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Active Cooling of a Microvascular Shape Memory Alloy‐Polymer Matrix Composite Hybrid Material
Author(s) -
Coppola Anthony M.,
Hu Liangfa,
Thakre Piyush R.,
Radovic Miladin,
Karaman Ibrahim,
Sottos Nancy R.,
White Scott R.
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600020
Subject(s) - materials science , composite number , alloy , shape memory alloy , composite material , matrix (chemical analysis) , polymer , metal matrix composite , metallurgy
Microvascular shape memory alloy (SMA)‐polymer matrix composite (PMC) hybrid materials are fabricated using the Vaporization of Sacrificial Components (VaSC) technique. Two types of sacrificial materials are used: Mg wires in the SMA (nickel titanium) and poly(lactic acid)/tin(II) oxalate fibers in the PMC (glass fiber/epoxy). These sacrificial materials survive the initial solidification of the host materials, then are vaporized during a final thermal treatment to reveal the vascular network. The effect of VaSC on composition and transformation temperatures of the SMA are examined. Active cooling through the vascular network maintains temperature in the PMC below the glass transition temperature (152 °C) at heat fluxes as high as 300 kW m −2 , while this temperature is exceeded without cooling at just 10 kW m −2 .