Skip to Main Content
 

Global Search Box

 
 
 

ETD Abstract Container

Abstract Header

Additive Manufacturing Processes for High-Performance Ceramics: Manufacturing - Mechanical and Thermal property Relationship

Mummareddy, Bhargavi
http://orcid.org/0000-0001-8588-8341
http://rave.ohiolink.edu/etdc/view?acc_num=ysu1629131959379597

Abstract Details

2021, Doctor of Philosophy in Materials Science and Engineering, Youngstown State University, Department of Civil/Environmental and Chemical Engineering.
High Performance Ceramics materials (HPC’s) have been of great interest in the industrial sector due to their superlative qualities such as lightweight, high mechanical and ablation properties, corrosion resistance, wear, and thermal resistances in harsh environments. The current aerospace, automotive, and maritime sectors require complex ceramic structures in applications related to propulsion engines, re-entry vehicles, heat engines, turbine components, high pressure injection systems, bearings, clutches, and actuators among many others. Despite their exceptional qualities, advanced ceramic structures require laborious work and expenses for their fabrication via conventional methods such as pressing and extrusion. Additionally, actual structural requirements are based on intricate configurations. The use of Additive Manufacturing has become a promising technology that could satisfy these requirements by producing complex structural components with tailored performance. This present work has studied the 3D printing process of HPCs, as well as their mechanical, thermal, and physical properties. Here, a Vat Polymerization (VPP), Binder Jet Printing (BJP) and Material Jetting (MJ) additive manufacturing technologies were used to produce HPCs. The structure-property-processing relationship of silica, zirconia and aluminosilicates was investigated. A detailed study of the individual post-processing conditions and effects was incorporated in this research program to produce mechanically robust structures. The present work aims to provide a scientific and engineering platform to optimize the 3D printing and post-processing stages of ceramic materials. The diffusion kinetics mechanism of post processed ceramics printed via VPP at near fusion temperature were optically and theoretically investigated. An optical analysis of the manufactured samples assisted the understanding of the fusion process of the ceramic particles before and after sintering to produce near dense parts. Lastly, this program presents the conclusions observed in this work.
Pedro Cortes, PhD (Advisor)
Eric MacDonald, PhD (Committee Member)
Timothy Wagner, PhD (Committee Member)
Virgil Solomon, PhD (Committee Member)
Holly Martin, PhD (Committee Member)
232 p.
Aerospace Materials; Automotive Materials; Civil Engineering; Materials Science; Mechanical Engineering
Ceramics; Binder Jetting Printing; Material Jetting; Additive Manufacturing; Vat Photo Polymerization

Recommended Citations

Citations

  • Mummareddy, B. (2021). Additive Manufacturing Processes for High-Performance Ceramics: Manufacturing - Mechanical and Thermal property Relationship [Doctoral dissertation, Youngstown State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1629131959379597

    APA Style (7th edition)

  • Mummareddy, Bhargavi. Additive Manufacturing Processes for High-Performance Ceramics: Manufacturing - Mechanical and Thermal property Relationship. 2021. Youngstown State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ysu1629131959379597.

    MLA Style (8th edition)

  • Mummareddy, Bhargavi. "Additive Manufacturing Processes for High-Performance Ceramics: Manufacturing - Mechanical and Thermal property Relationship." Doctoral dissertation, Youngstown State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1629131959379597

    Chicago Manual of Style (17th edition)

ysu1629131959379597
317
© 2021, all rights reserved.
This open access ETD is published by Youngstown State University and OhioLINK.