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Title: Apparatus for pneumatic shuttering of an aerosol particle stream

Abstract

The invention provides pneumatic shuttering of a focused or collimated aerosol particle stream. The aerosol stream can be collimated by an annular sheath of inert or non-inert gas. The apparatus propagates a sheathed aerosol stream through a series of aerodynamic lenses along the axis of a flow cell. The final lens is typically positioned above a substrate, so that direct material deposition is provided. A substantially perpendicularly-flowing gas external to the aerodynamic lens system is used to redirect the particle stream away from the flow axis and through an exhaust port, thereby shuttering the collimated aerosol stream. The pneumatic shutter enables printing of discreet structures, with on/off shuttering times of approximately 1 to 100 milliseconds.

Inventors:
; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1478745
Patent Number(s):
10058881
Application Number:
15/443,867
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B41 - PRINTING B41J - TYPEWRITERS
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS
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DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017 Feb 27
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Keicher, David M., Cook, Adam, Baldonado, Eloy Phillip, and Essien, Marcelino. Apparatus for pneumatic shuttering of an aerosol particle stream. United States: N. p., 2018. Web.
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Keicher, David M., Cook, Adam, Baldonado, Eloy Phillip, & Essien, Marcelino. Apparatus for pneumatic shuttering of an aerosol particle stream. United States.
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Keicher, David M., Cook, Adam, Baldonado, Eloy Phillip, and Essien, Marcelino. Tue . "Apparatus for pneumatic shuttering of an aerosol particle stream". United States. https://www.osti.gov/servlets/purl/1478745.
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@article{osti_1478745,
title = {Apparatus for pneumatic shuttering of an aerosol particle stream},
author = {Keicher, David M. and Cook, Adam and Baldonado, Eloy Phillip and Essien, Marcelino},
abstractNote = {The invention provides pneumatic shuttering of a focused or collimated aerosol particle stream. The aerosol stream can be collimated by an annular sheath of inert or non-inert gas. The apparatus propagates a sheathed aerosol stream through a series of aerodynamic lenses along the axis of a flow cell. The final lens is typically positioned above a substrate, so that direct material deposition is provided. A substantially perpendicularly-flowing gas external to the aerodynamic lens system is used to redirect the particle stream away from the flow axis and through an exhaust port, thereby shuttering the collimated aerosol stream. The pneumatic shutter enables printing of discreet structures, with on/off shuttering times of approximately 1 to 100 milliseconds.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {8}
}
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