Title of article :
Structural studies of porous Ni/YSZ cermets fabricated by the solid-state reaction method
Author/Authors :
J. Kim، نويسنده , , K.H. Cho، نويسنده , , I. Kagomiya، نويسنده , , K. Park، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
8
From page :
7467
To page :
7474
Abstract :
Carbon black-added NiO/YSZ composites exhibited a highly porous structure due to the enhanced evolution of CO and CO2 gases associated with exothermic reactions during sintering. The addition of carbon black resulted in a decrease in the density and grain size of NiO/YSZ composites. The porosity of NiO/YSZ composites increased with decreasing the sintering temperature and increasing the NiO content. Additionally, highly porous Ni/YSZ cermets were fabricated by reducing the NiO/YSZ composites in (Ar+6% H2), which was attributed to the change of NiO to Ni and then the extraction of oxygen. The carbon black used as a pore-former was highly effective for preparing porous Ni/YSZ cermets.
Keywords :
A. Powders: solid state reaction , A. Sintering , B. Microstructure-final , B. Porosity
Journal title :
Ceramics International
Serial Year :
2013
Journal title :
Ceramics International
Record number :
1275119
Link To Document :
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