{"title":"锆酸锶陶瓷对mdd发生器的煤灰组分和钾籽的耐蚀性","authors":"M. Zborowska, M. Grylicki, J. Zborowski","doi":"10.1016/0390-5519(79)90007-3","DOIUrl":null,"url":null,"abstract":"<div><p>The resistance of dense strontium zirconate ceramics to corrosion by Al<sub>2</sub>O<sub>3</sub>, CaO, MgO, SiO<sub>2</sub> and K<sub>2</sub>CO<sub>3</sub> as well as coal ash was investigated by the ⪡ crucible method ⪢ for 2 hrs at 1700°C. The corrosion process was investigated by optical polarizing microscopy, X-ray microanalysis and scanning electron microscopy. The results showed that strontium zirconate ceramics have excellent corrosion resistance against K<sub>2</sub>CO<sub>3</sub>. No corrosion effect by Al<sub>2</sub>O<sub>3</sub>, CaO and MgO was observed as well. Considerable corrosion occurred when silica was used which formed a baddeleite dispersed phase in a glassy matrix of a variable composition. A similar effect was observed in crucibles corroded by coal ash containing silica.</p></div>","PeriodicalId":100227,"journal":{"name":"Ceramurgia International","volume":"5 1","pages":"Pages 28-30"},"PeriodicalIF":0.0000,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0390-5519(79)90007-3","citationCount":"1","resultStr":"{\"title\":\"The corrosion resistance of strontium zirconate ceramics to coal ash constituents and potassium seed of MHD-generators\",\"authors\":\"M. Zborowska, M. Grylicki, J. Zborowski\",\"doi\":\"10.1016/0390-5519(79)90007-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The resistance of dense strontium zirconate ceramics to corrosion by Al<sub>2</sub>O<sub>3</sub>, CaO, MgO, SiO<sub>2</sub> and K<sub>2</sub>CO<sub>3</sub> as well as coal ash was investigated by the ⪡ crucible method ⪢ for 2 hrs at 1700°C. The corrosion process was investigated by optical polarizing microscopy, X-ray microanalysis and scanning electron microscopy. The results showed that strontium zirconate ceramics have excellent corrosion resistance against K<sub>2</sub>CO<sub>3</sub>. No corrosion effect by Al<sub>2</sub>O<sub>3</sub>, CaO and MgO was observed as well. Considerable corrosion occurred when silica was used which formed a baddeleite dispersed phase in a glassy matrix of a variable composition. A similar effect was observed in crucibles corroded by coal ash containing silica.</p></div>\",\"PeriodicalId\":100227,\"journal\":{\"name\":\"Ceramurgia International\",\"volume\":\"5 1\",\"pages\":\"Pages 28-30\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1979-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0390-5519(79)90007-3\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ceramurgia International\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0390551979900073\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramurgia International","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0390551979900073","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The corrosion resistance of strontium zirconate ceramics to coal ash constituents and potassium seed of MHD-generators
The resistance of dense strontium zirconate ceramics to corrosion by Al2O3, CaO, MgO, SiO2 and K2CO3 as well as coal ash was investigated by the ⪡ crucible method ⪢ for 2 hrs at 1700°C. The corrosion process was investigated by optical polarizing microscopy, X-ray microanalysis and scanning electron microscopy. The results showed that strontium zirconate ceramics have excellent corrosion resistance against K2CO3. No corrosion effect by Al2O3, CaO and MgO was observed as well. Considerable corrosion occurred when silica was used which formed a baddeleite dispersed phase in a glassy matrix of a variable composition. A similar effect was observed in crucibles corroded by coal ash containing silica.
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