Hang Yin, Xiaodong He, Kebin Qin, Guangping Song, Yongting Zheng, Yuelei Bai
{"title":"Ti3Al0.8Sn0.2C2 在 1200 °C 空气中的长期氧化作用","authors":"Hang Yin, Xiaodong He, Kebin Qin, Guangping Song, Yongting Zheng, Yuelei Bai","doi":"10.1016/j.oceram.2024.100605","DOIUrl":null,"url":null,"abstract":"<div><p>The addition of Sn into the raw materials is currently one of the most widely used methods to improve the purity and mechanical properties of Ti<sub>3</sub>AlC<sub>2</sub>. It follows in this work to investigate the oxidation behavior of the resulting Ti<sub>3</sub>Al<sub>0</sub><sub>.</sub><sub>8</sub>Sn<sub>0</sub><sub>.</sub><sub>2</sub>C<sub>2</sub> at 1200 °C with the oxidation time up to 500 h. The oxidation kinetics shows that its oxidation resistance is much worse than that of common MAX phases including Ti<sub>3</sub>AlC<sub>2</sub>, Ti<sub>2</sub>AlC, and Cr<sub>2</sub>AlC. The oxide layer mainly consists of TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub>, with only a small amount of SnO<sub>2</sub> at the beginning of the oxidation stage. Cracks induced by the internal thermal stress penetrate through the entire oxide layer after only 1 h, which is an important reason for the rapid oxidation of the internal substrate layer. This work is expected to provide some inspiration and reference for Ti<sub>3</sub>Al<sub>0</sub><sub>.</sub><sub>8</sub>Sn<sub>0</sub><sub>.</sub><sub>2</sub>C<sub>2</sub> used as the potential high-temperature structural material.</p></div>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666539524000695/pdfft?md5=51def6be13b7b1bac5c4f60dce2f94e9&pid=1-s2.0-S2666539524000695-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Long-term oxidation of Ti3Al0.8Sn0.2C2 in air at 1200 °C\",\"authors\":\"Hang Yin, Xiaodong He, Kebin Qin, Guangping Song, Yongting Zheng, Yuelei Bai\",\"doi\":\"10.1016/j.oceram.2024.100605\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The addition of Sn into the raw materials is currently one of the most widely used methods to improve the purity and mechanical properties of Ti<sub>3</sub>AlC<sub>2</sub>. It follows in this work to investigate the oxidation behavior of the resulting Ti<sub>3</sub>Al<sub>0</sub><sub>.</sub><sub>8</sub>Sn<sub>0</sub><sub>.</sub><sub>2</sub>C<sub>2</sub> at 1200 °C with the oxidation time up to 500 h. The oxidation kinetics shows that its oxidation resistance is much worse than that of common MAX phases including Ti<sub>3</sub>AlC<sub>2</sub>, Ti<sub>2</sub>AlC, and Cr<sub>2</sub>AlC. The oxide layer mainly consists of TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub>, with only a small amount of SnO<sub>2</sub> at the beginning of the oxidation stage. Cracks induced by the internal thermal stress penetrate through the entire oxide layer after only 1 h, which is an important reason for the rapid oxidation of the internal substrate layer. This work is expected to provide some inspiration and reference for Ti<sub>3</sub>Al<sub>0</sub><sub>.</sub><sub>8</sub>Sn<sub>0</sub><sub>.</sub><sub>2</sub>C<sub>2</sub> used as the potential high-temperature structural material.</p></div>\",\"PeriodicalId\":2,\"journal\":{\"name\":\"ACS Applied Bio Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2024-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666539524000695/pdfft?md5=51def6be13b7b1bac5c4f60dce2f94e9&pid=1-s2.0-S2666539524000695-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Bio Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666539524000695\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, BIOMATERIALS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666539524000695","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
Long-term oxidation of Ti3Al0.8Sn0.2C2 in air at 1200 °C
The addition of Sn into the raw materials is currently one of the most widely used methods to improve the purity and mechanical properties of Ti3AlC2. It follows in this work to investigate the oxidation behavior of the resulting Ti3Al0.8Sn0.2C2 at 1200 °C with the oxidation time up to 500 h. The oxidation kinetics shows that its oxidation resistance is much worse than that of common MAX phases including Ti3AlC2, Ti2AlC, and Cr2AlC. The oxide layer mainly consists of TiO2 and Al2O3, with only a small amount of SnO2 at the beginning of the oxidation stage. Cracks induced by the internal thermal stress penetrate through the entire oxide layer after only 1 h, which is an important reason for the rapid oxidation of the internal substrate layer. This work is expected to provide some inspiration and reference for Ti3Al0.8Sn0.2C2 used as the potential high-temperature structural material.
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