A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to lead-based piezoelectric ceramic and a preparation method thereof. The preparation method of the lead-based piezoelectric ceramic comprises the following steps: providing a lead-based piezoelectric ceramic green body; arranging a sealing layer on the periphery of the lead-based piezoelectric ceramic green body to obtain a sintering precursor; solid-phase sintering is conducted on the sintering precursor, in the solid-phase sintering process, ceramic forming is preferentially conducted on the sealing layer, the sintering precursor is sealed in the sealing layer, and a sintering product is obtained; and removing the sealing layer to obtain the lead-based piezoelectric ceramic. The preparation method of the lead-based piezoelectric ceramic is simple in process, and in the solid-phase sintering process, the sealing layer is preferentially formed into ceramic, and the sintering precursor is sealed in the sealing layer, so that lead can be prevented from being volatilized into air, and harm to human health is avoided. The invention also relates to the lead-based piezoelectric ceramic prepared by the preparation method of the lead-based piezoelectric ceramic.
本发明涉及一种铅基压电陶瓷及其制备方法。铅基压电陶瓷的制备方法包括如下步骤：提供铅基压电陶瓷坯体；在铅基压电陶瓷坯体的外围设置密封层，得到烧结前驱体；对烧结前驱体进行固相烧结，固相烧结过程中，密封层优先成瓷，将烧结前驱体封闭于所述密封层的内部，得到烧结产物；以及去除密封层，得到铅基压电陶瓷。上述铅基压电陶瓷的制备方法工艺简单，固相烧结过程中，由于密封层优先成瓷，将烧结前驱体封闭于密封层的内部，因而能够抑制铅挥发到空气中，从而避免对人身健康造成危害。本发明还涉及一种采用上述铅基压电陶瓷的制备方法制备得到的铅基压电陶瓷。
The invention relates to lead-based piezoelectric ceramic and a preparation method thereof. The preparation method of the lead-based piezoelectric ceramic comprises the following steps: providing a lead-based piezoelectric ceramic green body; arranging a sealing layer on the periphery of the lead-based piezoelectric ceramic green body to obtain a sintering precursor; solid-phase sintering is conducted on the sintering precursor, in the solid-phase sintering process, ceramic forming is preferentially conducted on the sealing layer, the sintering precursor is sealed in the sealing layer, and a sintering product is obtained; and removing the sealing layer to obtain the lead-based piezoelectric ceramic. The preparation method of the lead-based piezoelectric ceramic is simple in process, and in the solid-phase sintering process, the sealing layer is preferentially formed into ceramic, and the sintering precursor is sealed in the sealing layer, so that lead can be prevented from being volatilized into air, and harm to human health is avoided. The invention also relates to the lead-based piezoelectric ceramic prepared by the preparation method of the lead-based piezoelectric ceramic.
本发明涉及一种铅基压电陶瓷及其制备方法。铅基压电陶瓷的制备方法包括如下步骤：提供铅基压电陶瓷坯体；在铅基压电陶瓷坯体的外围设置密封层，得到烧结前驱体；对烧结前驱体进行固相烧结，固相烧结过程中，密封层优先成瓷，将烧结前驱体封闭于所述密封层的内部，得到烧结产物；以及去除密封层，得到铅基压电陶瓷。上述铅基压电陶瓷的制备方法工艺简单，固相烧结过程中，由于密封层优先成瓷，将烧结前驱体封闭于密封层的内部，因而能够抑制铅挥发到空气中，从而避免对人身健康造成危害。本发明还涉及一种采用上述铅基压电陶瓷的制备方法制备得到的铅基压电陶瓷。
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