Projects / Programmes source: ARIS

Reduction - reoxidation process in donor-doped BaTiO3 PTCR ceramics

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Research activity

Code Science Field Subfield
2.04.01  Engineering sciences and technologies  Materials science and technology  Inorganic nonmetallic materials 

Code Science Field
T153  Technological sciences  Ceramic materials and powders 
Keywords
donor-doped BaTiO3 ceramics, PTCR, microscopy, reduction, reoxidation
Evaluation (metodology)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
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Organisations (1) , Researchers (2)
0106  Jožef Stefan Institute
no. Code Name and surname Research area Role Period No. of publications
1.  10372  PhD Darko Makovec  Materials science and technology  Head  1999 - 2001  700 
2.  06062  Josip Puh  Materials science and technology  Researcher  1999 - 2001  16 
Abstract
During the preparation of donor-doped BaTiO3 PTCR ceramics, a semiconducting (reduced) form is obtained by sintering at high temperatures, which is afterwards reoxidized during cooling. The knowledge regarding the reduction - reoxidation process is very important for understanding of the PTCR effect, as well as for engineering of BaTiO3 - based functional ceramics, especially the PTC resistors. The aim of the project proposal is to study the microstructural changes during reduction-reoxidation process in donor-doped BaTiO3 and to correlate results of this study with the electrical properties of the donor-doped BaTiO3 ceramics.
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