对电流变体系相变的进一步讨论

Further Discussion of Phase Transition on Electrorheological Fluid

从二个不同的侧面 ,进一步讨论了电流变体系的相变问题 ,使人们更清楚地理解电流变体系相变的物理本质 .以前的讨论只考虑了由于悬浮颗粒的极化所导致的吸引作用 ,而忽略了实际存在的排斥作用 .考虑了排斥作用后 ,所求出的临界电场 ,除了与温度和介电常数有关外 ,还与颗粒之间的排斥作用有关 ,弥补了以前讨论中存在的不足 .

To make people understand more clearly the essence of phase transition,the phase transition in electrorheological fluid is further discussed from two different sides.The previous discussion merely considered the attraction action resulting from the polarixation of the suspended particles but omitted the actual repelling action. After having considered the repelling action, the obtained critical field, has relation to the repelling action among particles as well as to temperature and dielectric constant.The results obtaind can explain main characteristics of the experimental results.