Electrical properties and flux performance of composite ceramic hydrogen separation membranes

2015 ◽  
Vol 3 (10) ◽  
pp. 5392-5401 ◽  
Author(s):  
J. S. Fish ◽  
S. Ricote ◽  
R. O'Hayre ◽  
N. Bonanos
Keyword(s):  
Composite Material ◽  
Electrical Properties ◽  
Ceramic Composite ◽  
Composite Ceramic ◽  
Hydrogen Separation ◽  
Dual Phase ◽  
Hydrogen Flux ◽  
Separation Membranes ◽  
Plasma Sintering ◽  
Spark Plasma

Dual-phase ceramic composite hydrogen separation membranes composed of STN and BCZY are fabricated by spark plasma sintering. The electrical properties and hydrogen flux performance are evaluated, revealing challenges for this unique composite material.

Ceramic Composite Material Obtained by Spark Plasma Sintering Technology with Carbon Nanotubes

2015 ◽  
Vol 72 (1-2) ◽  
pp. 13-16 ◽  
Author(s):  
N. A. Fedosova ◽  
P. P. Faikov ◽  
N. A. Popova ◽  
É. M. Kol’tsova ◽  
E. V. Zharikov
Keyword(s):  
Carbon Nanotubes ◽  
Composite Material ◽  
Spark Plasma Sintering ◽  
Ceramic Composite ◽  
Ceramic Composite Material ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Self-Healing of SiC-Al2O3-B4C Ceramic Composites at Low Temperatures

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 652
Author(s):  
Baoguo Wang ◽  
Rong Tu ◽  
Yinglong Wei ◽  
Haopeng Cai
Keyword(s):  
Flexural Strength ◽  
Low Temperatures ◽  
Ceramic Composite ◽  
Ceramic Composites ◽  
Self Healing ◽  
Vickers Indentation ◽  
Crack Healing ◽  
Practical Applications ◽  
Plasma Sintering ◽  
Spark Plasma

Self-healing ceramics have been researched at high temperatures, but few have been considered at lower temperatures. In this study, SiC-Al2O3-B4C ceramic composite was compacted by spark plasma sintering (SPS). A Vickers indentation was introduced, and the cracks were healed between 600 °C and 800 °C in air. Cracks could be healed completely in air above 700 °C. The ceramic composite had the best healing performance at 700 °C for 30 min, recovering flexural strength of up to 94.2% of the original. Good crack-healing ability would make this composite highly useful as it could heal defects and flaws autonomously in practical applications. The healing mechanism was also proposed to be the result of the oxidation of B4C.

Sign in / Sign up

Export Citation Format

Share Document