Kinetics of Templated Grain Growth of 0.65Pb(Mg1/3Nb2/3)O3·0.35PbTiO3 |
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| Authors: | Edward M. Sabolsky Gary L. Messing Susan Trolier-McKinstry |
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| Affiliation: | Department of Materials Science and Engineering, Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802 |
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| Abstract: | Single-crystal layers of 0.65Pb(Mg1/3Nb2/3)O3·0.35PbTiO3 (PMN-35PT) were grown heteroepitaxially on {001}-BaTiO3 template crystals. A {001}-BaTiO3 crystal was embedded in a fine-grained matrix of PMN-35PT containing excess PbO and heated between 950° and 1150°C for 0–5 h. The initial growth of the PMN-35PT on the {001} surface and the growth of the matrix grains both displayed a t 1/3 dependence which is characteristic of diffusion-controlled growth. Growth was limited to ∼100–150 μm due to the significantly reduced driving force at longer times because of matrix coarsening and porosity evolution. |
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| Keywords: | kinetics grain growth lead magnesium niobates |
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