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Rogenski FINAL 12 16 2021 with cert.pdf (3.3 MB)

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The Investigation of AM Ceramics for the Production of a 3D Printed High Temperature Thermocouple

Rogenski, Eleanore Nicole
http://orcid.org/0000-0002-0209-2960
http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639749480792205

Abstract Details

2021, Master of Science in Engineering, Youngstown State University, Department of Civil/Environmental and Chemical Engineering.
Ceramic materials possess many favorable properties such as heat resistivity, low dielectric profiles, and high resistance to corrosion, which makes them attractive materials in the aerospace, automotive, microelectronic, and biomedical industries. Ceramics can be produced using several additive manufacturing technologies. This thesis discusses the fabrication of porous, brittle ceramics through Vat Photopolymerization and Binder Jetting Printing processes. The materials investigated in this work include silicon dioxide, produced via stereolithography; aluminum oxide manufactured through digital light processing; and alumina silicate printed using binder jetting technology. Through post-processing procedures including curing and sintering, the 3D printed ceramic parts showed significant improvement in their densities and flexural strength. The relative densities of the SLA silica material nearly doubled from 40.3% in the green state to 79.24% in the sintered state. Further improvement in density was seen for the DLP alumina samples, where the relative density of the sintered alumina (86.58%) was five times higher than the relative density of the green body alumina samples (17.2%). The BJP alumina silicate samples also showed a considerable improvement in density through the sintering process, with the green body parts exhibiting a relative density of 13.9% and a sintered density of 43.9%. The flexural strengths for the green body silica, alumina, and alumina silicate samples were recorded as 26.14, 3.5, and 41.91 MPa, respectively. The flexural strengths improved after sintering of the ceramics. The sintered silica, alumina, and alumina silicate specimens measured flexural strengths of 54.71, 8.1, and 72.5 MPa, respectively. Using the 3D printed ceramics, a high temperature sensor was here fabricated. The 3D printed sensor was fashioned with two dissimilar conductive pastes embedded between overmolded ceramic substrates. The sensor accurately measured temperatures exceeding 500°C, and proved to record consistent temperature readings during the testing. Future improvements to the sensor can result in a highly sophisticated and customized, fully 3D printed high temperature sensor.
Pedro Cortes, PhD (Advisor)
Eric MacDonald, PhD (Committee Member)
Vamsi Borra, PhD (Committee Member)
102 p.
Chemical Engineering
Ceramics; Additive manufacturing

Recommended Citations

Citations

  • Rogenski, E. N. (2021). The Investigation of AM Ceramics for the Production of a 3D Printed High Temperature Thermocouple [Master's thesis, Youngstown State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639749480792205

    APA Style (7th edition)

  • Rogenski, Eleanore. The Investigation of AM Ceramics for the Production of a 3D Printed High Temperature Thermocouple. 2021. Youngstown State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639749480792205.

    MLA Style (8th edition)

  • Rogenski, Eleanore. "The Investigation of AM Ceramics for the Production of a 3D Printed High Temperature Thermocouple." Master's thesis, Youngstown State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1639749480792205

    Chicago Manual of Style (17th edition)

ysu1639749480792205
116
© 2021, all rights reserved.
This open access ETD is published by Youngstown State University and OhioLINK.