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发明公开
CN105294093A 具PBO玻璃相隔离阻挡层的BTO/NZFO复相陶瓷及其制备方法 有权

具PBO玻璃相隔离阻挡层的BTO/NZFO复相陶瓷及其制备方法
摘要：
本发明公开了一种以PBO玻璃相为隔离阻挡层的BTO/NZFO复相陶瓷及其制备方法，该BTO/NZFO复相陶瓷的复合颗粒表面包裹有PBO玻璃相，采用低活性前驱体共烧法制备，步骤为：先用溶胶-凝胶法制备得到BTO/NZFO复合原料粉体，然后将其进行预烧结，再进行去活性烧结，获得已经结晶的具有低反应活性的BTO/NZFO复合粉体。将该复合粉体与PBO玻璃粉混合，进行共烧，得到以PBO玻璃相为隔离阻挡层的BTO/NZFO复相陶瓷。本发明的复相陶瓷具有巨介电常数、较高的磁导率和较低的介电损耗。本发明制备工艺简单，可批量生产，得到的复相陶瓷性能结构稳定、性能优异，有望应用于工业领域。
摘要（英）：

The invention discloses a BTO/NZFO multiphase ceramic having a PBO glass phase isolation barrier layer and a preparation method thereof. The composite particle surface of the BTO/NZFO multiphase ceramic is coated with a PBO glass phase, a low-activity precursor co-sintering is employed for preparing the multiphase ceramic, the preparation method comprises the following steps: employing a sol-gel method to prepare BTO/NZFO composite raw material powder, then pre-sintering the powder and performing active sintering to obtain the crystallized BTO/NZFO composite powder with low reaction activity, and mixing the composite powder and PBO glass powder for co-sintering the powder to obtain the BTO/NZFO multiphase ceramic having the PBO glass phase isolation barrier layer. The BTO/NZFO multiphase ceramic having the PBO glass phase isolation barrier layer has giant dielectric constant, high magnetic permeability and low dielectric loss. The preparation method is simple, and batch production of the BTO/NZFO multiphase ceramic is realized, the BTO/NZFO multiphase ceramic has stable performance and structure, and excellent performance, and is hopeful for industrial field.

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