The Critical Effect of Mixing and Batch Temperature in Thermoset Ceramic Injection Molding

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2016-09

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New York State College of Ceramics at Alfred University. Kazuo Inamori School of Engineering.

Abstract

Injection molding is a common industrial process used to create near-net shaped ceramic parts. In today’s industry, it is most common for injection molding batches to use thermoplastic binder systems; however the advantages seen with the use of thermosetting binders still makes them an attractive alternative. It was proposed that ideal rheology of injection molding systems could be better predicted with the development of a rheological process control diagram (RPCD). A series of suspensions were prepared and then analyzed using a rheometer with the intention of mapping out their behavior as a function of rheological parameters to allow for prediction of material performance. Lack of repeatability in the data has led to the new hypothesis that mixing and batch temperature are more vital parameters than was previously suspected. It is now proposed that rheological behavior is more highly controlled by a combination of mixing and temperature, rather than the batch composition itself.

Description

Advisory committee members: Matthew Hall, Seong-Jin Lee. Dissertation completed in partial fulfillment of the requirements for the degree of Masters of Science in Materials Science and Engineering at the Kazuo Inamori School of Engineering, New York State College of Ceramics at Alfred University

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