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Title: Dielectric breakdown of additively manufactured polymeric materials

Dielectric strength testing of selected Polyjet-printed polymer plastics was performed in accordance with ASTM D149. This dielectric strength data is compared to manufacturer-provided dielectric strength data for selected plastics printed using the stereolithography (SLA), fused deposition modeling (FDM), and selective laser sintering (SLS) methods. Tested Polyjet samples demonstrated dielectric strengths as high as 47.5 kV/mm for a 0.5 mm thick sample and 32.1 kV/mm for a 1.0 mm sample. As a result, the dielectric strength of the additively manufactured plastics evaluated as part of this study was lower than the majority of non-printed plastics by at least 15% (with the exception of polycarbonate).
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. Kirtland AFB, Albuquerque, NM (United States). Air Force Research Lab.
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-15-25933
Journal ID: ISSN 1070-9878
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Dielectrics and Electrical Insulation
Additional Journal Information:
Journal Volume: 22; Journal Issue: 6; Journal ID: ISSN 1070-9878
Publisher:
IEEE
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOD; USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; material science; rapid prototyping; dielectric breakdown; plastics; dielectric materials; dielectric measurements; dielectric strength; additive manufacturing; SLA; polyjet; fused deposition modeling; FDM; SLS
OSTI Identifier:
1329891