Combustion synthesis and characterization of porous Ni-Al materials for metal-supported solid oxide fuel cells application

Anatoly Maznoy, Alexander Kirdyashkin, Vladimir Kitler, Andrey Alexandrovich Soloviev

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Combustion synthesis (CS) in thermal explosion mode under conditions of controlled heat loss is used for synthesis of thin Ni-Al porous plates. In the present work, compacted Ni-Al elemental powder mixtures placed between heat-removing clamp plates are heated in a furnace at 25 K/min up to 1000 K under the uniaxial load up to 1.2 MPa with further heat treatment at the temperature of 1100 K. The effects of the Ni/Al mass ratio, reagent powders size, porosity and thickness of the reacting samples as well as conditions of heat-exchange during the CS on the reaction parameters have been studied. Based on the thermocouple measurements, the temperature and timing characteristics of the CS process have been calculated. The phase composition evolution during the process has been analyzed using X-ray diffraction and energy-dispersive X-ray spectroscopy. Special attention has been paid to the study of the following characteristics of synthesized materials: porosity parameters, gas permeability and mechanical properties. Due to the high strength of synthesized materials and formation of relatively homogenous structure with proper pores size and gas permeability, the synthesized porous Ni-Al plates can be considered as good supporting substrate for application in metal-supported solid oxide fuel cells.

Original languageEnglish
Pages (from-to)114-123
Number of pages10
JournalJournal of Alloys and Compounds
Volume697
DOIs
Publication statusPublished - 15 Mar 2017

Fingerprint

Combustion synthesis
Solid oxide fuel cells (SOFC)
Gas permeability
Metals
Powders
Porosity
Porous plates
Clamping devices
Thermocouples
Heat losses
Phase composition
Pore size
Explosions
Furnaces
Heat treatment
X ray diffraction
Mechanical properties
Temperature
Substrates
Hot Temperature

Keywords

  • Combustion synthesis
  • MS-SOFC
  • Porous Ni-Al

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Combustion synthesis and characterization of porous Ni-Al materials for metal-supported solid oxide fuel cells application. / Maznoy, Anatoly; Kirdyashkin, Alexander; Kitler, Vladimir; Soloviev, Andrey Alexandrovich.

In: Journal of Alloys and Compounds, Vol. 697, 15.03.2017, p. 114-123.

Research output: Contribution to journalArticle

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