Development of mixed conducting dense nickel/Ca-doped lanthanum zirconate cermet for gas separation application

S. Nag; S. Mukhopadhyay; R. N. Basu

doi:10.1016/j.materresbull.2011.12.011

Development of mixed conducting dense nickel/Ca-doped lanthanum zirconate cermet for gas separation application

S. Nag, S. Mukhopadhyay, R. N. Basu

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

La _1.95Ca _0.05Zr ₂O _7-δ (LCZ) and Ni-LCZ cermet have been prepared by combustion synthesis and conventional solid state mixing methods respectively. Both the materials are sintered in air and controlled atmosphere (5% H ₂ in Ar). The density obtained for the material sintered at 1400 °C in controlled atmosphere is found to be more than 99.5%. This sintering temperature (1400 °C) is considered to be much lower compared to the conventional sintering temperature. The corresponding total conductivity for such Ni-LCZ cermet materials is ∼400 S/cm measured at 750 °C having 40 vol% of Ni and 60 vol% LCZ.

Original language	English
Pages (from-to)	925-929
Number of pages	5
Journal	Materials Research Bulletin
Volume	47
Issue number	3
DOIs	https://doi.org/10.1016/j.materresbull.2011.12.011
State	Published - Mar 2012
Externally published	Yes

Funding

This work is financially supported by Supra Institutional Project (SIP 0023), CGCRI, CSIR, India . The authors are thankful to Director, CGCRI for his kind permission to publish this work.

Funders	Funder number
Council of Scientific and Industrial Research, India
Central Glass and Ceramic Research Institute

Keywords

A. Ceramics
C. Electron microscopy
C. X-ray diffraction
D. Defects
D. Electrical properties

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10.1016/j.materresbull.2011.12.011

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title = "Development of mixed conducting dense nickel/Ca-doped lanthanum zirconate cermet for gas separation application",

abstract = "La 1.95Ca 0.05Zr 2O 7-δ (LCZ) and Ni-LCZ cermet have been prepared by combustion synthesis and conventional solid state mixing methods respectively. Both the materials are sintered in air and controlled atmosphere (5% H 2 in Ar). The density obtained for the material sintered at 1400 °C in controlled atmosphere is found to be more than 99.5%. This sintering temperature (1400 °C) is considered to be much lower compared to the conventional sintering temperature. The corresponding total conductivity for such Ni-LCZ cermet materials is ∼400 S/cm measured at 750 °C having 40 vol% of Ni and 60 vol% LCZ.",

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AU - Nag, S.

AU - Mukhopadhyay, S.

AU - Basu, R. N.

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N2 - La 1.95Ca 0.05Zr 2O 7-δ (LCZ) and Ni-LCZ cermet have been prepared by combustion synthesis and conventional solid state mixing methods respectively. Both the materials are sintered in air and controlled atmosphere (5% H 2 in Ar). The density obtained for the material sintered at 1400 °C in controlled atmosphere is found to be more than 99.5%. This sintering temperature (1400 °C) is considered to be much lower compared to the conventional sintering temperature. The corresponding total conductivity for such Ni-LCZ cermet materials is ∼400 S/cm measured at 750 °C having 40 vol% of Ni and 60 vol% LCZ.

AB - La 1.95Ca 0.05Zr 2O 7-δ (LCZ) and Ni-LCZ cermet have been prepared by combustion synthesis and conventional solid state mixing methods respectively. Both the materials are sintered in air and controlled atmosphere (5% H 2 in Ar). The density obtained for the material sintered at 1400 °C in controlled atmosphere is found to be more than 99.5%. This sintering temperature (1400 °C) is considered to be much lower compared to the conventional sintering temperature. The corresponding total conductivity for such Ni-LCZ cermet materials is ∼400 S/cm measured at 750 °C having 40 vol% of Ni and 60 vol% LCZ.

KW - A. Ceramics

KW - C. Electron microscopy

KW - C. X-ray diffraction

KW - D. Defects

KW - D. Electrical properties

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JO - Materials Research Bulletin

JF - Materials Research Bulletin

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Development of mixed conducting dense nickel/Ca-doped lanthanum zirconate cermet for gas separation application

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