NDLI: Sintering temperature, microstructure and resistivity of polycrystalline Sm$_{0.2}$Ce$_{0.8}$O$

Content Provider	SpringerLink
Author	Jung, Guor Bing Huang, Ta Jen
Copyright Year	2003
Abstract	In this work, near-completely soft-agglomerated Sm$_{0.2}$Ce$_{0.8}$O$_{1.9}$ powders have been prepared. The pellets were formed and sintered at various sintering conditions of temperature and time. It was found that the sintering conditions have significant effects on the pellet resistivity. By the measurements with the DC four-probe method, it was found that the overall resistivity of the polycrystalline Sm$_{0.2}$Ce$_{0.8}$O$_{1.9}$ material sintered at 1500°C increases linearly with the reciprocal of the average grain size. The AC impedance spectroscopy has been used to distinguish the grain resistivity and the apparent grain boundary resistivity. The “brick layer” microstructural model has been used to provide an estimate of the apparent grain boundary resistivity and to relate the electrical properties to the microstructural parameters. By lowering the sintering temperature to 1100–1200°C, the true grain boundary resistivity was nearly two orders lower than that sintered at 1500°C, and thus the overall resistivity decreases to about 31 ohm-cm at 700°C measurement. This makes the Sm$_{0.2}$Ce$_{0.8}$O$_{1.9}$ material capable of working as SOFC's electrolyte at temperatures lower than 700°C.
Starting Page	2461
Ending Page	2468
Page Count	8
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	38
Issue Number	11
e-ISSN	15734803
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Polymer Sciences Industrial Chemistry/Chemical Engineering Characterization and Evaluation Materials Mechanics
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Mechanics of Materials Ceramics and Composites Polymers and Plastics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Libarray of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of gallia additions on sintering behavior of Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$ ceramics prepared by commercial powders

Improving the anode microstructure for SOFC with coprecipitated composite NiO/Ce$_{0.8}$Sm$_{0.2}$O$_{1.9}$ powder

Low-temperature co-sintering of co-ionic conducting solid oxide fuel cells based on Ce$_{0.8}$Sm$_{0.2}$O$_{1.9}$-BaCe$_{0.8}$Sm$_{0.2}$O$_{2.9}$ composite electrolyte

Sintering behaviour and ac conductivity of dense Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$ solid electrolyte prepared employing single-step and two-step sintering process

Characterisation of Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$/3Y-TZP composite electrolytes—effects of weight % 3Y-TZP particles

Characterisation of Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$/3Y-TZP composite electrolytes—Effects of 3Y-TZP particle treatment

Novel wet-chemical synthesis and characterization of nanocrystalline CeO$_{2}$ and Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$ as solid electrolyte for intermediate temperature solid oxide fuel cell (IT-SOFC) applications

Effect of SiO$_{2}$ content on the ionic conductivity of Ce$_{0.8}$Gd$_{0.2}$O$_{2−δ}$ ceramics

Densification of La$_{0.6}$Sr$_{0.4}$Co$_{0.2}$Fe$_{0.8}$O$_{3}$ ceramic by flash sintering at temperature less than 100 °C

Sintering temperature, microstructure and resistivity of polycrystalline Sm$_{0.2}$Ce$_{0.8}$O$_{1.9}$ as SOFC's electrolyte

Similar Documents

Effects of gallia additions on sintering behavior of Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$ ceramics prepared by commercial powders

Improving the anode microstructure for SOFC with coprecipitated composite NiO/Ce$_{0.8}$Sm$_{0.2}$O$_{1.9}$ powder

Low-temperature co-sintering of co-ionic conducting solid oxide fuel cells based on Ce$_{0.8}$Sm$_{0.2}$O$_{1.9}$-BaCe$_{0.8}$Sm$_{0.2}$O$_{2.9}$ composite electrolyte

Sintering behaviour and ac conductivity of dense Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$ solid electrolyte prepared employing single-step and two-step sintering process

Characterisation of Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$/3Y-TZP composite electrolytes—effects of weight % 3Y-TZP particles

Characterisation of Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$/3Y-TZP composite electrolytes—Effects of 3Y-TZP particle treatment

Novel wet-chemical synthesis and characterization of nanocrystalline CeO$_{2}$ and Ce$_{0.8}$Gd$_{0.2}$O$_{1.9}$ as solid electrolyte for intermediate temperature solid oxide fuel cell (IT-SOFC) applications

Effect of SiO$_{2}$ content on the ionic conductivity of Ce$_{0.8}$Gd$_{0.2}$O$_{2−δ}$ ceramics

Densification of La$_{0.6}$Sr$_{0.4}$Co$_{0.2}$Fe$_{0.8}$O$_{3}$ ceramic by flash sintering at temperature less than 100 °C

Sintering temperature, microstructure and resistivity of polycrystalline Sm$_{0.2}$Ce$_{0.8}$O$_{1.9}$ as SOFC's electrolyte