Lower Tc barriers at high angle boundaries in the (BiPb) 2Sr2Ca2Cu3Ox system

Y. Yan; W. Lo; J. E. Evetts; A. M. Campbell; W. M. Stobbs

doi:10.1063/1.114430

Lower T_c barriers at high angle boundaries in the (BiPb) ₂Sr₂Ca₂Cu₃O_x system

Y. Yan, W. Lo, J. E. Evetts, A. M. Campbell, W. M. Stobbs

Nuclear Fuel Element Performance

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Abstract

The structure of high angle boundaries in the (BiPb)₂Sr ₂Ca₂Cu₃O_x system, which is compositional and structurally modulated along the boundaries, was investigated by high resolution electron microscopy. These compositional variable boundaries tend to facet onto the (001) plane, leaving steps of height equal c/2 for the (BiPb)₂Sr₂CuO_x and (BiPb)₂Sr ₂Ca₁Cu₂O_x phases with amorphous material at the corners of these steps. These data suggest a weak link is formed at high angle boundaries where there are such lower T_c or insulating phases.

Original language	English
Pages (from-to)	2554
Number of pages	1
Journal	Applied Physics Letters
Volume	67
DOIs	https://doi.org/10.1063/1.114430
State	Published - 1995

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abstract = "The structure of high angle boundaries in the (BiPb)2Sr 2Ca2Cu3Ox system, which is compositional and structurally modulated along the boundaries, was investigated by high resolution electron microscopy. These compositional variable boundaries tend to facet onto the (001) plane, leaving steps of height equal c/2 for the (BiPb)2Sr2CuOx and (BiPb)2Sr 2Ca1Cu2Ox phases with amorphous material at the corners of these steps. These data suggest a weak link is formed at high angle boundaries where there are such lower Tc or insulating phases.",

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AU - Lo, W.

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AU - Campbell, A. M.

AU - Stobbs, W. M.

PY - 1995

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N2 - The structure of high angle boundaries in the (BiPb)2Sr 2Ca2Cu3Ox system, which is compositional and structurally modulated along the boundaries, was investigated by high resolution electron microscopy. These compositional variable boundaries tend to facet onto the (001) plane, leaving steps of height equal c/2 for the (BiPb)2Sr2CuOx and (BiPb)2Sr 2Ca1Cu2Ox phases with amorphous material at the corners of these steps. These data suggest a weak link is formed at high angle boundaries where there are such lower Tc or insulating phases.

AB - The structure of high angle boundaries in the (BiPb)2Sr 2Ca2Cu3Ox system, which is compositional and structurally modulated along the boundaries, was investigated by high resolution electron microscopy. These compositional variable boundaries tend to facet onto the (001) plane, leaving steps of height equal c/2 for the (BiPb)2Sr2CuOx and (BiPb)2Sr 2Ca1Cu2Ox phases with amorphous material at the corners of these steps. These data suggest a weak link is formed at high angle boundaries where there are such lower Tc or insulating phases.

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JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Lower T_c barriers at high angle boundaries in the (BiPb) ₂Sr₂Ca₂Cu₃O_x system

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