Paper Number
CS28                         My Program 

Session
Colloidal Suspensions and Granular Materials

Title
Teaching thixotropy and elastoviscoplastic materials

Presentation Date and Time
October 21, 2025 (Tuesday) 3:45

Track / Room
Track 1 / Sweeney Ballroom A

Authors (Click on name to view author profile)

  1. Macosko, Christopher W. (University of Minnesota, Chemical Engineering and Materials Science)
  2. Ewoldt, Randy H. (University Of Illinois Urbana-champaign, Mechanical Science and Engineering)
  3. McKinley, Gareth H. (Massachusetts Institute of Technology, Mechanical Engineering)

Author and Affiliation Lines (in printed abstract book)
Christopher W. Macosko1, Randy H. Ewoldt2 and Gareth H. McKinley3
1Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455; 2Mechanical Science and Engineering, University Of Illinois Urbana-champaign, Urbana, IL 61801; 3Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139

Speaker / Presenter 
Macosko, Christopher W.

Keywords
additve manufacturing; colloids; emulsions; granular materials; particualte systems; suspensions

Text of Abstract
At the SoR meeting in Chicago 2022 we proposed to add a new chapter on thixotropy to our 2nd edition of Macosko’s rheology text. At that meeting and since we have distilled the vast complexity of observables and approaches to thixotropy. We have now completed that chapter, which we feel compactly teaches students and industrial practitioners the essential features of what we refer to as thixotropic elastoviscoplastic (TEVP) materials. We will share an outline of what we have written and test driven in recent short courses and in two university classes.