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Title: Apparatus for pneumatic shuttering of an aerosol particle stream

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:
OSTI Identifier:
1478745
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM) SNL-A
Patent Number(s):
10,058,881
Application Number:
15/443,867
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2017 Feb 27
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Works referenced in this record: