Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sodium niobate-based lead-free ceramic dielectric material as well as preparation method and application thereof
The invention relates to a sodium niobate-based lead-free ceramic dielectric material and a preparation method and application thereof, the chemical composition of the material is (1-x) (0.85 NaNbO3-0. 15Sr0. 7Bi0. 2TiO3)-xCaHfO3 + 0.01-0.2 wt% MnCO3, x = 0-0.08, the preparation method of the material comprises the following steps: S1, selecting raw materials; s2, ball milling and uniform mixing; s3, calcining; s4, MnCO3 is added, secondary ball milling is carried out, and then drying and sieving are carried out; s5, uniformly mixing with an organic solvent, an emulsifier, a plasticizer, a binder and a dispersant; s6, preparing a ceramic membrane through a tape casting process, and then performing isostatic pressing treatment; and S7, carrying out glue discharging treatment and heat preservation, and then sintering to obtain the sodium niobate-based ceramic dielectric material. Compared with the prior art, the device has the advantages that the breakdown electric field intensity is high, the ferroelectric hysteresis loop is slender, the energy storage characteristic is excellent, and the device has great practical value for realizing lead-free, miniaturization and integration of electronic components.
本发明涉及一种铌酸钠基无铅陶瓷介质材料及其制备方法和应用，该材料的化学组成为(1‑x)(0.85NaNbO3‑0.15Sr0.7Bi0.2TiO3)‑xCaHfO3+0.01‑0.2wt％MnCO3，其中x＝0‑0.08，该材料的制备方法包括以下步骤：S1：选取原料；S2：球磨混合均匀；S3：煅烧；S4：加入MnCO3并二次球磨，后烘干过筛；S5：与有机溶剂、乳化剂、增塑剂、粘结剂和分散剂混合均匀；S6：通过流延成型工艺制备陶瓷膜，然后等静压处理；S7：排胶处理并保温，接着烧结，得到铌酸钠基陶瓷介质材料。与现有技术相比，本发明击穿电场强度高、电滞回线细长、储能特性优异，对于实现电子元器件的无铅化、小型化和集成化具有重大的实用价值。
Sodium niobate-based lead-free ceramic dielectric material as well as preparation method and application thereof
The invention relates to a sodium niobate-based lead-free ceramic dielectric material and a preparation method and application thereof, the chemical composition of the material is (1-x) (0.85 NaNbO3-0. 15Sr0. 7Bi0. 2TiO3)-xCaHfO3 + 0.01-0.2 wt% MnCO3, x = 0-0.08, the preparation method of the material comprises the following steps: S1, selecting raw materials; s2, ball milling and uniform mixing; s3, calcining; s4, MnCO3 is added, secondary ball milling is carried out, and then drying and sieving are carried out; s5, uniformly mixing with an organic solvent, an emulsifier, a plasticizer, a binder and a dispersant; s6, preparing a ceramic membrane through a tape casting process, and then performing isostatic pressing treatment; and S7, carrying out glue discharging treatment and heat preservation, and then sintering to obtain the sodium niobate-based ceramic dielectric material. Compared with the prior art, the device has the advantages that the breakdown electric field intensity is high, the ferroelectric hysteresis loop is slender, the energy storage characteristic is excellent, and the device has great practical value for realizing lead-free, miniaturization and integration of electronic components.
本发明涉及一种铌酸钠基无铅陶瓷介质材料及其制备方法和应用，该材料的化学组成为(1‑x)(0.85NaNbO3‑0.15Sr0.7Bi0.2TiO3)‑xCaHfO3+0.01‑0.2wt％MnCO3，其中x＝0‑0.08，该材料的制备方法包括以下步骤：S1：选取原料；S2：球磨混合均匀；S3：煅烧；S4：加入MnCO3并二次球磨，后烘干过筛；S5：与有机溶剂、乳化剂、增塑剂、粘结剂和分散剂混合均匀；S6：通过流延成型工艺制备陶瓷膜，然后等静压处理；S7：排胶处理并保温，接着烧结，得到铌酸钠基陶瓷介质材料。与现有技术相比，本发明击穿电场强度高、电滞回线细长、储能特性优异，对于实现电子元器件的无铅化、小型化和集成化具有重大的实用价值。
Sodium niobate-based lead-free ceramic dielectric material as well as preparation method and application thereof
一种铌酸钠基无铅陶瓷介质材料及其制备方法和应用
SHEN BO (Autor:in) / LI PEIXUAN (Autor:in) / WANG SIMIN (Autor:in) / ZHAI JIWEI (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2023