Special Quantities

Variable Abbrev. Unit Description or Example Domain Suffix

Q

QF(ph)1

n/a

Phase stability function

Phase

R

Under a condition and system definition, QFR(ph) = QF(ph)

Tc

TC(ph) 2

K

Curie temperature

Phase

R

Under a condition and system definition, TCR(ph) = TC(ph)

Mb

BMAG(ph)3

n/a

Bohr magneton number

Phase

R

Under a condition and system definition, BMAGR
(ph) = BMAG(ph)
D1G D1G(phase, site-fraction)

n/a

For example, D1G(FCC_A1#1, Cr#1) for first derivative of G for first composition set of FCC_A1 phase with respect to Cr site fraction on first sublattice.

TQGMDY

Phase n/a
D2G D2G(phase, site-fraction, site-fracton)

n/a

For example, D2G(FCC_A1#2, Cr#1, Cr#1) for second derivative of G for second composition set of FCC_A1 phase with respect to Cr site fraction on first sublattice.

TQDGYY

Phase n/a

1 Negative when phase composition is inside a spinodal, otherwise positive. Can be used to find out if an equilibrium is within the miscibility gap for a solution phase. Cannot be used as a condition.

2 Calculated for phases with magnetic contributions in an equilibrium state. Cannot be used as a condition, but can be plotted in POST or evaluated in POLY using SHOW_VALUE.

3 Calculated for phases with magnetic contributions in an equilibrium state.

n/a = not applicable