Unification of viscose models for
powder suspension system
powder suspension system
(1. National Key Laboratory for Powder Metallurgy, Central South University,Changsha 410083, China;
2. School of Materials Science and Engineering, Central South University,
Changsha 410083, China)
2. School of Materials Science and Engineering, Central South University,
Changsha 410083, China)
Abstract: The viscose models for powder suspension system was reviewed and analysed. It is found that by introducing modification function f(φ) in the differential form of classical Einstein's viscosity law, all of viscose models can be unified if f(φ) takes suitable form . Some rational forms of the function f(φ) were discussed according to functional approximation method, and a new rheological model contained two undetermined parameters was consequently developed, more suitable for high particle concentration dispersing system. The experimental results show that this new model is of better consistence.
Key words: suspension system; rheology; Einstein's viscose law