NDLI: PTCR characteristics and microstructure of porous (Ba,Sr)TiO$_{3}$ ceramics prepared by spark plasma sintering

Content Provider	Springer Nature Link
Author	Lee, Ki Ju Tang, Dongxu Park, K. Cho, Won Seung
Copyright Year	2010
Abstract	Porous Y-doped (Ba,Sr)TiO$_{3}$ ceramics were prepared by the spark plasma sintering of (Ba,Sr)TiO$_{3}$ powders with different amounts of carbon black, and by subsequently burning out the carbon black acting as a pore precursor. The microstructure, PTCR and gas-sensing characteristics for porous Y-doped (Ba,Sr)TiO$_{3}$ ceramics were investigated. Spark plasma sintered (Ba,Sr)TiO$_{3}$ ceramics revealed a very fine microstructure containing submicron-sized grains with a cubic phase and revealed an increased porosity after the carbon black was burned out. As a result of reoxidation treatment, the grain size of the (Ba,Sr)TiO$_{3}$ ceramics increased to a few μm and the cubic phase transformed into a tetragonal phase. The phase transformation of (Ba,Sr)TiO$_{3}$ ceramics was affected by grain size. The PTCR jump in the (Ba,Sr)TiO$_{3}$ ceramics prepared by adding 40 vol.% carbon black showed an excellent value of 4.72 × 10$^{6}$, which was ten times higher than the PTCR jump in (Ba,Sr)TiO$_{3}$ ceramics. The electrical resistivity of the porous (Ba,Sr)TiO$_{3}$ ceramics was recovered as the atmosphere changed from a reducing gas (N$_{2}$) to an oxidizing gas (O$_{2}$) under consecutive heating and cooling cycles.
Starting Page	99
Ending Page	107
Page Count	9
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	16
Issue Number	1
e-ISSN	20054149
Language	English
Publisher	The Korean Institute of Metals and Materials
Publisher Date	2010-02-26
Publisher Place	Springer
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	electrical properties sintering microstructure grain boundary grain growth Continuum Mechanics and Mechanics of Materials Characterization and Evaluation of Materials Engineering Thermodynamics, Heat and Mass Transfer Magnetism, Magnetic Materials Operating Procedures, Materials Treatment Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Condensed Matter Physics

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 Library 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

Microstructure and PTCR characteristics of porous BaTiO$_{3}$-based ceramics prepared by adding activated carbon

Sintering and microstructure characteristics of 42CrMo4 steel processed by spark plasma sintering

Microstructural development of cobalt ferrite ceramics and its influence on magnetic properties

Thermoelectric properties of n-type Bi$_{2}$Te$_{2.7}$Se$_{0.3}$ compounds prepared by spark plasma sintering

Spark plasma sintering behavior of pure aluminum depending on various sintering temperatures

Influence of various heat treatment stages on evolution of microstructure and grain in H407 steel

Tunable characteristics of (Ba$_{0.5}$Sr$_{0.5}$) TiO$_{3}$ (BST) capacitors using (Ba$_{0.5}$Sr$_{0.5}$) RuO$_{3}$ (BSR) interfacial layers onto Pt/Ti/SiO$_{2}$/Si substrates

Pressureless sintering of nanocrystalline hydroxyapatite at different temperatures

A constitutive model for sintering of granulated ceramic powders

PTCR characteristics and microstructure of porous (Ba,Sr)TiO$_{3}$ ceramics prepared by spark plasma sintering

Similar Documents

Microstructure and PTCR characteristics of porous BaTiO$_{3}$-based ceramics prepared by adding activated carbon

Sintering and microstructure characteristics of 42CrMo4 steel processed by spark plasma sintering

Microstructural development of cobalt ferrite ceramics and its influence on magnetic properties

Thermoelectric properties of n-type Bi$_{2}$Te$_{2.7}$Se$_{0.3}$ compounds prepared by spark plasma sintering

Spark plasma sintering behavior of pure aluminum depending on various sintering temperatures

Influence of various heat treatment stages on evolution of microstructure and grain in H407 steel

Tunable characteristics of (Ba$_{0.5}$Sr$_{0.5}$) TiO$_{3}$ (BST) capacitors using (Ba$_{0.5}$Sr$_{0.5}$) RuO$_{3}$ (BSR) interfacial layers onto Pt/Ti/SiO$_{2}$/Si substrates

Pressureless sintering of nanocrystalline hydroxyapatite at different temperatures

A constitutive model for sintering of granulated ceramic powders

PTCR characteristics and microstructure of porous (Ba,Sr)TiO$_{3}$ ceramics prepared by spark plasma sintering