The Effect of Addition of (Al2O3) Nano Particles on Structural and Electrical Properties of Bi2Ba2Ca2Cu3O10" +δ" Superconductors at High Temperature
Kirkuk University Journal-Scientific Studies,
2020, Volume 15, Issue 4, Pages 1-18
AbstractTo enhancement the superconductor structural characteristics, nanoparticles of the Al2O3 were added to the samples under study. The Samples of high temperature superconductors 1-X (Bi2Ba2Ca2Cu3O10+ ) + X(Al2O3) with X= (0-0.9) were prepared by solid state reaction method under hydraulic pressure 8 ton/cm2 and annealing temperature 800 . Electrical properties of the samples showed that Tc increases from 126 K to 139 K, and also oxygen content in samples increased with increasing X values from 0 to 0.5, while Tc decreased less than 77 K with increasing X at values more than 0.5. In Structural properties, the X-ray diffraction of the samples showed orthorhombic phase with a=4.286A , b=5.4184A , c=35.3528A at X=0, while c-value is increased to 35.9848A at X=0.5. AFM results shows that the average grain size of the best sample was 47.67 nm at X=0.5. SEM it showed that there are dark regions related to the heavier elements, such as Bi and Cu, and light regions related to lighter elements, such as Ba and Ca, depending on atomic weights
 C. Kittel, " Introduction to solid state", 6th Ed., John Wiley and Sons, New York (1986).
 H. K. Onnes, "Further experiments with liquid helium. D. On the charge of electric resistance of pure metals at very low temperature, etc.V. the disappearance of the resistance of mercury", KNAW, Proceedings,Amsterdam, (14), 113 (1911).
 Meissner W. and Dchsenfeld R., "Higher Temperature Superconductor", Nature Science, 21, 787 (1933).
 Nasri A. Hamid, Mohd Y, Abd Rahman and Noor F. Shamsudin, "Mechanical and Superconducting proprieties of Nano size MgO added dip-coated Bi2 Sr2 Ca Cu2O8 Superconducting Tape", Natural Science, 3(6), 484 (2011).
 Asbullah M., Hamid N., Yahya S. and Azhan H., "Optimization of Flux pinning Ceners in Bi-2212 MgO Added Superconductor", 4th International Conference on Solid State Science and Technology, (2012).
 Ghazala Y. Hermiz,Bushra A.Aljuranim Md. and Ali H. Al-Beayaty, "Effect of Mn Substitution on the Superconducting Properties of Bi1.7pb0.3Sr2Ca2-xMnxCu3O10+ ", International Journal of Engineering and Advanced Technology, 3(4), 2249 (2014).
 Abdul Jabbar, Irfan Q., Khalid M. Khan, Zulqurnain A., Nadeem K., Mumtaz M., "Synthesis and superconducting properties of (Au)x/ CuTI-1223 Composites ", Journal of Alloys and Compound, 618, 110 (2015).
 Abd shukor R. and Jannah A, "Advances in Superconductivity and CO3O4Nano Particles as flex pinning center in (Bi-Pb) 2223/Ag superconductor Tapes", Alp conference proceeding, AIP Publishing LLC, USA, 1877(1), 020003 (2017).
 Alyaa H., Abdu Kareem A. and Kareem J," Influence of Simultaneous doping of Ag on the wircal Temperature and Laitice conslout of Ti1.6 Hg0.4-x AgxBa2Ca2Cu3O10 Superconductors", Alp Conference Proceedings, AIP Puplishing LLC, USA, 2123, 020079 (2019).
 S. Fathi, " Isovalent Substitution of Re in high temperature ", PhD Thesis, Baghdad University, Iraq (1993).
 A. Nihad," The partial substitution and annealing on Structural and Electrical Properties of compound Ti2-xAgxSr2-yBayCa2Cu3O10+ Superconductor Synthesized by Nano technique ", PhD Thesis, Tikrit University, Iraq (2015).
 Abbas M. and Razzaq A., "The effect of Nd Nano particles on (Bi, Pb)2223 Superconductivity", Journal of chemical and pharmaceutical science, 10, 10111(2017).
 Sh. Mahdi, " Synthesis and structural, electrical and mechanical properties of composite superconductor ", PhD Thesis, Baghdad University, Iraq (2015).
- Article View: 61
- PDF Download: 34