Crystalline Structures and Thermal-Chemical Properties of Compounds
Phase or Compound: MgZn2
System: Mg-Zn Binary
Property Entry Summary
System
Mg-Zn binary
Phase or compound
MgZn2
General description
System, Phase or compound, Concentration range,
Temperature range
Crystallographic data
Pearson symbol, Space group, Prototype, Lattice
parameters
Thermo-chemical property tables
Heat capacity, Enthalpy, Entropy, Gibbs free energy,
Equilibrium constant
Thermo-Chemical property curves
Heat capacity, Enthalpy, Entropy, Gibbs free energy
General Description
System
Mg-Zn binary
Phase or comound
MgZn2
Concentration range
66.7 at.% Zn
Temperature range
Below 600℃
Reference: C. M. Liu, X. R. Zhu, H. T. Zhou, et al. Magnesium alloy phase diagrams [M].
Central-South University Press, Changsha, 2006.
Crystallographic Data
Phase or
compound
Pearson
symbol
Space
group
Proto-type
Lattice
parameters , nm
(a,b,c)
MgZn2
hP12
P63/mmc
MgZn2
a=0.5223(1)
c= 0.8566(3)
Comment
c/a , or α or β
γ=120℃
Remark
Reference：P. Villars, A. Prince, H. Okamoto. Handbook of ternary alloy phase diagrams
[M], ASM: Materials park, Ohio, 1995.
Crystalline Structures and Thermal-Chemical Properties of Compounds
Thermo-Chemical Property Tables
Phase or
compound
T
[K]
MgZn2
CP
S
-(G-H298)/T
H-H298
[J/(K*mol)]
ΔH f
ΔG f
[KJ/mol]
log K f
[-]
No information is obtained
Reference: Barin Ihsan. Thermochemical data of pure substances, VCH :Weinheim,
1995.
Thermo-Chemical Property Curves
Calculated Thermo-Chemical Property Curves
Phase or
compound
MgZn2
Figure
Title
1
Heat capacity of MgZn2
2
Enthalpy of MgZn2
3
Entropy of MgZn2
4
Gibbs free energy of MgZn2
Parameters
Temperature range:
300-1500K
Concentration: 66.7 at.% Zn
Reference: P. Liang, T. Tarfa, J.A. Robinson, et al. Experimental investigation and
thermodynamic calculation of the Al-Mg-Zn system. Thermochimica Acta,
1998, 314: 87-110.
Crystalline Structures and Thermal-Chemical Properties of Compounds
Crystalline Structures and Thermal-Chemical Properties of Compounds