카본입자를 이용한 분산액의 전기유변학적 거동 = Electrorheological Behavior of Carbonaceous Particle - Based Suspensions

다국어 초록 (Multilingual Abstract)

Electrorheological behavior of suspensions using three different carbonaceous particles was observed from various characterization methods. These different carbonaceous particle possess different oxygen content and were prepared by thermal treatment. All were from mesophase pitch which were cationic polymerized with naphthalene and HF/BF₃ under high temperature (500∼700℃). Special attention was put on different variables effecting on ER properties such as current density, temperature, electric field and weight fraction. We also measured the change of shear stress and shear viscosity from 20℃ to 100℃ to observe the durability of carbonaceous ER fluid.