Chemical durability of high-temperature superconductor YBa2Cu3O7-x in aqueous environments

Bansal, Narottam P.; Sandkuhl, Ann L.
January 1988
Applied Physics Letters;1/25/1988, Vol. 52 Issue 4, p323
Academic Journal
The stability of YBa2Cu3O7-x in water and 100% humidity has been investigated at three temperatures using pH measurements, x-ray diffraction, and scanning electron microscopy. The oxide-ceramic superconductor is highly unstable and reacts rapidly with water and also degrades in moisture. Dissolution of the oxide perovskite in water is highly incongruent. The corrosion products are found to be BaCO3, CuO, O2, etc. Barium hydroxide is first formed which further reacts with atmospheric CO2 to form needle-shaped crystals of BaCO3. For any practical applications, devices made from these materials would have to be protected with an impermeable coating to prevent deterioration from atmosphere.


Related Articles

  • Laser zone-melted Bi-Sr-Ca-Cu-O thick films. Levinson, M.; Shah, S. S. P.; Wang, D. Y. // Applied Physics Letters;10/16/1989, Vol. 55 Issue 16, p1683 

    Directionally solidified superconducting Bi-Sr-Ca-Cu-O thick films have been fabricated by laser zone melting. Highly aligned grain structures were obtained. Films with no post-processing anneal showed Tc(R=0)=82 K and transport critical current densities Jc as high as 450 A/cm2 at 77 K and 5400...

  • Nanoscale Morphological Features in the Structural Evolution of HTSC Films of Organometallic Aerosols. Tomashpol'skii, Yu. Ya.; Sadovskaya, N. V. // Crystallography Reports;Nov2005, Vol. 50 Issue 6, p1012 

    The evolution of the formation of a structure in high-temperature superconducting Bi2Sr2CaCu2O8 films obtained from organometallic aerosols is investigated by atomic force microscopy and scanning electron microscopy. Nanoscale granular supramolecular structures were found for the first time in...

  • The Effect of Silver Substitution in BiPbSrCaAgCuO. Şakiroğlu, Serpil; Kocabaş, Kemal // Journal of Superconductivity & Novel Magnetism;May2011, Vol. 24 Issue 4, p1321 

    The effect of Ag substitution on the properties of high-temperature superconductor BiPbSrCaAgCuO system have been investigated. The electrical and structural properties of the samples, prepared by the conventional solid-state reaction method, have been characterized by X-ray diffraction (XRD),...

  • Microstructure of YBa2Cu3O7− x Films. Khuanbai, E.; Ibraev, N.; Kargin, D. // Russian Physics Journal;Jun2005, Vol. 48 Issue 6, p663 

    The article examines the microstructure and chemical composition of the YBa2Cu3O7-x films deposited by the laser ablation technique using scanning electron microscopy. The films were evaporated using synchronous sputtering of the hot-pressed cylindrical samples made from the high temperature...

  • Highly textured bismuth-containing high-temperature superconductor ceramics obtained by uniaxial pressing in liquid medium: Fabrication and properties. Petrov, M. I.; Balaev, D. A.; Belozerova, I. L.; Vasil'ev, A. D.; Gokhfel'd, D. M.; Mart'yanov, O. N.; Popkov, S. I.; Shaihutdinov, K. A. // Technical Physics Letters;Sep2007, Vol. 33 Issue 9, p740 

    A new method of fabricating textured ceramics with a composition of Bi1.8Pb0.3Sr1.9Ca2Cu3Ox is described, according to which the initial low-density ceramics is subjected to uniaxial pressing in a liquid medium followed by drying and annealing. Analysis of the X-ray diffraction and scanning...

  • Influence of BaZrO Amount on Microstructure and Properties in YBaCuO Films Prepared by TFA-MOD Process. Fazhu Ding; Hongwei Gu; Teng Zhang // Journal of Superconductivity & Novel Magnetism;May2011, Vol. 24 Issue 4, p1353 

    Epitaxial YBaCuO/BaZrO films were prepared by complex metal-organic solutions including Y, Ba and Cu anhydrous trifluoroacetate precursors and Zr acetylacetonate precursors. The influence of the amount of BaZrO (BZO) on the structure and properties of YBaCuO (YBCO) films was systematically...

  • Synthesis, Microstructure, and the Transport and Magnetic Properties of Bi-containing High-Temperature Superconductors with a Porous Structure. Petrov, M.I.; Tetyuena, T.N.; Kveglis, L.I.; Efremov, A.A.; Zeer, G.M.; Shaihutdinov, K.A.; Balaev, D.A.; Popkov, S.I.; Ovchinnikov, S.G. // Technical Physics Letters;Dec2003, Vol. 29 Issue 12, p986 

    Preliminary data on the synthesis and physical properties of polycrystalline Bi[sub 1.8]Pb[sub 0.3]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub x] high-temperature superconductors of low density with a foam-like microstructure are reported. © 2003 MAIK “Nauka / Interperiodica”.

  • The Effect of Barium Doping on the Selective Structure of Bi-2223 Phase. Salamati, Hadi; Kameli, Parviz; Morshedloo, Toktam; Abdolhosseini, Ismaeil; Ahmadvand, Hossein; Baghi, Marzieh; Koohani, Hossein; Beirami, Hadi // Journal of Superconductivity & Novel Magnetism;May2011, Vol. 24 Issue 4, p1267 

    The partial substitution of Sr by Ba in the two nominal compositions of BiPbSrBaCaCuO [ x=0.0, 0.1, 0.2, and 0.3 (A group)] and BiPbSrBaCaCuO [ x=0.0, 0.1, 0.2, 0.3, 0.4, and 0.5 (B group)] have been investigated by resistivity, ac susceptibility measurements and by XRD and SEM analysis. In...

  • Effect of Nano-Sized ZnO on the Physical Properties of (CuTlPb)BaCaCuO. Elokr, M. M.; Awad, R.; Abd El-Ghany, Asmaa; Abou Shama, A.; Abd El-wanis, A. // Journal of Superconductivity & Novel Magnetism;May2011, Vol. 24 Issue 4, p1345 

    High-temperature superconductor phase of (CuTlPb)-1223 was synthesized by solid-state reaction technique and characterized using X-ray powder diffraction (XRD). XRD analysis revealed that the prepared sample was nearly monophase and exhibited tetragonal structure with space group P4/mmm....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics