Extreme Environments

Dr. Singh and his research group focus on high temperature testing, characterization and quantification of time-dependent degradation behavior of materials for extreme environment. The present thrust is primarily on ceramics and ceramic matrix composites with application to hypersonic vehicles. Some of the key test capabilities include thermal-plasma testing in vacuum environment, elevated temperature mechanical testing, and one-sided thermal shock/exposure tests. Tests can be performed at temperatures above 1200°C. Dr. Singh’s past and present research sponsors include Spirit AeroSystems, Inc., NASA, National Institute for Aviation Research and U.S. Army.

1316 C tensile test with strain measurement
1316°C (2400°F) tensile test with strain measurement

Publications

  • B. Ortega, B. Kitt, A. K. Singh, K. Kahle, K. Lee, D. Villaflor and Z. Benedict, "Thermal shock effects on the impact resistance, tolerance and flexural strength of alumina based oxide/oxide ceramic matrix composites," in Ceramics International, vol. 48, no. 3, pp. 3544-3553, 2022.

  • A. K. Singh, K. Kahle, H. James, A. L. Horner, D. Villaflor and Z. Benedict, "Environmental effects on the strength and impact damage resistance of alumina based oxide/oxide ceramic matrix composites," in Ceramics International, vol. 47, no. 12, pp. 17268-17275, 2021.

  • R. A. Kemnitz, G. R. Cobb, A. K. Singh and C. R. Hartsfield, "Characterization of Simulated Low Earth Orbit Space Environment Effects on Acid-spun Carbon Nanotube Yarns," in Materials and Design, vol. 182, p. 107978, 2019.

  • A. Singh and S. Mall, "Tensile and fatigue behavior of oxide/oxide ceramic matrix composite with simulated foreign object damage in combustion environment," in International Journal of Applied Ceramic Technology, vol. 15, no. 1, pp. 16-27, 2018.

  • A. K. Singh, H. E. Misak and S. Mall, “Effects of UVB Light Exposure on Tensile Behavior of Carbon Nanotube Sheet,” in Journal of Nanoscience and Nanotechnology, vol. 18, no. 3, pp. 2079-2084, 2018.

  • A. K. Singh, V. Sabelkin and S. Mall, “Creep-Rupture Behavior of Notched Oxide/Oxide Ceramic Matrix Composite in Combustion Environment,” in Advances in Applied Ceramics, vol. 117, no. 1, pp. 30-41, 2017.

  • A. K. Singh, V. Sabelkin and S. Mall, “Fatigue Behavior of Double-Edge Notched Oxide/Oxide Ceramic Matrix Composite in a Combustion Environment,” in Journal of Composite Materials, vol. 51, no. 26, pp. 3669-3683, 2017.

 
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