Abstract
The low critical current densities of high-Tc superconductors materials can be related to the microstructural imperfections such as pores and microcracks, which reduce the effective current carrying cross section.
The present work examines the characterisation of the state of microstructure and its evolution during thermal treatment of Bi2Sr2Ca1Cu2O8. The dilatometric analysis was used to study the shrinkage mechanism during sintering. The microstructure of the sintered samples was characterised in terms of pores distribution and apparent density. Open porosity was measured by mercury porosimeter.
In order to compare the results, ultrasonic characterisation such as the longitudinal and transverse wave velocities in the ceramic was carried out. From an ultrasonic point of view, these microstructural features act as inhomogeneities and the ultrasonic parameters will depend on the geometrical arrangement of microstructure (pores have an effect both on Young’s modulus and attenuation).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bernodz JG, Muller KA (1986) Z Phys B 64:189
Chu PH, Hor PH, Meng RL, Gao L, Huang ZJ, Wang YQ, Huang CJ (1987) Phys Rev Lett 58:911
Maeda M, Tanaka Y, Fukukum M, Asano T (1988) Jpn J Appl Phys 27:L209
Nes OM, Fossheim K, Motolura N, Kitazawa K (1991) Physica C 185–189:1391
Wu C-T, Goretta Kc, Poeppel RB (1993) Appl Supercond 1(1/2):33
Yasuko Torii, Hirokazu, Hiromi Takei, Kouji Tada (1990) Jpn J Appl Phys 29(6):L 952
Guerioune M, Boudour A, Boumaïza Y (1998) congrès Euro méditerranéen. Nantes, France
Eva Dresder-Krasicka (1990) Review of Progress in Qualitative N.D.E., vol 9
Munro RG (1999) In: Poole CP (ed) Handbook of superconductivity, Academic Press, New York, pp 570–625
Alford NMcN, Birchall JD, Clegg WJ, Harmer MA, Kendall K (1988) J Mater Sci 23:761
Phani KK, Niyogi SK (1986) J Mater Sci Lett 5:427
Blendel JE, Chiang CK, Crammer DC, Freiman SW, Fuller ER Jr, Drescher-Krasicka E, Johnson WL, Ledbetter HM, Bennet LH, Swartzendriber LJ, Marinenko RB, Mykebust RL, Bright DS, Newbery DE (1987) Adv Ceram Mater 2:512
Roth DJ, Dolhert LE (1990) Mater Eval 45:958
Mukhopadhyay AK, Phani KK (2000) J Eur Ceram Soc 20:29
Round R, Bridge B (1987) J Mater Sci Lett 6:1471
Dong J, Deng T, Li F, Yao Y (1990) Phys Rev B 42:301
Chang F, Ford PJ, Saunders GA, Jiaqiang Li, Almond DP, Chapman B, Cankurtaran M, Poeppel RB, Goretta KC (1993) Supercond Sci Technol 6:484
Ravinder Reddy R, Muralidhar M, Hari Babu V, Venugopal Reddy P (1995) Supercond Sci Technol 8:101
Reddy PV, Murakami M (1999) Modern Phys Lett B 13(8):261
Chandra Sekhar M, Gopala Krishna B, Ravinder Reddy R, Venugopal Reddy P, Suryanarayana SV (1995) Supercond Sci Technol 9:29
Ahn Beam-Shu (2002) Bull Korean Chem Soc 23:1304
Briggs A (1992) Acoustic microscopy. Clarendon Press, Oxford
Ledbetter H, Minglei T, Sudookkim N (1990) Phase Trans 23:61
Anderson A, Russel GJ (1991) Physica C 185–189:1389
Gigot V, Cros B, Saurel JM (1999) Acta Acoustica 85:346
Cros B, Gigot V, Despaux G (1997) Appl Surf Sci 119:242
Guerioune M (1994) Thèse Doctorat d’Etat es science, Université de Annaba, pp 52–58
Kushibiki J, Chubachi N (1985) Electronic Lett 19(10):359
David W, Johonson JR, Warren W. Rodes (1989) J Am Ceram Soc 72(12):2346
Tsukahara Y, Neron C, Jen CK, Kushibiki J (1993) Ultrasonic Symposium, 593
Brunet N, Cros B, Despaux G, Saurel JM (1998) Eur J Appl Phys 2:209
Sheppard CGR, Wilson T (1981) Appl Phys Lett 38:858
Boumaiza Y, Hadjoub Z, Doghmane A, Deboub L (1999) J Mat Sc Lett 18:295
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chakri, NE., Benaldjia, A., Amara, A. et al. Microscopic structural evolution in terms of porosity in high-Tc superconductors. J Mater Sci 42, 3419–3424 (2007). https://doi.org/10.1007/s10853-006-1201-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-006-1201-6