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Controlled Heterogeneous Nucleation of Melt-Textured YBa2Cu3O(6+x) by Addition of Al2O3 Particles.

机译：添加al2O3颗粒控制熔融织构YBa2Cu3O（6 + x）的非均匀成核。

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The reaction between alumina and yttrium barium cuprate subjected to a melt-texturing heat-treatment was studied. Microstructural examination of quenched, partially transformed samples revealed that at approx. 1050 deg C (which is above the incongruent melting temperature of YBa2Cu3O6+x), a reaction layer forms at the alumina interface. The reaction products were identified as Ba6y2A14015 and a copper-rich liquid phase. On cooling below the peritectic temperature, aligned domains of YBa2Cu3O6+x (123) were observed to preferentially nucleate at the reaction layer. For samples of melt-textured 123 deliberately seeded with alumina particles, it was found that nucleation and growth of 123 occurred exclusively at the particles. A reaction sequence for the formation of the Ba6y2A14015 is put forward, together with a discussion of the possible nucleation mechanisms for the 123. Yttrium Barium Copper Oxide(YBCO), Peritectic, Melt-texturing, Nucleation, Barium Yttrium Aluminum Oxide (Ba6y2A14015).

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Chen, Y. L.; Zhang, L.; Chan, H. M.; Harmer, M. P.;
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年度 1992
页码 1-20
总页数 20
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Aluminum oxides; Cooling; Heat treatment; Interfaces; Layers; Liquid phases; Melting; Nucleation; Particles; Chemical analysis; Molecular structure; Chemical reactions; Solidification; Phase transformations; Yttrium barium cuprates; YBCO superconductors; High temperature superconductors;

机译：氧化铝;冷却;热处理;界面;层;液相;熔化;成核;颗粒;化学分析;分子结构;化学反应;凝固;相变;钡铜钡; YBCO超导体;高温超导体;

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1. Study of Sulfur Heterogeneous Nucleation from Supersaturated Vapor on Tungsten Oxide and Sodium Chloride Seed Particles. Determination of Contact Angle of Critical Sulfur Nuclei [J] . S. V. Valiulin, S. V. Vosel, V. V. Karasev, Colloid journal . 2014,第3期

机译：研究过饱和蒸气对氧化钨和氯化钠种子颗粒的硫异质成核作用。临界硫核的接触角的确定
2. Experimental evidence for electromagnetic coupling inhomogeneity along the grain boundary plane in high angle melt-textured YBa/sub 2/Cu/sub 3/O/sub 6+x/ bicrystals [J] . Field M.B., Pashitski A. IEEE Transactions on Applied Superconductivity . 1995,第2期

机译：高角度熔融织构YBa / sub 2 / Cu / sub 3 / O / sub 6 + x /双晶中沿晶界平面电磁耦合不均匀性的实验证据
3. Transport properties across high-angle bicrystals of melt-textured YBa/sub 2/Cu/sub 3/O/sub 6+x/ [J] . Field M.B., Cai X.Y. IEEE Transactions on Applied Superconductivity . 1993,第1期

机译：跨结构化YBa / sub 2 / Cu / sub 3 / O / sub 6 + x /的高角度双晶的传输特性
4. Effects of oxygenation time on the levitation force of melt-textured BYa_2Cu_3O_(6+x) containing Y_2BaCuO_5 inclusions [C] . Y.-S.Lee, H.S.Park, I.-H.Kuk, International symposium on superconductivity;ISS'96 . 1997

机译：氧合作用时间对含Y_2BaCuO_5夹杂物的熔融织构BYa_2Cu_3O_（6 + x）的悬浮力的影响
5. Comparison of experimental and theoretical heterogeneous nucleation of nanometer size particles. [D] . Lee, Doh-Won. 2002

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6. Magnetic control of heterogeneous ice nucleation with nanophase magnetite: Biophysical and agricultural implications [O] . Atsuko Kobayashi, Masamoto Horikawa, Joseph L. Kirschvink, 2018

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7. Zigzag Filamentary Theory of Broken Symmetry of Neutron and Infrared Vibronic Spectra of YBa2Cu3O(6+x) [O] . Phillips, J. C., Jung, J. 2001

机译：中子与红外线断裂对称性的锯齿形浅层理论 YBa2Cu3O（6 + x）的振动光谱

Controlled Heterogeneous Nucleation of Melt-Textured YBa2Cu3O(6+x) by Addition of Al2O3 Particles.

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