| 研究生: |
陳嘉展 Chen, Jia-Zhan |
|---|---|
| 論文名稱: |
頂端接種熔融製程成長SmBaCuO塊材之研究 Study of Top Seed Melt Growth Process in SmBaCuO Bulk |
| 指導教授: |
陳引幹
Chen, In-Gann |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 材料科學及工程學系 Department of Materials Science and Engineering |
| 論文出版年: | 2002 |
| 畢業學年度: | 90 |
| 語文別: | 中文 |
| 論文頁數: | 99 |
| 中文關鍵詞: | 釤鋇銅氧 、單晶粒 、超導體 、頂端接種熔融製程 |
| 外文關鍵詞: | SmBaCuO, single grain, superconductor, TSMG |
| 相關次數: | 點閱:57 下載:3 |
| 分享至: |
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高溫超導塊材SmBa2Cu3O7由於peak effect的效應,所以在磁浮力方面的應用相當的具有實用的價值,無論是作為磁體或磁軸承等應用,我們都需要較大尺寸的單晶粒塊材,前人研究結果得知以添加Sm210取代Sm211的方式才能在大氣氣氛下成長出高TC的SmBCO塊材,但添加Sm210會使塊材的單晶粒不易成長較大的尺寸,故本實驗中利用同時添加不同比例的Sm211及Sm210來成長出性質良好且較容易成長單晶粒的超導SmBCO塊材。
本研究發現若Sm211/Sm210的比值小於2時,SmBCO即能有良好的TC( 90K以上),配合一般常用來提昇JC的Pt、Pd添加物,在77K、零磁場時其JC可達2×104A/cm2。在直徑20mm、厚度5mm的塊材,其磁浮力也可達850gw、擄獲磁通也達1.2kGauss。此一超導性質表現和僅添加Sm210的樣品的表現相近,且其單晶粒成長結果較僅添加Sm210的樣品良好,因此我們也以此一成分成長出單晶粒面積達590mm2的SmBCO塊材。
SmBa2Cu3O7 superconductor has potential for magnetic levitation application, because its peak effect could keep high JC in larger applied magnetic field. A large sized single grain of SmBCO superconductors are required to apply to magnetic bearings. Previous studies show that by adding Sm210 to replace Sm211 into SmBCO bulk high TC Sm-Ba-Cu-O samples can be grown in air atmosphere. But adding Sm210 will raise difficulties in growth of single grain. In this study, we add different ratio of Sm211 and Sm210 at the same time to obtain both good superconductivity and growth of single grain Sm-Ba-Cu-O samples.
It is found that the TC of SmBCO is above 90K when Sm211/Sm210 ratio is lower than 2. By adding both Sm211 and Sm210, the single grain sample size of 5mm×ψ20mm with high JC (2×104A/cm2, 77K, 0T), levitation force (850gw), and trapped field (1.2kGauss) can be achieved. Those data show similar superconducting properties to the sample which was adding only Sm210 (without Sm211), and the single grain size is larger. And has been grown a SmBCO single grain about 590mm2.
1.J.G. Bednorz and K.A. Müller, Z. Phys. B 64(1986)189.
2.M.K. Wu, J.R. Ashburn, C.J. Torng, P.H. Hor, R.L. Meng, L. Gao, Z.J. Huang, Y.Q. Wang and C.W. Chu, Phys. Rev. Lett. 58 (1987)908.
3.J. H. Schön, A. Dodabalapur, Z. Bao, Ch. Kloc, O. Schenker, B. Batlogg, Nature 410 (2001) 189.
4.J. H. Schön, Ch. Kloc, B. Batlogg, Nature 408 (2000) 549.
5.Michel Cyrot and Davor Pavuna, Introduction to Superconductivity and High-Tc Materials,World Scientific, 1992.
6.C.P. Bean, Rev. Mod. Phys. 36 (1964) 31.
7.EM. Gyrogy, R.B. van Dover, K.A. Jackson, L.F. Schneemeyer and J.V. Waszcazk, Appl. Phys. Lett. 55 (1989) 283.
8.S.Jin, T.H. Tiefel, R.C. Sherwood, M.E. Davis, R.B. van Dover, G.W. Kammlott, R.A. Fasttnacht and H.D. Keith, Appl. Phys. Lett. 52(1988)2074.
9.C.P. Poller, Jr. T. Datta and H.A. Farach, Copper Oxide Superconductors, John Wiley & Sons,1998
10.M. Murakami, M. Morita, K. Doi and M. Miyamoto, Jpn. J. Appl. Phys. Part 2 28(1989)1189.
11.H. Fujimoto, M. Murakami, S. Gotoh, N. Koshizuka and S. Tanaka, Advances in Superconductivity II(1990)285.
12.Z. Lian, Z. Pingxian, J. Ping, W. Keguang, W. Jingrong and W. Xiaozu, Supercond. Sci. Technol. 3(1990)490.
13. Z. Lian, Z. Pingxian, J. Ping, W. Keguang, W. Jingrong and W. Xiaozu, IEEE Trans. Mag. 27(1991)912.
14. M. Murakami, Melt Processed High-Temperature Superconductors, World Scientific, 1992.
15.R.J. Cava, B. Batlogg, C.H. Chen, E.A. Rietman, S.M. Zahurak and D. Werder, Nature 329(1987)423.
16. Y. Shiohara and A. Endo, Mater. Sci. Eng. R19 (1997) 1.
17. M. Kambara, T. Umeda, M. Tagami, X. Yao, E.A. Goodilin and Y. Shiohara, J. Am. Ceram. Soc. 81 (1998) 2116.
18.M.J. Kamer, H. Wu, K.W. Dennis, B.I. Polzin, D.K. Falzgraf and R.W. McCallum, Advances in Superconductivity Ⅷ(1995)385
19. M. Kambara, Y. Watanabe, K. Miyake, A. Endo, K. Murata, Y. Shiohara, and T. Umeda, J. Mater. Res. 12 (1997) 2873
20. W. Bieger, G. Krabbes, P. Schatzle, U. Wiesner, P. Verges, J. Klosowski, Physica C 257 (1996) 46.
21. 許書豪, 單晶粒c-oriented NdBaCuO/Ag高溫超導體之製程性能研究, 國立成功大學材料科學及工程學系碩士論文,中華民國90年6月
22. P. Gautier-Picard, E. Beaugnon, X. Chaud, A. Sulpice, R. Tournier, Physica C 308(1998)161.
23. M. Murakami, S.I. Yoo, T. Higuchi, N. Sakai, J. Weltz, N. Koshizuka and S. Tanaka, Jpn. J.Appl. Phys. Part2 33(1994)715.
24.D.N. Matthews, J.W. Cochrane, G.J. Russell, Physica C 249(1995)255.
25. T. Saitoh, K. Segawa, K. Kamada, N. Sakai, T. Segawa, S.I. Yoo, M. Murakami, Physica C 288 (1997) 141.
26.H.Zhang, X.W. Zou, S.M. Gong, C.B.Cai, Physica C 322(1999)53
27. D.K. Aswal, S.K. Gupta, S.C. Gadkari, K.D. Singh, L.C. Gupta, S.C. Sabharwal and M.K. Gupta, Superconductor. Sci. Technol. 8 (1995) 710.
28. R. Pinto, P.R. Apte, S.P. Pai, D. Kunar, Physica C (1993) 13.
29.C.W. Yang, Y.Q. Shan, J.N. Deng, Physica C 282-287(1997)2647
30.Z.G. Fan, Y.Q. Shan, W.H. Wang, Physica C 282-287(1997)495
31.S. Katsuyama, Y. Harada, T. Tatani, Journal of Alloys and Compounds 236(1996)165.
32. A. Hu, X. Obradors, V. Gomis, T. Puig, A. Carrillo, E. Cardellach, E. Mendoza, Z.X. Zhao and J.W. Xiong, Appl. Supercond. 6(1998)129.
33. JCPDS-ICCD, PDF-number : 81-0393
34. JCPDS-ICCD, PDF-number : 38-1041
35. JCPDS-ICCD, PDF-number : 82-2321
36.I. Karakaya and W.T. Thompson, Bull. Alloy Phase Diagrams, 9(1988)237
37. 劉浩哲, 單晶粒Nd-Ba-Cu-O高溫超導體之製程研究, 國立成功大學材料科學及工程學系碩士論文, 中華民國87年6月
38. H. Kojo, S.I. Yoo and M. Murakami, Physica C 289 (1997) 85
39. M. Murakami, N. Hayashi, N. Sakai, S. Ozawa, and N. Chikumoto, Advances in Superconductivity IX (1997) 663.
40.M. Nakamura, Y. Yamada, T. Hiryama, Y. Ikuhara, Y. Shiohara, and S.Tanaka, Physica C 259 (1996) 295.
41.N. Chikumoto, J. Yoshioka, and M. Murakami, Physica C 291 (1997) 79.
42.S. Ikeda, T. Oka, Y. Yamada, M. Yoshikawa, Y. Yanagi, Y. Itoh and U. Mizutani, Jpn. J. Appl. Phys. Part 2 36 (1997) 345.
43.Y.M. Chiang, D. BirnieⅢ and W.D. Kingery, Physical Ceramics, John Wiley & Sons, 1997
44. R. Pinto, P.R. Apte, S.P. Pai, D. Kunar, Physica C (1993) 13
45. T. Saitoh, K. Segawa, K. Kamada, N. Sakai, T. Segawa, S.I. Yoo, M. Murakami, Physica C 288 (1997) 141
46. 戰國, 單晶粒Y-Ba-Cu-O高溫超導體之製程研究, 國立成功大學材料科學及工程學系碩士論文, 中華民國86年6月
47. E. Goodilin, M. Kambara, T. Umeda and Y. Shiohara, Physica C 289(1997)37
48. T. Izumi and Y. Shiohara, J. Mat. Res. 7(1992)16
49.S.Y. Chen, I.G. Chen, M.K. Wu, Superconductor Science and Technology 15(2002)471