Accession Number:

ADA523075

Title:

Fundamental Investigation of Interactions and Behavior Between Phase Change Materials and Liquid Metals in Nano-Micro Scale Volumes

Descriptive Note:

Final rept. 1 Sep 2007-22 Mar 2010

Corporate Author:

ANGSTROM AEROSPACE CORPORATION UPPSALA (SWEDEN)

Personal Author(s):

Report Date:

2009-10-26

Pagination or Media Count:

46.0

Abstract:

This report results from a contract tasking Angstrom Aerospace Corporation as follows This proposal offers to investigate in greater detail the properties between liquid metals and phase-change materials in nano-micro scale volumes on a fundamental level. Investigations of novel metal-alloy combinations and phase-change materials will be performed through three proposed phases, where the phases go from fundamental research to an experimental device. Properties of such as wetting, adhesion, surface deformation, tension, diffusion, in-stability mixing in the boundary interface will be studied. The research will focus on the properties between liquid metal-phase change materials where the melting point of the metal is below the phase change material. A common feature of long hydrocarbon chains Paraffin and similar is the distinct volume increase during the phase change from solid to liquid, 15 or more is not unusual. The volume expansion is hydraulic or incompressible to its nature. The metals to be tested are Low Melting Point alloys based on BismuthTinIndium compositions, but other alloys and even pure metals such as Mercury could beconsidered. The wetting properties between a thin-film of solid metal and the boundary layer created between the LMP and the phase change material will also be investigated.

Subject Categories:

  • Metallurgy and Metallography
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE