Effect of Sequential Heat Impacts on the Formation of a Stable State of the xLPM–(1 – x)PT Multiferroic Composites
Autor: | A. V. Shabanov, E. A. Mikhaleva, M. V. Gorev, Igor N. Flerov |
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Rok vydání: | 2018 |
Předmět: |
010302 applied physics
Phase transition Materials science Sintering 02 engineering and technology Temperature cycling Atmospheric temperature range 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ferroelectricity Thermal expansion Electronic Optical and Magnetic Materials Volume (thermodynamics) visual_art 0103 physical sciences visual_art.visual_art_medium Ceramic Composite material 0210 nano-technology |
Zdroj: | Physics of the Solid State. 60:2524-2531 |
ISSN: | 1090-6460 1063-7834 |
Popis: | The effect of thermal cycling and sintering temperature on the chemical and thermodynamic stability of the bulk multiferroic xLa0.7Pb0.3MnO3–(1 – x)PbTiO3 quasi-ceramic and ceramic composites has been experimentally investigated. It is shown that the limiting temperature of the long-term sample firing should not exceed 1070 K. It has been found that sintering at this temperature and/or short-term exposure of the samples at higher temperatures (up to 1220 K) significantly increase the sample compactness, stabilize the thermal expansion, and enhance the quality of the composites. It has been established that the component grain integrity is violated by shrinkage of the samples and a sharp change in their volume during the phase transition of a ferroelectric component. |
Databáze: | OpenAIRE |
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