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Investigating interactions and aggregate structures of boehmite particles toward understanding of bulk rheology


EMSL Project ID
50143

Abstract

The aim of the proposed research is to understand unique particle interactions in tank waste relevant systems from chemical physics at solid-liquid interfaces, and to determine how those interactions influence long-range ordering (agglomeration) of colloidal waste particles and bulk suspension rheology. Specifically, we will study particle interactions moderated by solvation/hydration forces, in colloidal suspensions at conditions relevant to Hanford tank wastes (high pH, high-ionic strength), evaluate the consequence of those interactions on agglomerate structure and bulk rheology, and develop computational models that allow prediction of measured aggregate structures and bulk rheology from first principles or through experimentally accessible measurements.

Project Details

Start Date
2018-01-26
End Date
2018-09-30
Status
Closed

Team

Principal Investigator

Jaehun Chun
Institution
Pacific Northwest National Laboratory

Team Members

Xiao-Ying Yu
Institution
Oak Ridge National Laboratory

Dongsheng Li
Institution
Pacific Northwest National Laboratory

Timothy Droubay
Institution
Pacific Northwest National Laboratory