Document Type : Research Paper
Author
Tikrit University / College of Education
Abstract
This study included preparing samples of the compound (Bi2Ba2Ca2Cu3O10+δ) by the reaction of
the solid state under a hydrostatic pressure 8ton/cm2 and annealing temperature 850Co . These are the
best circumstances to obtain samples of the mentioned superconductivity compound at high
temperatures. The study demonstrated the X-rays diffraction for the compound
(Bi2Ba2Ca2Cu3O10+δ ) prepared at annealing temperature 850Co and pressure 9ton/cm2 . The
study showed that it has Tetragonal type of crystal structure. At partial substitution for the component
TL in Bi, and Sr component in Ba simultaneously, the compound becomes (Bi2-yTlxBa2-
ySryCa2Cu3O10+δ) with (X,Y) values equal to (X = 0.05, Y= 0.1, 0.2, 0.3). The study of the crystal
structure test showed that the structure retains on the tetragonal type, and the critical temperature Tc
steps-up from (132k) to (138k) at substitution rate (X= 0.05, Y= 0.1). But at increasing the substitution
rate for (Y) and the stability of (X) rate more than (X= 0.05, Y= 0.1), the temperature declines to
(125k). Finally, The crystal structure of the samples has been studies and tested by Scanning Electron
Microscope; knowing the components' rates in the compound; how the annealing temperature and the
imposed pressure affect the compound; how the compound partial substitution affect in the
components; and specifying the quantitative and qualitative rates of the components in the compound
Keywords
- الجمال , یحیى نوری," فیزیاء الحالة الصلبة", دار الکتب للطباعة والنشر, جامعة الموصل ,(1990) .
- Hag A. U. " The Advant of Higher Temperature Super Conducting Materials ", Science Technology and Development V. 7,3,(1988)
- الراوی , صبحی سعید, شاکر جابرب شاکر, یوسف مولود حسن, "فیزیاء الحالة الصلبة" , دار الکتب للطباعة والنشر, جامعة الموصل , (1989)
- الشاذلی , عبد الفتاح ," فیزیاء الجوامد", الدار العربیة للنشر والتوزیع , (2003).
- Gautreau R., Sarin W. ,"Modern Phyics", Mc Graw-Hill Companies, (1999).
- Omar M. A., "Elementary Solid State Physic Priciples and Applications ", Addesion- Wesley , (1975).
- Maxwell E., 'Phys. Rev.',V.78,P.477,(1950).
- Kittel C.," Introduction to Solid State Physics", 8th ed., John Wiley and Sons, Inc, (2005).
- Rohlf, "Superconductivity Concepts", Hyper Physics R. Nave, Georgia Stat University, (2005).
- Lynn J. W., " High Temperature Superconductivity ", Springer-Verlag , (1990).
- Bahoum S.A., M.Sc., Thesis University if Scince and Technology , Jordan , December, (2005).
- Tarascon J. M., Barbonx P.,, Greene L. H., Bagley B. G., 'Physica C', V.566, P.153-155 ,(1988).
- Kadham A. M., Ali A. D., 'Sept. of Phys.', No.13,P.13,(2000).
- Ginsberg D. M., "Physical Propertise of HTSC(I)", By Marker J. T., Dalichaouch Y. and Maple M. B., World Scientific, (1989).
- Sehilling A., Halliger E. 'physica', V.157,P. 144, (1989).
- Ali, Abdul-Kareem D., Ph.D. thesis, Mosul University, Feb. 2007.
- Kadham A. M., Ali A. D., 'Sept. of Phys.', No.15,P.23,(2002).
- الجمال , یحیى نوری," فیزیاء الحالة الصلبة", دار الکتب للطباعة والنشر, جامعة الموصل ,(1990) .
)
