izpis_h1_title_alt

Process parameters for FFF 3D-printed conductors for applications in sensors
Barši Palmić, Tibor (Author), Slavič, Janko (Author), Boltežar, Miha (Author)

.pdfPDF - Presentation file, Download (24,84 MB)
URLURL - Source URL, Visit https://www.mdpi.com/1424-8220/20/16/4542 This link opens in a new window

Abstract
With recent developments in additive manufacturing (AM), new possibilities for fabricating smart structures have emerged. Recently, single-process fused-filament fabrication (FFF) sensors for dynamic mechanical quantities have been presented. Sensors measuring dynamic mechanical quantities, like strain, force, and acceleration, typically require conductive filaments with a relatively high electrical resistivity. For fully embedded sensors in single-process FFF dynamic structures, the connecting electrical wires also need to be printed. In contrast to the sensors, the connecting electrical wires have to have a relatively low resistivity, which is limited by the availability of highly conductive FFF materials and FFF process conditions. This study looks at the Electrifi filament for applications in printed electrical conductors. The effect of the printing-process parameters on the electrical performance is thoroughly investigated (six parameters, >40 parameter values, >200 conductive samples) to find the highest conductivity of the printed conductors. In addition, conductor embedding and post-printing heating of the conductive material are researched. The experimental results helped us to understand the mechanisms of the conductive network's formation and its degradation. With the insight gained, the optimal printing strategy resulted in a resistivity that was approx. 40% lower than the nominal value of the filament. With a new insight into the electrical behavior of the conductive material, process optimizations and new design strategies can be implemented for the single-process FFF of functional smart structures.

Language:English
Keywords:additive manufacturing, material extrusion, fused-filament fabrication, polymer nanocomposite, process parameters, conductive filament
Work type:Article (dk_c)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2020
Number of pages:Str. 1-21
Numbering:Vol. 20, iss. 16
UDC:621.9.04 (045)
ISSN on article:1424-8220
DOI:10.3390/s20164542 Link is opened in a new window
COBISS.SI-ID:25461251 Link is opened in a new window
License:CC BY 4.0
This work is available under this license: Creative Commons Attribution 4.0 International
Views:164
Downloads:290
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Record is a part of a journal

Title:Sensors
Shortened title:Sensors
Publisher:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0263
Name:Mehanika v tehniki

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J2-1730
Name:Polno zaznavanje prostorskih vibracij s hitro kamero z aplikacijami v digitalnih dvojčkih in oddaljenem zaznavanju

Secondary language

Language:Slovenian
Keywords:aditivne tehnologije, 3d tisk z ekstruzijo materiala, polimerni nanokompoziti, procesni parametri, prevodni filamenti

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back