Study on the Preparation of Fe3O4 Nano-Magnetic Fluid for Seal

Chen, Bing; Fan, Yu Guang

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Mesh-Free Numerical Simulation for Carbon Nanotubes upon Bending, p.17
Ab Initio Study of the Structural and Mechanical Properties of Hf-Si-N, p.22
Nanocomposite Materials Design and the Sintering Optimization Based on Interface Strengthening, p.26
Influence of Nano-CaCO₃ on the Properties of Magneto-Rheological Fluid, p.30
Study on the Preparation of Fe₃O₄ Nano-Magnetic Fluid for Seal, p.34
Hybrid Finite Element Formulation for Temperature Prediction in Carbon Nanofiber Based Composites, p.39
Effects of Immersion Time on the Electrochemical Impedance Spectroscopy Model of Epoxy Coating Modified by Nano-Sized Titanium, p.43
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A Self-Assembly Approach to Fabricate Bi₂S₃ Nanorods, p.51

Home > Advanced Materials Research > Manufacturing Engineering and Automation I > Study on the Preparation of...

Paper Title:

Study on the Preparation of Fe₃O₄ Nano-Magnetic Fluid for Seal

Periodical	Advanced Materials Research (Volumes 139 - 141)
Main Theme	Manufacturing Engineering and Automation I
Edited by	Liangchi Zhang, Chunliang Zhang and Tielin Shi
Pages	34-38
DOI	10.4028/www.scientific.net/AMR.139-141.34
Citation	Bing Chen et al., 2010, Advanced Materials Research, 139-141, 34
Online since	October, 2010
Authors	Bing Chen, Yu Guang Fan
Keywords	Fe₃O₄, Nano-Magnetic Fluid, Orthogonal Design, Particle Size
Price	US$ 28,-

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Abstract

Water-based Fe3O4 nano-magnetic fluid for seal was prepared by coprecipitation. In order to obtain nano-magnetic fluid preparation technology which can produce industrially, the choice of second coating surfactant has been studied. Factors affecting nano-particle size and particle saturation magnetization were investigated using five factors and three level orthogonal experimental design. The size of nano-particles and particle saturation magnetization were characterized by transmission electron microscopy (TEM) and WSM vibration magnetometer. The results showed that the adding speed of NaOH solution and heat-maintaining time after adding, adding speed and reaction temperature of sodium oleate solution, as well as the heating temperature of sodium oleate solution influence the properties of nano-magnetic particles more. With the optimum process parameters, Fe3O4 nano-magnetic fluid which is below 15nm and can meet the nano-magnetic fluid sealing technology requirements has been prepared.