{"title":"保-保-错系统的研究","authors":"J.L. Jondo, S. Phok, Ph. Galez, J.-L. Jorda","doi":"10.1016/S1463-0184(02)00053-9","DOIUrl":null,"url":null,"abstract":"<div><p><span>The complex ternary system Ba-Cu- O has been re-visited in 0.1 MPa oxygen pressure. It is established that for such pressure, the </span><span><math><mtext>BaO</mtext><msub><mi></mi><mn><mtext>2</mtext></mn></msub><mtext>=</mtext><mtext>BaO+</mtext><mtext>1</mtext><mtext>2</mtext><mtext>O</mtext><msub><mi></mi><mn>2</mn></msub></math></span> reaction has an important role for reaching the equilibrium state. The pathway for the phase formation is then described in ternary sections BaO<sub>2</sub>-BaO-CuO. We have specified the temperatures and the forming reactions of the 3 compounds in the system: Ba<sub>2</sub><span>CuO</span><sub>3.04</sub> decomposes by peritectic-like reaction at 1033°C and shows a structural transition from orthorhombic to tetragonal for at 825°C, BaCuO<sub>2</sub> is a congruent melting compound at 1035°C and Ba<sub>2</sub>Cu<sub>3</sub>O<sub>5.5</sub> undergoes a peritectoïdic decomposition into BaCuO<sub>2</sub> and CuO at 893°C.</p></div>","PeriodicalId":10766,"journal":{"name":"Crystal Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2002-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1463-0184(02)00053-9","citationCount":"6","resultStr":"{\"title\":\"Studies in the BaO2–BaO–CuO system\",\"authors\":\"J.L. Jondo, S. Phok, Ph. Galez, J.-L. Jorda\",\"doi\":\"10.1016/S1463-0184(02)00053-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>The complex ternary system Ba-Cu- O has been re-visited in 0.1 MPa oxygen pressure. It is established that for such pressure, the </span><span><math><mtext>BaO</mtext><msub><mi></mi><mn><mtext>2</mtext></mn></msub><mtext>=</mtext><mtext>BaO+</mtext><mtext>1</mtext><mtext>2</mtext><mtext>O</mtext><msub><mi></mi><mn>2</mn></msub></math></span> reaction has an important role for reaching the equilibrium state. The pathway for the phase formation is then described in ternary sections BaO<sub>2</sub>-BaO-CuO. We have specified the temperatures and the forming reactions of the 3 compounds in the system: Ba<sub>2</sub><span>CuO</span><sub>3.04</sub> decomposes by peritectic-like reaction at 1033°C and shows a structural transition from orthorhombic to tetragonal for at 825°C, BaCuO<sub>2</sub> is a congruent melting compound at 1035°C and Ba<sub>2</sub>Cu<sub>3</sub>O<sub>5.5</sub> undergoes a peritectoïdic decomposition into BaCuO<sub>2</sub> and CuO at 893°C.</p></div>\",\"PeriodicalId\":10766,\"journal\":{\"name\":\"Crystal Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1463-0184(02)00053-9\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Crystal Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1463018402000539\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystal Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1463018402000539","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
摘要
在0.1 MPa的氧压下,重新考察了Ba-Cu- O复合三元体系。结果表明,在此压力下,BaO2=BaO+12O2反应对达到平衡态具有重要作用。相形成的途径随后在三元部分bao - 2- bao - cuo中描述。我们明确了系统中3种化合物的温度和形成反应:Ba2CuO3.04在1033℃时发生类包晶反应,在825℃时结构由正交向四方转变,BaCuO2在1035℃时为全等熔融化合物,Ba2Cu3O5.5在893℃时peritectoïdic分解为BaCuO2和CuO。
The complex ternary system Ba-Cu- O has been re-visited in 0.1 MPa oxygen pressure. It is established that for such pressure, the reaction has an important role for reaching the equilibrium state. The pathway for the phase formation is then described in ternary sections BaO2-BaO-CuO. We have specified the temperatures and the forming reactions of the 3 compounds in the system: Ba2CuO3.04 decomposes by peritectic-like reaction at 1033°C and shows a structural transition from orthorhombic to tetragonal for at 825°C, BaCuO2 is a congruent melting compound at 1035°C and Ba2Cu3O5.5 undergoes a peritectoïdic decomposition into BaCuO2 and CuO at 893°C.