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Record Details

Record 27 of 2428
High Temperature Piezoelectric Drill
External Online Source: hdl:2014/44652
Author and Affiliation:
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)
Abstract: The 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.
Publication Date: Mar 08, 2009
Document ID:
20150008435
(Acquired May 22, 2015)
Subject Category: LUNAR AND PLANETARY SCIENCE AND EXPLORATION; MECHANICAL ENGINEERING
Document Type: Conference Paper
Meeting Information: SPIE Conference on Smart Structures and Materials; 8-12 Mar. 2009; San Diego, CA; United States
Meeting Sponsor: International Society for Optical Engineering; Bellingham, WA, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: PIEZOELECTRICITY; PIEZOELECTRIC CERAMICS; DRILLS; VENUS (PLANET); PIEZOELECTRIC TRANSDUCERS; FEASIBILITY ANALYSIS; FINITE ELEMENT METHOD; DRILL BITS; CAPACITANCE; ROCKS; IN SITU MEASUREMENT; HIGH TEMPERATURE ENVIRONMENTS
Other Descriptors: ROCK SAMPLING; VENUS
Availability Source: Other Sources
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