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High Temperature Piezoelectric DrillThe current NASA Decadal mission planning effort has identified Venus as a significant scientific target for a surface in-situ sampling/analyzing mission. The Venus environment represents several extremes including high temperature (460 deg C), high pressure (~9 MPa), and potentially corrosive (condensed sulfuric acid droplets that adhere to surfaces during entry) environments. This technology challenge requires new rock sampling tools for these extreme conditions. Piezoelectric materials can potentially operate over a wide temperature range. Single crystals, like LiNbO3, have a Curie temperature that is higher than 1000 deg C and the piezoelectric ceramics Bismuth Titanate higher than 600 deg C. A study of the feasibility of producing piezoelectric drills that can operate in the temperature range up to 500 deg C was conducted. The study includes the high temperature properties investigations of engineering materials and piezoelectric ceramics with different formulas and doping. The drilling performances of a prototype Ultrasonic/Sonic Drill/Corer (USDC) using high temperate piezoelectric ceramics and single crystal were tested at temperature up to 500 deg C. The detailed results of our study and a discussion of the future work on performance improvements are presented in this paper.
Document ID
20150008435
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Bao, Xiaoqi
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Scott, James
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Boudreau, Kate
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bar-Cohen, Yoseph
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sherrit, Stewart
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Badescu, Mircea
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Shrout, Tom
(Pennsylvania State Univ. University Park, PA, United States)
Zhang, Shujun
(Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
May 19, 2015
Publication Date
March 8, 2009
Subject Category
Mechanical Engineering
Lunar And Planetary Science And Exploration
Meeting Information
Meeting: SPIE Conference on Smart Structures and Materials
Location: San Diego, CA
Country: United States
Start Date: March 8, 2009
End Date: March 12, 2009
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
rock sampling
Venus

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