Development of 3D Printable Ceramic Nano-Paste and Associated Ceramic 3D Printer for Manufacturing and Testing of High-Performance Ceramic Nanocomposites

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dc.contributor.advisorNejhad, Mehrdad
dc.contributor.authorMeyer, Liam
dc.contributor.departmentMechanical Engineering
dc.date.accessioned2024-10-09T23:45:26Z
dc.date.issued2024
dc.description.degreeM.S.
dc.embargo.liftdate2026-10-08
dc.identifier.urihttps://hdl.handle.net/10125/108638
dc.subjectMechanical engineering
dc.titleDevelopment of 3D Printable Ceramic Nano-Paste and Associated Ceramic 3D Printer for Manufacturing and Testing of High-Performance Ceramic Nanocomposites
dc.typeThesis
dcterms.abstractThis thesis presents a comprehensive research on the development of Ceramic Nano-Pastes (CNPs) and their applications in the manufacturing of high-performance ceramic nanocomposite parts via injection molding and 3D printing. A commercially available Liquid Deposition Modeling (LDM) 3D Printer is modified to 3D Print a specially formulated CNP with minimum shrinkage, and surface and internal flaws while maintaining optimal printability. This study also introduces the development of a Laboratory-Scale Roll-to-Roll (R2R) CNP Prepregging System aimed to automate the process of prepregging fiber fabrics. The mechanical properties of parts produced by both the Modified 3D Printer and the Laboratory-Scale Roll-to-Roll (R2R) CNP Prepregging System are assessed using ASTM four-point bending tests for Ceramic Matrix Composites (CMCs) and Continuous Fiber Ceramic Composites (CFCCs), with results benchmarked against traditional manufacturing methods. Results indicate that the Injection Molding and 3D Printing ASTM samples manufactured employing CNPs show comparable and in some cases superior qualities when compared to a part manufactured through Compaction Molding, (i.e., a more traditional method to produce these ceramic composites parts made from similar CNP compositions). Although a 24--meter- long roll of CNP-based prepregged carbon fiber fabric was successfully produced from the automated R2R system, its quality reveals potentials for improvements. The Continuous Fiber Ceramic Composites (CFCCs) derived from this R2R ceramic composite prepreg contained a reduced fiber volume fraction (i.e., a higher matrix volume fraction), due to the oversaturation of the fabric, resulting in lower performance when compared with those made by the traditional manual/hand wet layup technique, indicating rooms for further optimizations to produce parts with improved qualities, properties, and performances.
dcterms.extent179 pages
dcterms.languageen
dcterms.publisherUniversity of Hawai'i at Manoa
dcterms.rightsAll UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.typeText
local.identifier.alturihttp://dissertations.umi.com/hawii:12290

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M.S. - Mechanical Engineering