Vinokurov, AL Shlyakhtin, OA Oh, YJ Orlov, AV Tretyakov, YD 2024-01-21T09:12:25Z 2024-01-21T09:12:25Z 2021-09-03 2003-03 0953-2048 https://pubs.kist.re.kr/handle/201004/138788 In order to study chemical resistance to the Y-Ba-Cu-O melts, dense BaCeO3 ceramics have been obtained from coprecipitated oxalate precursors using CuO and BaCuO2 sintering aids. BaZrO3 ceramics obtained in a similar way were used for comparison. SEM and EDX investigation of ceramic BaCeO3 after 12 h contact with molten cuprates at 1020 degreesC demonstrated no traces of macroscopic Ce dissolution or grain boundary corrosion. Nanoprobe EDX analysis of both ceramics detected no Cu within the BaCeO3 and BaZrO3 grains. Trace amounts of Ce and Zr were observed in several intergrain necks of frozen cuprate melt. Barrier properties of BaCeO3 (BaZrO3) materials can be further enhanced by surface plasma processing of presintered porous ceramics resulting in the formation of a molten crack-free layer, stable both to chemical corrosion and to physical penetration of the melt. English IOP PUBLISHING LTD YBCO SINGLE-CRYSTALS BAZRO3 GROWTH YBA2CU3O7-X CRUCIBLES MELT Comparative analysis of barrier properties of BaCeO3 ceramics Article 10.1088/0953-2048/16/3/316 1 SUPERCONDUCTOR SCIENCE & TECHNOLOGY, v.16, no.3, pp.416 - 421 SUPERCONDUCTOR SCIENCE & TECHNOLOGY 16 3 416 421 scie scopus 000182104600018 2-s2.0-0037348627 Physics, Applied Physics, Condensed Matter Physics Article YBCO SINGLE-CRYSTALS BAZRO3 GROWTH YBA2CU3O7-X CRUCIBLES MELT chemical resistance grain boundary corrosion barrier properties surface plasma processing