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Record Details

Record 28 of 61041
Electric Field Containerless Processing Technology
Offline Availability: Go to Request Form
Author and Affiliation:
Elleman, D. D.(Bjorksten Research Labs., Inc., Madison, WI, United States)
Rhim, W. K.(Bjorksten Research Labs., Inc., Madison, WI, United States)
Abstract: The objective of this task is to develop the science and technology base required to design and construct a high temperature electric field positioning module that could be used by materials scientists to conduct containerless science experiments in a low gravity environment. Containerless science modules that employ electric fields to position and manipulate samples offer several advantages over acoustic or electromagnetic systems. The electric field system will operate not only at atmospheric pressures but also in a vacuum, in contrast to the acoustic modules which can only operate in atmosphere where the acoustic forces are sufficient. The electric field technique puts minimum energy into the sample, whereas the electromagnetic system can deposit energy into the sample through eddy current heat as well as physical mixing in the sample. Two types of electric field modules have been constructed and tested to date. One employs a charged sample and uses electrostatic forces to position and control the sample. The second type of module induces electrical polarization of the sample and electric field gradients to position and control the sample.
Publication Date: May 01, 1985
Document ID:
19860000703
(Acquired Nov 04, 1995)
Accession Number: 86N10170
Subject Category: ASTRONAUTICS (GENERAL)
Document Type: Technical Report
Publication Information: NASA, Washington Microgravity Sci. and Appl. Program Tasks; p 195
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Bjorksten Research Labs., Inc.; Madison, WI, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CONTAINERLESS MELTS; ELECTRIC FIELDS; ELECTROSTATICS; POLARIZATION; SPACE PROCESSING; ACOUSTIC LEVITATION; ELECTROMAGNETIC FIELDS; MICROGRAVITY APPLICATIONS; PARABOLIC FLIGHT; SPACE COMMERCIALIZATION; SPACE MANUFACTURING
Imprint And Other Notes: In NASA, Washington Microgravity Sci. and Appl. Program Tasks p 195 (SEE N86-10053 01-12)
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