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Method for preparing microwave dielectric ceramic based on solid waste
The invention discloses a method for preparing microwave dielectric ceramic based on solid waste. The method comprises the following steps: processing sludge of an electronic factory at high temperature to prepare molten blocks, crushing the obtained molten blocks, adding water, ball-milling the components, and drying the mixture to obtain powder; quantifying the proportion of Ca and Al elements in the powder material by a chemical method, weighing the powder material, adding TiO2 and rare earth oxide into the powder material, and carrying out primary ball milling, synthesis and secondary ball milling to obtain ceramic powder; adding a binder into the ceramic powder for granulation, performing compression molding after aging, and then performing heating and plastic removal to obtain a ceramic green body; sintering the ceramic green body to obtain the ceramic wafer; and performing processing, ultrasonic cleaning, silk-screen silver printing, drying and silver firing on the ceramic wafer to obtain the microwave dielectric ceramic material. The microwave dielectric ceramic has a good dielectric constant and a resonant frequency temperature coefficient close to zero, and can be used in the field of microwave communication, circuit board substrates and the like.
本发明公开了一种基于固废制备微波介质陶瓷的方法，将电子厂淤泥在高温处理制成熔融块将得到的熔融块破碎加水球磨烘干后得到粉料；用化学法定量该粉料中Ca和Al元素的比例，称取该粉体，向其中加入TiO2与稀土氧化物，经一次球磨、合成、二次球磨得到陶瓷粉体；在陶瓷粉体中加入粘结剂造粒，陈化后压制成型，然后升温排塑，得到陶瓷坯体；将所得的陶瓷坯体烧结后得到所述的陶瓷片；将陶瓷片加工、超声清洁、丝网印银，烘干，烧银得到微波介质陶瓷材料。本发明制备的微波介质陶瓷，具有良好介电常数和接近于零的谐振频率温度系数，可以用于微波通讯领域和电路板基材等。
Method for preparing microwave dielectric ceramic based on solid waste
The invention discloses a method for preparing microwave dielectric ceramic based on solid waste. The method comprises the following steps: processing sludge of an electronic factory at high temperature to prepare molten blocks, crushing the obtained molten blocks, adding water, ball-milling the components, and drying the mixture to obtain powder; quantifying the proportion of Ca and Al elements in the powder material by a chemical method, weighing the powder material, adding TiO2 and rare earth oxide into the powder material, and carrying out primary ball milling, synthesis and secondary ball milling to obtain ceramic powder; adding a binder into the ceramic powder for granulation, performing compression molding after aging, and then performing heating and plastic removal to obtain a ceramic green body; sintering the ceramic green body to obtain the ceramic wafer; and performing processing, ultrasonic cleaning, silk-screen silver printing, drying and silver firing on the ceramic wafer to obtain the microwave dielectric ceramic material. The microwave dielectric ceramic has a good dielectric constant and a resonant frequency temperature coefficient close to zero, and can be used in the field of microwave communication, circuit board substrates and the like.
本发明公开了一种基于固废制备微波介质陶瓷的方法，将电子厂淤泥在高温处理制成熔融块将得到的熔融块破碎加水球磨烘干后得到粉料；用化学法定量该粉料中Ca和Al元素的比例，称取该粉体，向其中加入TiO2与稀土氧化物，经一次球磨、合成、二次球磨得到陶瓷粉体；在陶瓷粉体中加入粘结剂造粒，陈化后压制成型，然后升温排塑，得到陶瓷坯体；将所得的陶瓷坯体烧结后得到所述的陶瓷片；将陶瓷片加工、超声清洁、丝网印银，烘干，烧银得到微波介质陶瓷材料。本发明制备的微波介质陶瓷，具有良好介电常数和接近于零的谐振频率温度系数，可以用于微波通讯领域和电路板基材等。
Method for preparing microwave dielectric ceramic based on solid waste
一种基于固废制备微波介质陶瓷的方法
LI QINGPING (author) / WANG XIANG (author) / CUI ENTIAN (author) / YANG XIULI (author) / HUANG CAIZHI (author) / LEI DINGKUN (author) / MA HUAN (author) / HOU GUIHUA (author)
2021-12-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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