Tailoring thermal interfaces with nanomaterials
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Authors
Seshadri, Indira
Issue Date
2015-05
Type
Electronic thesis
Thesis
Thesis
Language
ENG
Keywords
Mechanical engineering
Alternative Title
Abstract
A forty-fold thermal conductivity increase is obtained by in situ welding of silver nanowire fillers inside polydimethylsiloxane using microwaves. Even for ≤ 0.04 filler volume fractions, welding facilitates nanowire networking that counteracts thermal transport bottlenecks associated with the low polymer thermal conductivity and high polymer-filler interface thermal resistances. The transparency of the polymer to microwaves precludes thermal degradation, and the composites retain high mechanical compliance as indicated by < 1 MPa viscoelastic storage moduli. These findings would be instrumental for controllably realizing high thermal conductivity conformal polymer composites for thermal interface applications.
Description
May 2015
School of Engineering
School of Engineering
Full Citation
Publisher
Rensselaer Polytechnic Institute, Troy, NY