Wetting behavior and reactivity of molten silicon with h-BN substrate at ultrahigh temperatures up to 1750 °C

Polkowski, Wojciech and Sobczak, Natalia and Nowak, Rafal and Kudyba, Artur and Bruzda, Grzegorz and Polkowska, Adelajda and Homa, Marta and Turalska, Patrycja and Tangstad, Merete and Safarian, Jafar and Moosavi-Khoonsari, Elmira and Datas Medina, Alejandro (2017). Wetting behavior and reactivity of molten silicon with h-BN substrate at ultrahigh temperatures up to 1750 °C. "Journal of Materials Engineering And Performance" (n. 27); pp. 1-14. ISSN 1059-9495. https://doi.org/10.1007/s11665-017-3114-8.

Description

Title: Wetting behavior and reactivity of molten silicon with h-BN substrate at ultrahigh temperatures up to 1750 °C
Author/s:
  • Polkowski, Wojciech
  • Sobczak, Natalia
  • Nowak, Rafal
  • Kudyba, Artur
  • Bruzda, Grzegorz
  • Polkowska, Adelajda
  • Homa, Marta
  • Turalska, Patrycja
  • Tangstad, Merete
  • Safarian, Jafar
  • Moosavi-Khoonsari, Elmira
  • Datas Medina, Alejandro
Item Type: Article
Título de Revista/Publicación: Journal of Materials Engineering And Performance
Date: December 2017
ISSN: 1059-9495
Subjects:
Freetext Keywords: AMADEUS project; hexagonal boron nitride; modeling and simulation; refractories; silicon; thermal energy storage; wettability
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (4MB) | Preview

Abstract

For a successful implementation of newly proposed silicon-based latent heat thermal energy storage systems, proper ceramic materials that could withstand a contact heating with molten silicon at temperatures much higher than its melting point need to be developed. In this regard, a non-wetting behavior and low reactivity are the main criteria determining the applicability of ceramic as a potential crucible material for long-term ultrahigh temperature contact with molten silicon. In this work, the wetting of hexagonal boron nitride (h-BN) by molten silicon was examined for the first time at temperatures up to 1750 °C. For this purpose, the sessile drop technique combined with contact heating procedure under static argon was used. The reactivity in Si/h-BN system under proposed conditions was evaluated by SEM/EDS examinations of the solidified couple. It was demonstrated that increase in temperature improves wetting, and consequently, non-wetting-to-wetting transition takes place at around 1650 °C. The contact angle of 90° ± 5° is maintained at temperatures up to 1750 °C. The results of structural characterization supported by a thermodynamic modeling indicate that the wetting behavior of the Si/h-BN couple during heating to and cooling from ultrahigh temperature of 1750 °C is mainly controlled by the substrate dissolution/reprecipitation mechanism.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020737054AMADEUSUNIVERSIDAD POLITECNICA DE MADRIDNext GenerAtion MateriAls and Solid State DevicEs for Ultra High Temperature Energy Storage and Conversion

More information

Item ID: 50246
DC Identifier: https://oa.upm.es/50246/
OAI Identifier: oai:oa.upm.es:50246
DOI: 10.1007/s11665-017-3114-8
Official URL: https://link.springer.com/article/10.1007/s11665-017-3114-8
Deposited by: Memoria Investigacion
Deposited on: 29 May 2021 08:45
Last Modified: 29 May 2021 08:45
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM