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Anti-reduction BaTiO3-based dielectric ceramic and preparation method thereof
The invention discloses an anti-reduction BaTiO3-based dielectric ceramic and a preparation method thereof. According to the dielectric ceramic, BaTiO3 is used as a base material; Co2O3 and CaCO3 areused as auxiliary agents, the chemical expression of the dielectric ceramic is (1-x)BaTiO<3-x>Co2O<3-y>CaCO3, x is equal to 0.1-0.2, y is equal to 1-2wt.%, and y represents the percentage content of the mass of CaCO3 in the total mass of BaTiO3 and Co2O3. The preparation method comprises the following steps: weighing materials according to a chemical expression, and then carrying out ball milling,drying, presintering, secondary ball milling and drying to obtain ceramic powder; and adding a binder into the ceramic powder, granulating, sieving, aging, carrying out compression molding to obtaina ceramic green body, carrying out glue discharge treatment, and finally sintering in a reducing atmosphere to obtain the anti-reduction BaTiO3-based dielectric ceramic. The dielectric ceramic has theadvantages of simple components, simple preparation process, low cost and good reduction resistance.
本发明公开了一种抗还原BaTiO基介质陶瓷。该介质陶瓷以BaTiO为基体材料，CoO和CaCO为辅助剂，其化学表达式为(1‑x)BaTiO‑xCoO‑yCaCO，其中x＝0.1～0.2，y＝1～2wt.％，y代表CaCO质量占BaTiO和CoO总质量的百分含量。其制备为：根据化学表达式称量物料，然后球磨、烘干、预烧、二次球磨、烘干，得到陶瓷粉体；将陶瓷粉体中加入粘结剂进行造粒过筛，陈化后压制成型获得陶瓷生坯，进行排胶处理后，最后在还原气氛下烧结，获得抗还原BaTiO基介质陶瓷。该介质陶瓷组分简单，制备工艺简单，成本低廉，具有良好的抗还原性能。
Anti-reduction BaTiO3-based dielectric ceramic and preparation method thereof
The invention discloses an anti-reduction BaTiO3-based dielectric ceramic and a preparation method thereof. According to the dielectric ceramic, BaTiO3 is used as a base material; Co2O3 and CaCO3 areused as auxiliary agents, the chemical expression of the dielectric ceramic is (1-x)BaTiO<3-x>Co2O<3-y>CaCO3, x is equal to 0.1-0.2, y is equal to 1-2wt.%, and y represents the percentage content of the mass of CaCO3 in the total mass of BaTiO3 and Co2O3. The preparation method comprises the following steps: weighing materials according to a chemical expression, and then carrying out ball milling,drying, presintering, secondary ball milling and drying to obtain ceramic powder; and adding a binder into the ceramic powder, granulating, sieving, aging, carrying out compression molding to obtaina ceramic green body, carrying out glue discharge treatment, and finally sintering in a reducing atmosphere to obtain the anti-reduction BaTiO3-based dielectric ceramic. The dielectric ceramic has theadvantages of simple components, simple preparation process, low cost and good reduction resistance.
本发明公开了一种抗还原BaTiO基介质陶瓷。该介质陶瓷以BaTiO为基体材料，CoO和CaCO为辅助剂，其化学表达式为(1‑x)BaTiO‑xCoO‑yCaCO，其中x＝0.1～0.2，y＝1～2wt.％，y代表CaCO质量占BaTiO和CoO总质量的百分含量。其制备为：根据化学表达式称量物料，然后球磨、烘干、预烧、二次球磨、烘干，得到陶瓷粉体；将陶瓷粉体中加入粘结剂进行造粒过筛，陈化后压制成型获得陶瓷生坯，进行排胶处理后，最后在还原气氛下烧结，获得抗还原BaTiO基介质陶瓷。该介质陶瓷组分简单，制备工艺简单，成本低廉，具有良好的抗还原性能。
Anti-reduction BaTiO3-based dielectric ceramic and preparation method thereof
一种抗还原BaTiO基介质陶瓷及其制备方法
HAO HUA (Autor:in) / ZHANG DONGSHENG (Autor:in) / LIU YIREN (Autor:in) / CAO MINGHE (Autor:in) / YAO ZHONGHUA (Autor:in) / LIU HANXING (Autor:in)
14.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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