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This content will become publicly available on June 21, 2017

Title: Copper-silicon-magnesium alloys for latent heat storage

The systematic development of microstructure, solidification characteristics, and heat of solidification with composition in copper-silicon-magnesium alloys for thermal energy storage is presented. Differential scanning calorimetry was used to relate the thermal characteristics to microstructural development in the investigated alloys and clarifies the location of one of the terminal three-phase eutectics. Repeated thermal cycling highlights the thermal storage stability of the transformation through multiple melting events. In conclusion, two near-terminal eutectic alloys display high enthalpies of solidification, relatively narrow melting ranges, and stable transformation hysteresis behaviors suited to thermal energy storage.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [2]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
OSTI Identifier:
1259676
Report Number(s):
SAND--2016-3337J
Journal ID: ISSN 2196-2936; PII: 89
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. E, Materials for Energy Systems
Additional Journal Information:
Journal Name: Metallurgical and Materials Transactions. E, Materials for Energy Systems; Journal ID: ISSN 2196-2936
Publisher:
ASM International
Research Org:
Sandia National Laboratories (SNL-CA), Livermore, CA (United States); Sandia National Laboratories, Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE