Experimental Analysis and Material Characterization of Ultra High Temperature Composites
Authors
Ghoshal, Anindya
Walock, Michael J.
Nieto, Andy
Murugan, Muthuvel
Hofmeister-Mock, Clara
Pepi, Marc
Bravo, Luis
Wright, Andrew
Luo, Jian
Subjects
Advisors
Date of Issue
2021-06-11
Date
June 7-11, 2021
Publisher
ASME
Language
Abstract
Ultra high temperature ceramic (UHTC) materials have attracted attention for hypersonic applications. Currently there is significant interest in possible gas turbine engine applications of UHTC composites as well. However, many of these materials, such as hafnium carbide, zirconium carbide, and zirconium diboride, have significant oxidation resistance and toughness limitations. In addition, these materials are very difficult to manufacture because of their high melting points. In many cases, SiC powder is incorporated into UHTCs to aid in processing and to enhance fracture toughness. This can also improve the materials’ oxidation resistance at moderately high temperatures due to a crack-healing borosilicate phase. ZrB₂-SiC composites show very good oxidation resistance up to 1700 °C, due to the formation of SiO₂ and ZrO₂ scales in numerous prior studies. While this may limit its application to hypersonic applications (due to reduced thermal conductivity and oxidation resistance at higher temperatures), these UHTC-SiC composites may find applications in turbomachinery, as either stand-alone parts or as a component in a multi-layer system.
Type
Conference Paper
Description
Proceedings of ASME Turbo Expo 2021
Turbomachinery Technical Conference and Exposition
GT2021
Series/Report No
Department
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
This research was supported in part by an appointment to the Postdoctoral Research Participation Program at the U.S. Army Research Laboratory administered by the Oak Ridge Associated Universities through an interagency agreement between the U.S. Department of Energy and DEVCOM ARL. Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement Number W911NF-16-2-0008. The first author would like to acknowledge the support of DoD Laboratory University Collaborative Initiative (LUCI) Fellowship [2016-2019]. The UHTC specimen fabrication via Spark Plasma Sintering processing was done at UCSD by UCSD and DEVCOM ARL. The ablation experimental testing was conducted at DEVCOM ARL. The microstructure analysis and characterization were performed at NPS.
Funder
W911NF-16-2-0008
Format
12 p.
Citation
Ghoshal, A., Walock, M. J., Nieto, A., Murugan, M., Hofmeister-Mock, C., Pepi, M., ... & Luo, J. (2021, June). Experimental Analysis and Material Characterization of Ultra High Temperature Composites. In Turbo Expo: Power for Land, Sea, and Air (Vol. 84997, p. V006T02A010). American Society of Mechanical Engineers.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.