Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-dielectric low-loss doped barium calcium titanate ceramic and preparation method thereof
The invention relates to a high-dielectric low-loss doped barium calcium titanate ceramic and a preparation method thereof, and belongs to the technical field of inorganic non-metallic materials. The lead-free, non-volatile and toxic element-free doped barium calcium titanate ceramic is prepared by adopting a traditional solid-phase reaction method, the chemical formula is Ba0. 70Ca0. 30Ti1-x (Nb0. 5Fe0. 5) xO3, x is the mole number of (Nb0. 5Fe0. 5) 4 < + > and is larger than or equal to 0.04 and smaller than or equal to 0.06, and the material is simple in preparation process, low in cost, low in sintering temperature (1230-1300 DEG C), larger than 4100 in room temperature relative dielectric constant and low in dielectric loss (tan delta lt below 1kHz); 0.037), the dielectric temperature stability is good (the change rate 1t of the relative dielectric constant along with the temperature in the range of room temperature to 200 DEG C; the preparation method is suitable for preparing a high-energy density memory and a high-capacity capacitor, and has a relatively high industrial application value.
本发明涉及一种高介电低损耗掺杂钛酸钡钙陶瓷及其制备方法，属于无机非金属材料技术领域。本发明采用传统的固相反应法制备得到无铅、无挥发性且不含有毒元素的掺杂钛酸钡钙陶瓷，化学式为Ba0.70Ca0.30Ti1‑x(Nb0.5Fe0.5)xO3，其中x为(Nb0.5Fe0.5)4+的摩尔数，x的范围为0.04≤x≤0.06，该材料的制备工艺简单、成本低廉、烧结温度低(1230～1300℃)、室温相对介电常数大于4100、介电损耗低(1kHz以下tanδ<0.037)、介电温度稳定性良好(室温～200℃范围内相对介电常数随温度的变化率<35％)，适用于制备高能量密度存储器和大容量电容器，具有较高的工业应用价值。
High-dielectric low-loss doped barium calcium titanate ceramic and preparation method thereof
The invention relates to a high-dielectric low-loss doped barium calcium titanate ceramic and a preparation method thereof, and belongs to the technical field of inorganic non-metallic materials. The lead-free, non-volatile and toxic element-free doped barium calcium titanate ceramic is prepared by adopting a traditional solid-phase reaction method, the chemical formula is Ba0. 70Ca0. 30Ti1-x (Nb0. 5Fe0. 5) xO3, x is the mole number of (Nb0. 5Fe0. 5) 4 < + > and is larger than or equal to 0.04 and smaller than or equal to 0.06, and the material is simple in preparation process, low in cost, low in sintering temperature (1230-1300 DEG C), larger than 4100 in room temperature relative dielectric constant and low in dielectric loss (tan delta lt below 1kHz); 0.037), the dielectric temperature stability is good (the change rate 1t of the relative dielectric constant along with the temperature in the range of room temperature to 200 DEG C; the preparation method is suitable for preparing a high-energy density memory and a high-capacity capacitor, and has a relatively high industrial application value.
本发明涉及一种高介电低损耗掺杂钛酸钡钙陶瓷及其制备方法，属于无机非金属材料技术领域。本发明采用传统的固相反应法制备得到无铅、无挥发性且不含有毒元素的掺杂钛酸钡钙陶瓷，化学式为Ba0.70Ca0.30Ti1‑x(Nb0.5Fe0.5)xO3，其中x为(Nb0.5Fe0.5)4+的摩尔数，x的范围为0.04≤x≤0.06，该材料的制备工艺简单、成本低廉、烧结温度低(1230～1300℃)、室温相对介电常数大于4100、介电损耗低(1kHz以下tanδ<0.037)、介电温度稳定性良好(室温～200℃范围内相对介电常数随温度的变化率<35％)，适用于制备高能量密度存储器和大容量电容器，具有较高的工业应用价值。
High-dielectric low-loss doped barium calcium titanate ceramic and preparation method thereof
一种高介电低损耗掺杂钛酸钡钙陶瓷及其制备方法
LI CAIXIA (Autor:in) / WANG WANRU (Autor:in) / LIU YIFAN (Autor:in) / WANG ZEYU (Autor:in) / ZHAO YIWEN (Autor:in) / YANG SEN (Autor:in) / WANG XIANGYI (Autor:in)
05.08.2022
Patent
Elektronische Ressource
Chinesisch
Co-doped barium titanate ceramic dielectric material, preparation method and application thereof
| Europäisches Patentamt | 2022
Nanocrystalline barium titanate dielectric ceramic, preparation method thereof and ceramic capacitor
| Europäisches Patentamt | 2024
Co-doped barium titanate ceramic dielectric material and application thereof
| Europäisches Patentamt | 2024
High-tunability barium titanate-based dielectric ceramic material and preparation method thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2023