Study of mechanisms for vapor-induced puffing of starch-rich materials

Solids puff when unbalanced forces exerted by vapor and gas in pores exceed the yield strength of solid surrounding the pores. Pressures increase as temperature rise; and matrix yield strength and flow resistance decrease. Expansion triggered by losses of matrix strength due to melting and glass-rub...

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Bibliographic Details
Main Author: Wu, Po-ching Johnny
Language:ENG
Published: ScholarWorks@UMass Amherst 1991
Subjects:
Online Access:https://scholarworks.umass.edu/dissertations/AAI9120956