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Lead-free anti-ferroelectricity high-energy storage density ceramic medium material and preparation method thereof
The invention discloses an indoor temperature high-voltage anti-ferroelectricity high-energy storage density lead-free ceramic medium material and a preparation method thereof. The components of the medium material are expressed by the general formula (BixNay)AgzTi(0.98-m)O3-mBaTiO3-0.02SrZrO3+n(0.5MnO2-0.3La2O3-0.3Nb2O5), wherein x, y, z, m and n represent mole fractions; x is equal to 0.48 or 0.49; y is equal to (0.46-z), (0.44-z), (0.46-z) or (0.42-z); x and y are valued as x/y is equal to 0.48/(0.46-z), 0.48/(0.44-z), 0.49/(0.46-z), 0.49/(0.44-z), or 0.49/(0.42-z); z is larger than or equal to 0.005 and smaller than or equal to 0.01; m is larger than or equal to 0.04 and smaller than or equal to 0.09; n is larger than or equal to 0.001 and smaller than or equal to 0.02. The preparation method adopts nanometer monocrystalline particle BaTiO3 powder, obtains a multi-layer core casing structure through two-step sintering, obtains very high energy storage density and energy storage efficiency by inducing anti-ferroelectricity phase change by high field, and is simple and stable in preparation technology, and suitable for industrial popularization and application; the ceramic is an environmental-protection energy storage ceramic medium, is good in resistance to pressure, and low in depletion, and has excellent application prospect in the field of impulse high voltage power supply.
Lead-free anti-ferroelectricity high-energy storage density ceramic medium material and preparation method thereof
The invention discloses an indoor temperature high-voltage anti-ferroelectricity high-energy storage density lead-free ceramic medium material and a preparation method thereof. The components of the medium material are expressed by the general formula (BixNay)AgzTi(0.98-m)O3-mBaTiO3-0.02SrZrO3+n(0.5MnO2-0.3La2O3-0.3Nb2O5), wherein x, y, z, m and n represent mole fractions; x is equal to 0.48 or 0.49; y is equal to (0.46-z), (0.44-z), (0.46-z) or (0.42-z); x and y are valued as x/y is equal to 0.48/(0.46-z), 0.48/(0.44-z), 0.49/(0.46-z), 0.49/(0.44-z), or 0.49/(0.42-z); z is larger than or equal to 0.005 and smaller than or equal to 0.01; m is larger than or equal to 0.04 and smaller than or equal to 0.09; n is larger than or equal to 0.001 and smaller than or equal to 0.02. The preparation method adopts nanometer monocrystalline particle BaTiO3 powder, obtains a multi-layer core casing structure through two-step sintering, obtains very high energy storage density and energy storage efficiency by inducing anti-ferroelectricity phase change by high field, and is simple and stable in preparation technology, and suitable for industrial popularization and application; the ceramic is an environmental-protection energy storage ceramic medium, is good in resistance to pressure, and low in depletion, and has excellent application prospect in the field of impulse high voltage power supply.
Lead-free anti-ferroelectricity high-energy storage density ceramic medium material and preparation method thereof
ZHOU CHANGRONG (Autor:in) / XU JIWEN (Autor:in) / LI QINGNING (Autor:in) / YUAN CHANGLAI (Autor:in) / ZENG WEIDONG (Autor:in) / CHEN GUOHUA (Autor:in)
17.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
High-energy-storage-density lead-free ceramic capacitor material and preparation method thereof
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