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Preparation method of barium zirconium phosphate ceramic
The invention discloses a preparation method of barium zirconium phosphate ceramic, which comprises the following steps: (1) mixing BaCO3 powder, ZrO2 powder and NH4H2PO4 powder, and carrying out low-temperature heat treatment to obtain powder A; (2) grinding the powder A again to obtain powder B, and pressing the powder B into a green body after high-temperature heat treatment; and (3) carrying out high-temperature heat treatment on the green body to obtain the barium zirconium phosphate ceramic. The zirconium and barium units are selected for composition design, and a continuous binary solidsolution is prepared; according to the method, continuous adjustment of the average thermal expansion coefficient can be achieved, the zero-expansion ceramic with the average linear expansion coefficient close to zero is obtained, the obtained barium zirconium phosphate material system has the advantage of being resistant to the high temperature of 1400 DEG C, material preparation is conducted ina continuous dry pressing forming mode, the preparation period is short, and the method is suitable for large-scale production.
本发明公开了一种磷酸锆钡陶瓷的制备方法，包括以下步骤：步骤(1)将BaCO粉末、ZrO粉末、NHHPO粉末混合，然后经低温热处理得到粉料A；步骤(2)将所述粉料A再次进行研磨制得粉料B，所述粉料B经高温热处理后压制成坯体；步骤(3)将所述坯体进行高温热处理，即可得到磷酸锆钡陶瓷。选取锆、钡单元组成设计并制备连续的二元固溶体，可以实现平均热膨胀系数的连续可调，并获得平均线膨胀系数接近零的零膨胀陶瓷，得到的磷酸锆钡材料体系具有耐1400℃高温的特点，而且通过用连续干压成型的方式进行材料制备，制备周期短，适合大规模生产。
Preparation method of barium zirconium phosphate ceramic
The invention discloses a preparation method of barium zirconium phosphate ceramic, which comprises the following steps: (1) mixing BaCO3 powder, ZrO2 powder and NH4H2PO4 powder, and carrying out low-temperature heat treatment to obtain powder A; (2) grinding the powder A again to obtain powder B, and pressing the powder B into a green body after high-temperature heat treatment; and (3) carrying out high-temperature heat treatment on the green body to obtain the barium zirconium phosphate ceramic. The zirconium and barium units are selected for composition design, and a continuous binary solidsolution is prepared; according to the method, continuous adjustment of the average thermal expansion coefficient can be achieved, the zero-expansion ceramic with the average linear expansion coefficient close to zero is obtained, the obtained barium zirconium phosphate material system has the advantage of being resistant to the high temperature of 1400 DEG C, material preparation is conducted ina continuous dry pressing forming mode, the preparation period is short, and the method is suitable for large-scale production.
本发明公开了一种磷酸锆钡陶瓷的制备方法，包括以下步骤：步骤(1)将BaCO粉末、ZrO粉末、NHHPO粉末混合，然后经低温热处理得到粉料A；步骤(2)将所述粉料A再次进行研磨制得粉料B，所述粉料B经高温热处理后压制成坯体；步骤(3)将所述坯体进行高温热处理，即可得到磷酸锆钡陶瓷。选取锆、钡单元组成设计并制备连续的二元固溶体，可以实现平均热膨胀系数的连续可调，并获得平均线膨胀系数接近零的零膨胀陶瓷，得到的磷酸锆钡材料体系具有耐1400℃高温的特点，而且通过用连续干压成型的方式进行材料制备，制备周期短，适合大规模生产。
Preparation method of barium zirconium phosphate ceramic
一种磷酸锆钡陶瓷的制备方法
LIU RUIXIANG (author) / WANG KAIYU (author) / ZHANG LEI (author) / SUI XUEYE (author) / ZHOU CHANGLING (author) / CHENG ZHIQIANG (author) / WANG ZHONGHAI (author)
2020-09-04
Patent
Electronic Resource
Chinese
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