先进材料疑固实验室 Viscosity of liquid metal Laboratory of Advanced Materials Solidification Physically,viscosity can be expressed as: 2tokeT./k 3 where kg is Boltzmann constant, U is the internal bonding energy without external force. to is the vibration period of the atoms at equilibrium position 10-13s for liquid metal. 6 is the distance between atomic layers in liquid. nced Ma 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITYViscosity of liquid metal Physically, viscosity can be expressed as: where kB is Boltzmann constant, U is the internal bonding energy without external force. τ0 is the vibration period of the atoms at equilibrium position 10-13s for liquid metal. δ is the distance between atomic layers in liquid. U / k T 3 B 0 B e 2 k T = ⋅ δ τ η