Preparation and Parameters Measurement of Magnetic Fluid

Abstract

Abstract Magnetic fluid is a liquid nano-size magnetic material which has unique properties such as flowability, paramagnetism, and magnetic permeability. The composition of magnetic fluid was introduced. The preparation devices were collected and listed. The preparation of magnetic particles was made by chemical coprecipitation. The particles were coated with surfactant in the experiment. Then the coated particles were added in the base carrier fluid according to the procedure of preparation. Magnetic fluid was prepared by chemical coprecipitation. The parameters of magnetic fluid were measured for kinds of engineering applications. The magnetism of magnetic fluid is one of the most important parameters, which was measured and displayed. The saturated magnetism should be increased for more applications.