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Caitlin Grover_DissertationComplete_v2
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Dissertation
Material-Process-Structure-Property Relationships for Direct-Ink-Writing of Polymer Composite-type Precursors
Doctor of Philosophy (PhD), Washington State University
2025
Abstract
Polymer composite-type precursors hold exceptional promise in the manufacturing of polymers, ceramics, metals, and their composites due to their simplicity, processibility, and tunable rheological properties. These precursors cover a large compositional space with markedly varying rheology; thus these precursors can be used in a large variety of manufacturing methods, including direct-ink-writing (DIW). Several complexities lie within DIW, including the complex flow mechanisms governing structural evolution during the process, which are influenced by material composition and printing nozzle geometry. Our approach to understanding these mechanisms is generalizing composition-rheology relationships, which is foundational to precursor design, then implementing a multimodal rheological model to elucidate wall slip and shear flow contributions to ink flow. Additionally, understanding final part properties is paramount to creating a robust part, so material characterization efforts were made to study the compositional evolution through pyrolysis and sintering of these precursors and the effects on mechanical properties.
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Details
- Title
- Material-Process-Structure-Property Relationships for Direct-Ink-Writing of Polymer Composite-type Precursors
- Creators
- Caitlin Ann Grover
- Contributors
- B. Arda Gozen (Advisor)Scott P. Beckman (Advisor)Irmak Sargin (Committee Member)Katie Zhong (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- School of Mechanical and Materials Engineering
- Theses and Dissertations
- Doctor of Philosophy (PhD), Washington State University
- Number of pages
- 194
- Identifiers
- 99901357896901842
- Language
- English
- Resource Type
- Dissertation