A 20-resolved hadox study of BaTiO3 |
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| Authors: | A Brokman R Shneck |
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| Institution: | 1. Division of Applied Physics , Materials Science Graduate School of Applied Science and Technology Hebrew University , Jerusalem, 9 1904, Israel;2. Department of Materials , Engineering Ben-Gurion University , Beer-Sheba, Israel |
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| Abstract: | The fine structure of YBaCu3O7 is examined: Twin organization, planar defects, and structural phase co-existence are discussed in the context of the tetragonal to orthorhombic transformation. Heterogeneous nucleation of an insulating phase at the twin boundary and sub-grain boundaries is demonstrated. On the basis of the morphological observations, the transformation is classified as martensitic. Considering the role of twin in relieving the martensitic transformation strain, by producing a low strain energy habit plane, the feasibility of the formation of a twinless structure is discussed. |
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| Keywords: | Superconductors YBa2Cu3O7 |
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