Ultrasonic/sonic drill for high temperature application

Xiaoqi Bao; Yoseph Bar-Cohen; James Scott; Stewart Sherrit; Scott Widholm; Mircea Badescu; Tom Shrout; Beth Jones

doi:10.1117/12.847456

1 April 2010 Ultrasonic/sonic drill for high temperature application

Xiaoqi Bao, Yoseph Bar-Cohen, James Scott, Stewart Sherrit, Scott Widholm, Mircea Badescu, Tom Shrout, Beth Jones

Author Affiliations +

Proceedings Volume 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010; 764739 (2010) https://doi.org/10.1117/12.847456
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Venus is one of the many significant scientific targets for NASA. New rock sampling tools with the ability to be operated at high temperatures of the order of 460°C are required for surface in-situ sampling/analysis missions. Piezoelectric materials such as LiNbO3 crystals and Bismuth Titanate are potentially operational at the temperature range found on the surface of Venus. A study of the feasibility of producing piezoelectric drills for a temperature up to 500°C was conducted. The study includes investigation of the high temperature properties of piezoelectric crystals and ceramics with different formulas and doping. Several prototypes of Ultrasonic/Sonic Drill/Corers (USDC) driven by transducers using the high temperate piezoelectric ceramics and single LiNbO3 crystal were fabricated. The transducers were analyzed by scanning the impedance at room temperature and 500°C under both low and high voltages. The drilling performances were tested at temperature up to 500°C. Preliminary results were previously reported [Bao et al, 2009]. In this paper, the progress is presented and the future works for performance improvements are discussed.

Citation Download Citation

Xiaoqi Bao, Yoseph Bar-Cohen, James Scott, Stewart Sherrit, Scott Widholm, Mircea Badescu, Tom Shrout, and Beth Jones "Ultrasonic/sonic drill for high temperature application", Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 764739 (1 April 2010); https://doi.org/10.1117/12.847456

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