NDLI: Study on the two and three-parameter working stability regions of 3Y-TZP suspension

Content Provider	Springer Nature Link
Author	Chen, Youqiang Zhang, Xinni Chen, Sha’ou Qi, Ping
Copyright Year	2006
Abstract	We determined the variation tendency of viscosity (η) at various solids loading (ϕ) for 3Y-TZP suspension as a function of dispersant concentration (Cw) using viscosity measurement, measured the diameter of particles as a function of Cw in very dilute suspension using light scattering method, and obtained the surface features of the sediment of suspension with different Cw using SEM. We also discussed the influence of the microstructure of adsorbed polymer layers on particles and their interactions in the dispersing medium on the stability of suspension. Then two different stable states and two different unstable states for 3Y-TZP suspension were given. Accordingly, the (Cw, η), (Cw, ϕ), and (ϕ, η) two-parameter, and (Cw, ϕ, η) three-parameter stability maps were constructed. Based on the DLVO theory calculations, the dispersant concentration, particle distance (r), and interparticle potential energy (V $_{ T }$) maps with various solids loading for 3Y-TZP aqueous suspension were also constructed. In (Cw, r) two-parameter coordinate system, the stable motion region map for particles was established. The Cw, ϕ, and V $_{ T,max}$ (the highest potential energy) surface of the potential barrier map was obtained through calculation and simulation on the basis of the surfaces of Cw, r, V $_{ T }$ maps introduced above. The (Cw, ϕ) two-parameter stability map was then obtained from the Cw, ϕ, V $_{ T,max}$ map. The results showed that this theoretical map can qualitatively prove the experimentally obtained results—the existence of different dispersed states of particles in suspension system and the variation tendency of suspension stability with changing each parameter—were reasonable.
Starting Page	547
Ending Page	568
Page Count	22
File Format	PDF
ISSN	10069321
Journal	Science in China Series E: Technological Sciences
Volume Number	49
Issue Number	5
e-ISSN	1862281X
Language	English
Publisher	Science in China Press
Publisher Date	2006-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	3Y-TZP suspension stability DLVO theory interparticle potential energy Engineering
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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