Essential Magnesium Alloys Binary Phase Diagrams and Their Thermochemical Data

Table 7

Enthalpy and entropy of formation of the Mg-Zn intermetallic compounds.

Compound	Enthalpy of formation (kJ/mole·atom)	Entropy of formation (J/mole·atom·K)	Reference
Mg51Zn20	−4.72	0.16	[22] Cal. (Calphad)
Mg12Zn13	−10.5±3.1		[142] Exp.
	−8.9±0.4		[77] Exp.
	−12.14±3		[130] Exp.
	−10.02	−1.92	[22] Cal. (Calphad)
	−7.9±3.1		[143] Exp.
Mg2Zn3	−13.96±3		[130] Exp.
	−10.99	−1.3	[22] Cal. (Calphad)
MgZn2	−17.6		[144] Exp.
	−15.05±1.1		[142] Exp.
	−10.9±0.4		[77] Exp.
	−13.8±3		[130] Exp.
	−18.66		[22] Cal. (Calphad)
	−10.4±1.5		[143] Exp.
Mg2Zn11	−10.0±2.5		[142] Exp.
	−8.96±3		[130] Exp.
	−6.60	−1.82	[22] Cal. (Calphad)