0.031

-5.7

0.36

[0]
TP EoS (2)

229(4)

[4.8]

45.61(2)

3.01

6.9(1)

[0]

-0.033

-6.3

0.43

[0]
TP EoS (3)

233(9)

[4.8]

45.58(4)

3.06

7.1(1)

[0]

-0.034

-6.4

0.44

[0]
H-T BM EoS (0)

[232]

[4.8]

[45.58]

3.55(18)

8.2

0.004

-0.036(8)

-6.7

[0]

[0]
H-T BM EoS (1)

[232]

[4.8]

[45.58]

3.06(14)

7.1

0.012

-0.022(10)

-4.1

[0]

[0]
H-T BM EoS (2)

[232]

[4.8]

[45.58]

3.19(48)

7.4

0.001

-0.035(15)

-6.5

0.45(40)

[0]

* parameters in square brackets are held fixed during the regression;

High temperature results use the room-temperature 3rd-order Birch-Murnaghan equation of state

in which the room temperature parameters K0 and K'0 are replaced by their high-temperature counterparts:

KT and K'T and V0 is replaced by VT.

We call this the high-temperature Birch-Murnaghan equation of state.