N. N. Pestereva, A. F. Guseva, N. A. Vasilenko, I. V. Beketov, N. V. Selezneva
{"title":"La2(WO4)3-Al2O3 复合材料的传输特性","authors":"N. N. Pestereva, A. F. Guseva, N. A. Vasilenko, I. V. Beketov, N. V. Selezneva","doi":"10.1134/s1023193523120091","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>(1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> composites are obtained by the solid-phase method (φ is the volume fraction of nanodispersed alumina) and their thermal properties, morphology, and electrical conductivity are studied depending on temperature, pressure of oxygen in the gas phase, and composition. It is found that the conductivity of the composites (1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> passes through a maximum at φ ~ 0.1 and reaches a value of 7 × 10<sup>–3</sup> S/cm at 1000°C, which is seven times higher than the conductivity of La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub> at the given temperature. Using the EMF method and measuring the dependence of electrical conductivity on oxygen pressure in the gas phase, the ionic nature of the conductivity of the (1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> composites is established.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"456 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Transport Properties of La2(WO4)3–Al2O3 Composites\",\"authors\":\"N. N. Pestereva, A. F. Guseva, N. A. Vasilenko, I. V. Beketov, N. V. Selezneva\",\"doi\":\"10.1134/s1023193523120091\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>(1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> composites are obtained by the solid-phase method (φ is the volume fraction of nanodispersed alumina) and their thermal properties, morphology, and electrical conductivity are studied depending on temperature, pressure of oxygen in the gas phase, and composition. It is found that the conductivity of the composites (1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> passes through a maximum at φ ~ 0.1 and reaches a value of 7 × 10<sup>–3</sup> S/cm at 1000°C, which is seven times higher than the conductivity of La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub> at the given temperature. Using the EMF method and measuring the dependence of electrical conductivity on oxygen pressure in the gas phase, the ionic nature of the conductivity of the (1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> composites is established.</p>\",\"PeriodicalId\":760,\"journal\":{\"name\":\"Russian Journal of Electrochemistry\",\"volume\":\"456 1\",\"pages\":\"\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-01-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Electrochemistry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1134/s1023193523120091\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1134/s1023193523120091","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Transport Properties of La2(WO4)3–Al2O3 Composites
Abstract
(1 – φ)La2(WO4)3–φAl2O3 composites are obtained by the solid-phase method (φ is the volume fraction of nanodispersed alumina) and their thermal properties, morphology, and electrical conductivity are studied depending on temperature, pressure of oxygen in the gas phase, and composition. It is found that the conductivity of the composites (1 – φ)La2(WO4)3–φAl2O3 passes through a maximum at φ ~ 0.1 and reaches a value of 7 × 10–3 S/cm at 1000°C, which is seven times higher than the conductivity of La2(WO4)3 at the given temperature. Using the EMF method and measuring the dependence of electrical conductivity on oxygen pressure in the gas phase, the ionic nature of the conductivity of the (1 – φ)La2(WO4)3–φAl2O3 composites is established.
期刊介绍：
Russian Journal of Electrochemistry is a journal that covers all aspects of research in modern electrochemistry. The journal welcomes submissions in English or Russian regardless of country and nationality of authors.
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