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Pb(Mg1/3Nb2/3)O3–PbTiO3 Textured Ceramics with High Piezoelectric Response by a Novel Templated Grain Growth Approach |
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| Authors: | Harvey Amorín Hana Uršič Pablo Ramos Janez Holc Rodrigo Moreno Daniel Chateigner Jesús Ricote Miguel Algueró |
| Affiliation: | 1. Instituto de Ciencia de Materiales de Madrid, CSIC, , Cantoblanco, Madrid, 28049 Spain;2. Jozef Stefan Institute, , Ljubljana, 1000 Slovenia;3. Universidad de Alcalá, , Alcalá de Henares, 28871 Spain;4. Instituto de Cerámica y Vidrio (ICV), CSIC, , Cantoblanco, Madrid, 28049 Spain;5. UMR 6508 CRISMAT Laboratory, ENSICAEN/CNRS, IUT‐Caen, Université de Caen‐Basse Normandie, , Caen, F‐14050 France |
| Abstract: | Pb(Mg1/3Nb2/3)O3–PbTiO3 is used as a model system of perovskite solid solutions with very high piezoelectric response at tailored morphotropic phase boundaries to demonstrate the processing of textured ceramics by ceramic‐only technology. A novel homogeneous templated grain growth approach that uses conventional ceramic procedures and a single‐source nanocrystalline powder for the matrix and also for obtaining the templates is described. Two batches of (100) faceted cube‐shaped microcrystals with average sizes of 27 and 10 μm were successfully used as templates, and aligned by tape casting for the processing of <001>‐textured Pb(Mg1/3Nb2/3)O3–PbTiO3 piezoelectric ceramics. Materials with effective piezoelectric coefficients up to 1000 pC/N and ferroelectric properties approaching those of single crystals are obtained. |
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