Analysis on the Ceasing Mechanism of the YBCO Crystal Growth during Melting Growth Process by Unidirectional Solidification

Hai Tao Cao; Rui Hu; Hong Chao Kou; Jin Shan Li; En Zhi Gao; Heng Zhi Fu; Lian Zhou

doi:10.4028/www.scientific.net/MSF.546-549.2091

Paper Titles

Solution Phase Synthesis of Superconducting La₂CuO₄ Microspheres
p.2071

The Effects of BaF₂ Addition on Melt-Processed YBa₂Cu₃O_7-x Superconductors
p.2075

Levitation Capability of a Bulk YBa₂Cu₃O_7-x with NdFeB Guideway by Two Magnetization Methods
p.2079

Crystal Growth Mechanism of YBCO Superconductors Prepared by Unidirectional Solidification Method
p.2085

Analysis on the Ceasing Mechanism of the YBCO Crystal Growth during Melting Growth Process by Unidirectional Solidification
p.2091

Study of the Phase Formation of Sol-Gel YBa₂Cu₃O_7-x Samples in Flowing Oxygen Atmosphere
p.2097

Effect of Magnet Moving Speed on the Relaxation Rate of the Levitation Force for YBCO Bulk
p.2103

Effect of the Moving Speed between Magnet and Superconductor on the Levitation Force of Single-Domain YBCO Bulk
p.2107

Performance of Gd-Ba-Cu-O Superconductor Bulks with Ultrafine Gd₂BaCuO₅ Powders Prepared by Low-Temperature Combustion Synthesis
p.2111

HomeMaterials Science ForumMaterials Science Forum Vols. 546-549Analysis on the Ceasing Mechanism of the YBCO...

Analysis on the Ceasing Mechanism of the YBCO Crystal Growth during Melting Growth Process by Unidirectional Solidification

Abstract:

The unidirectional solidification technology by a zone melting method was performed to obtain the large single domain YBCO. The interface morphology and chemical composition at the growth front of the YBCO crystal were investigated in order to make clear the growth characteristic of the YBCO crystal during melting growth by unidirectional solidification. It was found that YBCO crystal would cease growing when yttrium was depleted in the liquid phase at the YBCO crystal growth front. For maintaining the continuous growth of YBCO crystal, compositions of Y, Ba and Cu in raw samples have to be adjusted so as to make yttrium rich in the liquid phase at the YBCO crystal growth front during the melting growth process. It is very useful for the study on the mechanism of the YBCO crystal growth.

You might also be interested in these eBooks

Progress in Light Metals, Aerospace Materials and Superconductors

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

2091-2096

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.2091

Citation:

Cite this paper

Online since:

May 2007

Authors:

Hai Tao Cao, Rui Hu, Hong Chao Kou, Jin Shan Li, En Zhi Gao, Heng Zhi Fu, Lian Zhou

Keywords:

Ceasing Mechanism, Single-Domain, Unidirectional Solidification, YBCO

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S. Jin, T. H. Tiefel, R. C. Sherwood et al: Appl. Phys. Lett. Vol. 52, No. 24, (1988), p. (2074).

Google Scholar

[2] J. Chunlin, Fan Zhanguo, Zhang Guotan, Zeng Guiyi, Bian Weimin, Zhao Zhongxian, and Guo Shuquan: Supercond. Sci. Technol. Vol. 4, No 2 (1991), p.49.

DOI: 10.1088/0953-2048/4/2/002

Google Scholar

[3] K. Salama, V. Selvamanickam, L. Gao et al: Appl. Phys. Lett. Vol. 54, No. 23, (1989), p.2352.

Google Scholar

[4] C. Varanasi, P.J. Meginn, V. Pavate, and E.P. Kvam: Physica C, Vol. 221 (1994), p.46.

Google Scholar

[5] S. K. Chen, L. Zhou, K . G. Wang, et al., Chinese Journal of Low Temperature Physics, Vol. 23, No. 3, (2001), p.193 A. Hayashi,K. Kurachi, et al.: physica C, Vol. 357(2001), p.669.

Google Scholar

[6] Wang Keguang, Zhou Lian, Zhang Pingxiang, Ji ping, et al.: Rare Metal Materials and Engineering, Vol. 25(1996), No. 5, p.7.

Google Scholar

[7] Cima M J et al. : J. Appl. Phys., Vol. 72, No. 1, (1992), p.179.

Google Scholar

[8] T, Izumi, Y. Nakamura, and Y. Shirohara�J. Mater. Res. Vol. 7, (1992), p.1621.

Google Scholar

[9] H. Shen, M. C. Flemings, M. J. Cima, and J. Haggerty, S Honjo: J. Mater. Res., Vol. 13, No. 3, (1998), p.565.

Google Scholar