Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics
The effects of the sintering time on the electrical properties and the positive temperature coefficient of resistance (PTCR) effect of Ba1.006(Ti1-xNbx)O3 (BTN) ceramics were investigated, which were sintered at 1190 ºC for 0.5-6 hours in a reducing atmosphere and then re-oxidized at 800 ºC for 1 ho...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2019-09-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000800216&tlng=en |
| _version_ | 1818973230473412608 |
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| author | Xuxin Cheng Haining Cui Zhiyong Xu Xiaoming Chen Yuxin Wang |
| author_facet | Xuxin Cheng Haining Cui Zhiyong Xu Xiaoming Chen Yuxin Wang |
| author_sort | Xuxin Cheng |
| collection | DOAJ |
| description | The effects of the sintering time on the electrical properties and the positive temperature coefficient of resistance (PTCR) effect of Ba1.006(Ti1-xNbx)O3 (BTN) ceramics were investigated, which were sintered at 1190 ºC for 0.5-6 hours in a reducing atmosphere and then re-oxidized at 800 ºC for 1 hour. The results indicated that the sintering time affected the electrical properties and the PTCR effect of the multilayer BTN samples, whose room-temperature resistance decreased with an increase of the sintering time at same sintering temperature of 1190 ºC. However, the resistance jump first increased and then reduced as a function of the sintering time. Furthermore, The BTN ceramics exhibited a pronounced PTCR effect, with a resistance jump greater by 3.6 orders of magnitude, along with a low RT resistance of 0.14 Ω at a reoxidated temperature of 800 ºC after sintering at 1190 ºC for 2 h in a reducing atmosphere. In addition, the activation energy of samples obtained at different sintering times had also been investigated. |
| first_indexed | 2024-12-20T15:20:52Z |
| format | Article |
| id | doaj.art-ef285c7230a14fcbad8d5ee3e180b86c |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-20T15:20:52Z |
| publishDate | 2019-09-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-ef285c7230a14fcbad8d5ee3e180b86c2022-12-21T19:36:03ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392019-09-0122suppl 210.1590/1980-5373-mr-2018-0767Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 CeramicsXuxin Chenghttps://orcid.org/0000-0003-2995-9349Haining CuiZhiyong XuXiaoming ChenYuxin WangThe effects of the sintering time on the electrical properties and the positive temperature coefficient of resistance (PTCR) effect of Ba1.006(Ti1-xNbx)O3 (BTN) ceramics were investigated, which were sintered at 1190 ºC for 0.5-6 hours in a reducing atmosphere and then re-oxidized at 800 ºC for 1 hour. The results indicated that the sintering time affected the electrical properties and the PTCR effect of the multilayer BTN samples, whose room-temperature resistance decreased with an increase of the sintering time at same sintering temperature of 1190 ºC. However, the resistance jump first increased and then reduced as a function of the sintering time. Furthermore, The BTN ceramics exhibited a pronounced PTCR effect, with a resistance jump greater by 3.6 orders of magnitude, along with a low RT resistance of 0.14 Ω at a reoxidated temperature of 800 ºC after sintering at 1190 ºC for 2 h in a reducing atmosphere. In addition, the activation energy of samples obtained at different sintering times had also been investigated.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000800216&tlng=enBaTiO3PTC effectNb2O5-dopantReoxidation |
| spellingShingle | Xuxin Cheng Haining Cui Zhiyong Xu Xiaoming Chen Yuxin Wang Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics Materials Research BaTiO3 PTC effect Nb2O5-dopant Reoxidation |
| title | Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics |
| title_full | Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics |
| title_fullStr | Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics |
| title_full_unstemmed | Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics |
| title_short | Influence of Sintering Time on the PTCR Effect of Nb2O5-doped BaTiO3 Ceramics |
| title_sort | influence of sintering time on the ptcr effect of nb2o5 doped batio3 ceramics |
| topic | BaTiO3 PTC effect Nb2O5-dopant Reoxidation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000800216&tlng=en |
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