局部平衡热力学的进一步扩展是允许材料具有”记忆” ,因此它们的本构方程不仅依赖于当前值,而且依赖于局域平衡变量的过去值。因此相比于无记忆材料依赖时间的局域平衡热力学,在有记忆材料研究中时间在物理图像中更为深入,但是流并不是状态的独立变量。<ref>{{cite journal | last1 = Coleman | first1 = B.D. | last2 = Noll | first2 = W. | year = 1963 | title = The thermodynamics of elastic materials with heat conduction and viscosity | url = | journal = Arch. Ration. Mach. Analysis | volume = 13 | issue = 1| pages = 167–178 | doi=10.1007/bf01262690| bibcode = 1963ArRMA..13..167C }}</ref> | 局部平衡热力学的进一步扩展是允许材料具有”记忆” ,因此它们的本构方程不仅依赖于当前值,而且依赖于局域平衡变量的过去值。因此相比于无记忆材料依赖时间的局域平衡热力学,在有记忆材料研究中时间在物理图像中更为深入,但是流并不是状态的独立变量。<ref>{{cite journal | last1 = Coleman | first1 = B.D. | last2 = Noll | first2 = W. | year = 1963 | title = The thermodynamics of elastic materials with heat conduction and viscosity | url = | journal = Arch. Ration. Mach. Analysis | volume = 13 | issue = 1| pages = 167–178 | doi=10.1007/bf01262690| bibcode = 1963ArRMA..13..167C }}</ref> |