A rheological model for particulate ceramic slurries at low temperatures
- Univ. of Delaware, Newark, DE (United States). Center for Composite Materials
Ceramic particulate reinforced metal- and ceramic-matrix composites are increasingly being used in a wide range of applications in the electronics packaging, automotive and aerospace industries. This article presents an empirical correlation for the viscosity of particulate ceramic slurries in terms of the viscosity of the suspension medium, [mu][sub o], volume fraction of the solids in the slurry, [phi], shear rate, [gamma], and slurry temperature, T[sub sl]. The correlation was obtained from extensive rheological characterization of silicon carbide (SiC) slurry formulations, and is based on physical consistency validations. The proposed rheological model is valid over the range of shear rates between 6 and 96 sec[sub [minus]1], solids loading up to approximately 70 percent, and slurry temperatures between 0 and 25 C. The model predictions are shown to be in good agreement with the experimental data.
- OSTI ID:
- 6145316
- Journal Information:
- Scripta Metallurgica et Materialia; (United States), Vol. 29:8; ISSN 0956-716X
- Country of Publication:
- United States
- Language:
- English
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