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Polymer nanofiber based continuous metal phase composite for thermal management applications

Björn Carlberg (Institutionen för mikroteknologi och nanovetenskap, Bionanosystem) ; Johan Liu (Institutionen för mikroteknologi och nanovetenskap, Bionanosystem) ; L. Ye
3rd Electronics System Integration Technology Conference, ESTC 2010; Berlin; Germany; 13 September 2010 through 16 September 2010 p. Art. no. 5642950. (2010)
[Konferensbidrag, refereegranskat]

A new composite design approach for thermal interface materials is presented. A porous electro spun nanofiber network composed of temperature stable poly imide was infiltrated with liquid phase indium at a pressure of 30 MPa. The polymer phase defmes composition and geometry, while the continuous metal phase gives binding to surfaces and high thermal conductivity. The composite was characterized by assembly of tri-layer copper/TIM/copper sandwich structures and subsequent xenon flash measurements extracting the thermal properties of the intermediate TIM layer. The interfacial contact resistance was found to be 8 Kmm2/W and the thermal conductivity was 28 W/mK, indicating the potential for use in thermal management applications.



Denna post skapades 2015-05-04.
CPL Pubid: 216322

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Bionanosystem (2007-2015)

Ämnesområden

Textil-, gummi- och polymermaterial
Nanoteknik

Chalmers infrastruktur