Tracer diffusion of Ag in Bi[sub 2]Sr[sub 2]Ca[sub [ital n][minus]1]Cu[sub [ital n]]O[sub 2[ital n]+4]

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.356983· OSTI ID:5446659

Fang, Y ^[1]; Routbort, J L ^[2]

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1. Energy Technology Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Tracer diffusion of Ag in the [ital c] direction of single crystal Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub [ital x]] (2212), and in dense polycrystalline Bi[sub 2]Sr[sub 2]CuO[sub [ital x]] (2201) and (Bi,Pb)[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub [ital x]] (2223) has been investigated. Concentration profiles were measured by secondary-ion mass spectrometry and by a radiotracer serial-sectioning technique for the single and polycrystals, respectively. The diffusion coefficients of Ag in the [ital c] direction of 2212 at 500 and 600 [degree]C at one atmosphere of oxygen are approximately four orders of magnitude smaller than those previously measured in 2212 polycrystals by [Y. Fang, S. Danyluk, K. C. Goretta, N. Chen, M. Runde, S. J. Rothman, and J. L. Routbort, Appl. Phys. Lett. [bold 60], 2291 (1992)]. The volume diffusivity of [sup 110]Ag in 2223 is given by [ital D]=6.7[times]10[sup 7] exp[([minus]334[plus minus]12 kJ/mol/RT)] cm[sup 2]/s at temperatures from 600 to 817 [degree]C, and is not very sensitive to oxygen partial pressure between 10[sup 3] and 10[sup 5] Pa at 760 [degree]C. The diffusion coefficient of [sup 110]Ag in 2201 is described by [ital D]=155 exp[([minus]196[plus minus]6 kJ/mol)/RT].

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5446659
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 75:1; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DAYS LIVING RADIOISOTOPES
DIFFUSION
ELECTRON CAPTURE RADIOISOTOPES
HIGH-TC SUPERCONDUCTORS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
MASS SPECTROSCOPY
MASS TRANSFER
NUCLEI
ODD-ODD NUCLEI
OXIDES
OXYGEN COMPOUNDS
POLYCRYSTALS
PRESSURE DEPENDENCE
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILVER 110
SILVER ISOTOPES
SPECTROSCOPY
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TRACER TECHNIQUES
TRANSITION ELEMENT COMPOUNDS