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Hafnium modified sodium bismuth titanate-based lead-free ceramic dielectric material as well as preparation method and application thereof
The invention relates to a hafnium modified sodium bismuth titanate-based lead-free ceramic dielectric material as well as a preparation method and application thereof. The chemical composition of the ceramic dielectric material is (Na < 0.5 > Bi < 0.5 >) < 0.65 > (Sr < 0.7 > Bi < 0.2 >) Ti < 1-x > Hf < x > O < 3 >, wherein x is equal to 0-0.20 (not 0). The disorder degree of B-site ions of the material can be improved through ion doping modification of Hf ions, so that the relaxation characteristic of the material is improved, and the energy storage performance is enhanced. According to the hafnium modified sodium bismuth titanate-based lead-free ceramic prepared by the preparation method disclosed by the invention, industrial mass production is easily realized by adopting a tape casting process in the preparation process, and the hafnium modified sodium bismuth titanate-based lead-free ceramic has great significance for replacing a lead-based energy storage ceramic medium and is expected to be widely applied to multiple fields such as laser, radar, mobile communication, aerospace and the like.
本发明涉及一种铪改性钛酸铋钠基无铅陶瓷介质材料及其制备方法和应用。所述陶瓷介质材料的化学组成为(Na0.5Bi0.5)0.65(Sr0.7Bi0.2)Ti1‑xHfxO3，其中x＝0‑0.20(不为0)。Hf离子通过离子掺杂改性可以提高材料B位离子无序度，进而提高材料的弛豫特性增强储能性。本发明制备的铪改性钛酸铋钠基无铅陶瓷在制备过程中采用的流延成型工艺容易实现工业化大批量生产，对于取代铅基储能陶瓷介质具有重大意义，有望在激光、雷达、移动通信、航空航天等众多领域中得到广泛的应用。
Hafnium modified sodium bismuth titanate-based lead-free ceramic dielectric material as well as preparation method and application thereof
The invention relates to a hafnium modified sodium bismuth titanate-based lead-free ceramic dielectric material as well as a preparation method and application thereof. The chemical composition of the ceramic dielectric material is (Na < 0.5 > Bi < 0.5 >) < 0.65 > (Sr < 0.7 > Bi < 0.2 >) Ti < 1-x > Hf < x > O < 3 >, wherein x is equal to 0-0.20 (not 0). The disorder degree of B-site ions of the material can be improved through ion doping modification of Hf ions, so that the relaxation characteristic of the material is improved, and the energy storage performance is enhanced. According to the hafnium modified sodium bismuth titanate-based lead-free ceramic prepared by the preparation method disclosed by the invention, industrial mass production is easily realized by adopting a tape casting process in the preparation process, and the hafnium modified sodium bismuth titanate-based lead-free ceramic has great significance for replacing a lead-based energy storage ceramic medium and is expected to be widely applied to multiple fields such as laser, radar, mobile communication, aerospace and the like.
本发明涉及一种铪改性钛酸铋钠基无铅陶瓷介质材料及其制备方法和应用。所述陶瓷介质材料的化学组成为(Na0.5Bi0.5)0.65(Sr0.7Bi0.2)Ti1‑xHfxO3，其中x＝0‑0.20(不为0)。Hf离子通过离子掺杂改性可以提高材料B位离子无序度，进而提高材料的弛豫特性增强储能性。本发明制备的铪改性钛酸铋钠基无铅陶瓷在制备过程中采用的流延成型工艺容易实现工业化大批量生产，对于取代铅基储能陶瓷介质具有重大意义，有望在激光、雷达、移动通信、航空航天等众多领域中得到广泛的应用。
Hafnium modified sodium bismuth titanate-based lead-free ceramic dielectric material as well as preparation method and application thereof
一种铪改性钛酸铋钠基无铅陶瓷介质材料及其制备方法和应用
WANG SIMIN (Autor:in) / SHEN BO (Autor:in) / LI YANXIA (Autor:in) / ZHAI JIWEI (Autor:in)
28.05.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024