{"title":"不同方法制备的 ZrO2（MexOy）细粉的烧结性能","authors":"X. Yang, A. G. Burlachenko, S. P. Buyakova","doi":"10.1007/s11182-024-03219-9","DOIUrl":null,"url":null,"abstract":"<p>This work explores compaction of fine ZrO<sub>2</sub> powders doped with Y<sub>2</sub>O<sub>3</sub> and MgO. ZrO<sub>2</sub>(Me<sub><i>x</i></sub>O<sub><i>y</i></sub>) powders are obtained by plasma chemical synthesis and chemical precipitation from salt solutions. Powder compaction is studied during the nonisothermal sintering process. It is shown that the ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) powder synthesized by chemical precipitation demonstrates the lowest degree of compaction during sintering. With the same synthesis method and similar size distribution of ZrO<sub>2</sub>(Me<sub><i>x</i></sub>O<sub><i>y</i></sub>) powders, the difference in the compaction kinetics is determined by the different number of oxygen vacancies. The higher number of oxygen vacancies in the ZrO<sub>2</sub>(MgO) powder obtained by plasma chemical synthesis, provides the highest compaction rate compared to the ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) powder. According to mercury porosimetry, ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) powders of the same composition obtained by plasma chemical synthesis and chemical precipitation, have very different porosity. The highest compaction rate for all compacts is observed at the heating stage. After sintering, ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) ceramic samples show similar values of compaction rate. Research findings may be useful to specialists involved in the development and synthesis of fine ceramic powders.</p>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 8","pages":"1083 - 1089"},"PeriodicalIF":0.4000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sintering Properties of ZrO2(MexOy) Fine Powders Produced by Different Methods\",\"authors\":\"X. Yang, A. G. Burlachenko, S. P. Buyakova\",\"doi\":\"10.1007/s11182-024-03219-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This work explores compaction of fine ZrO<sub>2</sub> powders doped with Y<sub>2</sub>O<sub>3</sub> and MgO. ZrO<sub>2</sub>(Me<sub><i>x</i></sub>O<sub><i>y</i></sub>) powders are obtained by plasma chemical synthesis and chemical precipitation from salt solutions. Powder compaction is studied during the nonisothermal sintering process. It is shown that the ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) powder synthesized by chemical precipitation demonstrates the lowest degree of compaction during sintering. With the same synthesis method and similar size distribution of ZrO<sub>2</sub>(Me<sub><i>x</i></sub>O<sub><i>y</i></sub>) powders, the difference in the compaction kinetics is determined by the different number of oxygen vacancies. The higher number of oxygen vacancies in the ZrO<sub>2</sub>(MgO) powder obtained by plasma chemical synthesis, provides the highest compaction rate compared to the ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) powder. According to mercury porosimetry, ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) powders of the same composition obtained by plasma chemical synthesis and chemical precipitation, have very different porosity. The highest compaction rate for all compacts is observed at the heating stage. After sintering, ZrO<sub>2</sub>(Y<sub>2</sub>O<sub>3</sub>) ceramic samples show similar values of compaction rate. Research findings may be useful to specialists involved in the development and synthesis of fine ceramic powders.</p>\",\"PeriodicalId\":770,\"journal\":{\"name\":\"Russian Physics Journal\",\"volume\":\"67 8\",\"pages\":\"1083 - 1089\"},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2024-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Physics Journal\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11182-024-03219-9\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Physics Journal","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11182-024-03219-9","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Sintering Properties of ZrO2(MexOy) Fine Powders Produced by Different Methods
This work explores compaction of fine ZrO2 powders doped with Y2O3 and MgO. ZrO2(MexOy) powders are obtained by plasma chemical synthesis and chemical precipitation from salt solutions. Powder compaction is studied during the nonisothermal sintering process. It is shown that the ZrO2(Y2O3) powder synthesized by chemical precipitation demonstrates the lowest degree of compaction during sintering. With the same synthesis method and similar size distribution of ZrO2(MexOy) powders, the difference in the compaction kinetics is determined by the different number of oxygen vacancies. The higher number of oxygen vacancies in the ZrO2(MgO) powder obtained by plasma chemical synthesis, provides the highest compaction rate compared to the ZrO2(Y2O3) powder. According to mercury porosimetry, ZrO2(Y2O3) powders of the same composition obtained by plasma chemical synthesis and chemical precipitation, have very different porosity. The highest compaction rate for all compacts is observed at the heating stage. After sintering, ZrO2(Y2O3) ceramic samples show similar values of compaction rate. Research findings may be useful to specialists involved in the development and synthesis of fine ceramic powders.
期刊介绍：
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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