Processing and characterization of CaTiO3 perovskite ceramics
Calcium titanate (CaTiO3) ceramics with perovskite structure were produced by solid state reaction. Calcium carbonate (CaCO3) and titanium dioxide (TiO2) were mixed (in molar ratios 1/1 and 3/2), and the obtained mixtures were calcined at 1150 °C in successive thermal cycles. The obtained samples we...
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| Format: | Article |
| Language: | English |
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University of Novi Sad
2014-06-01
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| Series: | Processing and Application of Ceramics |
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| Online Access: | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2024%2001.pdf |
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| author | Guilherme Gralik Alessandra E. Thomsen Cristian A. Moraes Fabiano Raupp-Pereira Dachamir Hotza |
| author_facet | Guilherme Gralik Alessandra E. Thomsen Cristian A. Moraes Fabiano Raupp-Pereira Dachamir Hotza |
| author_sort | Guilherme Gralik |
| collection | DOAJ |
| description | Calcium titanate (CaTiO3) ceramics with perovskite structure were produced by solid state reaction. Calcium carbonate (CaCO3) and titanium dioxide (TiO2) were mixed (in molar ratios 1/1 and 3/2), and the obtained mixtures were calcined at 1150 °C in successive thermal cycles. The obtained samples were characterized by
differential thermal analysis, thermogravimetry, X-ray diffraction, measurement of particle size distribution and linear thermal shrinkage. XRD results indicated that the samples have perovskite CaTiO3 structure with small amount of secondary CaO and TiO2 phases, and their phase composition depends on the heat treatment conditions. The measured values of electrical resistivity were within the characteristic range of insulating materials and approach values corresponding to semiconducting ceramics. |
| first_indexed | 2024-12-11T08:31:04Z |
| format | Article |
| id | doaj.art-3de4d5060f7c44bf95df3806d8bb150e |
| institution | Directory Open Access Journal |
| issn | 1820-6131 1820-6131 |
| language | English |
| last_indexed | 2024-12-11T08:31:04Z |
| publishDate | 2014-06-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj.art-3de4d5060f7c44bf95df3806d8bb150e2022-12-22T01:14:28ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61311820-61312014-06-0182535710.2298/PAC1402053GProcessing and characterization of CaTiO3 perovskite ceramicsGuilherme Gralik0Alessandra E. Thomsen1Cristian A. Moraes2Fabiano Raupp-Pereira3Dachamir Hotza4Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, BrazilDepartment of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, BrazilDepartment of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, BrazilDepartment of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, BrazilDepartment of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis, SC, BrazilCalcium titanate (CaTiO3) ceramics with perovskite structure were produced by solid state reaction. Calcium carbonate (CaCO3) and titanium dioxide (TiO2) were mixed (in molar ratios 1/1 and 3/2), and the obtained mixtures were calcined at 1150 °C in successive thermal cycles. The obtained samples were characterized by differential thermal analysis, thermogravimetry, X-ray diffraction, measurement of particle size distribution and linear thermal shrinkage. XRD results indicated that the samples have perovskite CaTiO3 structure with small amount of secondary CaO and TiO2 phases, and their phase composition depends on the heat treatment conditions. The measured values of electrical resistivity were within the characteristic range of insulating materials and approach values corresponding to semiconducting ceramics.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2024%2001.pdfCaTiO3structural characterizationconductivitythermistor |
| spellingShingle | Guilherme Gralik Alessandra E. Thomsen Cristian A. Moraes Fabiano Raupp-Pereira Dachamir Hotza Processing and characterization of CaTiO3 perovskite ceramics Processing and Application of Ceramics CaTiO3 structural characterization conductivity thermistor |
| title | Processing and characterization of CaTiO3 perovskite ceramics |
| title_full | Processing and characterization of CaTiO3 perovskite ceramics |
| title_fullStr | Processing and characterization of CaTiO3 perovskite ceramics |
| title_full_unstemmed | Processing and characterization of CaTiO3 perovskite ceramics |
| title_short | Processing and characterization of CaTiO3 perovskite ceramics |
| title_sort | processing and characterization of catio3 perovskite ceramics |
| topic | CaTiO3 structural characterization conductivity thermistor |
| url | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2024%2001.pdf |
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