@inproceedings{7777dafe898c452b91c8e4bbd51762af,
title = "Ultrasonic/sonic drill for high temperature application",
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.",
author = "Xiaoqi Bao and Yoseph Bar-Cohen and James Scott and Stewart Sherrit and Scott Widholm and Mircea Badescu and Tom Shrout and Beth Jones",
year = "2010",
month = mar,
day = "25",
doi = "10.1117/12.847456",
language = "English (US)",
isbn = "9780819480620",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
booktitle = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010",
address = "United States",
note = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010 ; Conference date: 08-03-2010 Through 11-03-2010",
}