The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics
<p>Lead-free potassium sodium niobate (K<sub>0.5</sub>Na<sub>0.5</sub>)NbO<sub>3</sub> (KNN) has been prepared via conventional ceramic processing method. The influence of 0.5 wt% - 1.5 wt% MnO<sub>2</sub> and WO<sub>3</sub> addition...
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2011-03-01
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| Series: | Medžiagotyra |
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| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/251 |
| _version_ | 1818595038424203264 |
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| author | Ilze SMELTERE Maija ANTONOVA Anna KALVANE Oskars GRIGS Maris LIVINSH |
| author_facet | Ilze SMELTERE Maija ANTONOVA Anna KALVANE Oskars GRIGS Maris LIVINSH |
| author_sort | Ilze SMELTERE |
| collection | DOAJ |
| description | <p>Lead-free potassium sodium niobate (K<sub>0.5</sub>Na<sub>0.5</sub>)NbO<sub>3</sub> (KNN) has been prepared via conventional ceramic processing method. The influence of 0.5 wt% - 1.5 wt% MnO<sub>2</sub> and WO<sub>3</sub> addition on the sintering, crystallographic structure, microstructure and dielectric properties of KNN has been investigated. Optimal sintering temperatures of KNN ceramics were observed to be in the narrow interval: 1090 °C - 1110 °C for MnO<sub>2</sub> doped KNN; 1150 °C - 1170 °C for pure KNN and doped with WO<sub>3</sub>. XRD patterns showed that all the samples have single perovskite structure with monoclinic structure. Microstructure of ceramics was changed greatly by using dopants.</p><p><a href="http://dx.doi.org/10.5755/j01.ms.17.1.251">http://dx.doi.org/10.5755/j01.ms.17.1.251</a></p> |
| first_indexed | 2024-12-16T11:09:40Z |
| format | Article |
| id | doaj.art-aa2a3b06e9df4423a1a3ce115b32c108 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-16T11:09:40Z |
| publishDate | 2011-03-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-aa2a3b06e9df4423a1a3ce115b32c1082022-12-21T22:33:46ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892011-03-01171626410.5755/j01.ms.17.1.251208The Effect of Dopants on Sintering and Microstructure of Lead-free KNN CeramicsIlze SMELTERE0Maija ANTONOVA1Anna KALVANE2Oskars GRIGS3Maris LIVINSH4University of Latvia, Riga Technical UniversityUniversity of LatviaUniversity of LatviaRiga Technical UniversityUniversity of Latvia<p>Lead-free potassium sodium niobate (K<sub>0.5</sub>Na<sub>0.5</sub>)NbO<sub>3</sub> (KNN) has been prepared via conventional ceramic processing method. The influence of 0.5 wt% - 1.5 wt% MnO<sub>2</sub> and WO<sub>3</sub> addition on the sintering, crystallographic structure, microstructure and dielectric properties of KNN has been investigated. Optimal sintering temperatures of KNN ceramics were observed to be in the narrow interval: 1090 °C - 1110 °C for MnO<sub>2</sub> doped KNN; 1150 °C - 1170 °C for pure KNN and doped with WO<sub>3</sub>. XRD patterns showed that all the samples have single perovskite structure with monoclinic structure. Microstructure of ceramics was changed greatly by using dopants.</p><p><a href="http://dx.doi.org/10.5755/j01.ms.17.1.251">http://dx.doi.org/10.5755/j01.ms.17.1.251</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/251potassium sodium niobatelead-freeoxide additivespiezoelectric ceramicssintering |
| spellingShingle | Ilze SMELTERE Maija ANTONOVA Anna KALVANE Oskars GRIGS Maris LIVINSH The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics Medžiagotyra potassium sodium niobate lead-free oxide additives piezoelectric ceramics sintering |
| title | The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics |
| title_full | The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics |
| title_fullStr | The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics |
| title_full_unstemmed | The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics |
| title_short | The Effect of Dopants on Sintering and Microstructure of Lead-free KNN Ceramics |
| title_sort | effect of dopants on sintering and microstructure of lead free knn ceramics |
| topic | potassium sodium niobate lead-free oxide additives piezoelectric ceramics sintering |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/251 |
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