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Preparation method of potassium tantalate niobate ceramic chip with adjustable dielectric constant
The invention belongs to the field of inorganic non-metallic materials, and relates to preparation of artificial crystals and functional ceramic materials, in particular to a preparation method of a potassium tantalate niobate ceramic chip with an adjustable dielectric constant. The preparation method comprises the steps of sintering and pre-synthesizing tantalum pentoxide, niobium pentoxide and potassium carbonate to obtain a polycrystal material, and crushing and grinding the polycrystal material, then adding a binder to perform wax frying granulation, and then sequentially performing dry pressing to obtain a sheet, heating to remove glue, and sintering into ceramic to obtain the potassium tantalate niobate ceramic chip, wherein excessive potassium carbonate is added, the sintering pre-synthesis temperature is 700-800 DEG C, and the sintering process of sintering into ceramic is carried out according to a set temperature program. The potassium tantalate niobate ceramic chip prepared by the method is relatively high in purity, good in crystallization, relatively large in size and relatively high in dielectric constant, and the dielectric constant can be adjusted according to requirements.
本发明属于无机非金属材料领域，涉及人工晶体及功能陶瓷材料制备，具体涉及一种介电常数可调的钽铌酸钾陶瓷片的制备方法，将五氧化二钽、五氧化二铌和碳酸钾进行烧结预合成获得多晶料，将多晶料进行破碎研磨，再加入粘结剂进行炒蜡造粒，然后依次干压成片、加热排胶、烧结成瓷即得钽铌酸钾陶瓷片；其中，碳酸钾过量添加，烧结预合成的温度为700～800℃，烧结成瓷的烧结过程按设定温度程序进行。本发明制备的钽铌酸钾陶瓷片纯度较高、结晶良好、尺寸较大，而且具有更高的介电常数，而且能够依据需求进行调节介电常数。
Preparation method of potassium tantalate niobate ceramic chip with adjustable dielectric constant
The invention belongs to the field of inorganic non-metallic materials, and relates to preparation of artificial crystals and functional ceramic materials, in particular to a preparation method of a potassium tantalate niobate ceramic chip with an adjustable dielectric constant. The preparation method comprises the steps of sintering and pre-synthesizing tantalum pentoxide, niobium pentoxide and potassium carbonate to obtain a polycrystal material, and crushing and grinding the polycrystal material, then adding a binder to perform wax frying granulation, and then sequentially performing dry pressing to obtain a sheet, heating to remove glue, and sintering into ceramic to obtain the potassium tantalate niobate ceramic chip, wherein excessive potassium carbonate is added, the sintering pre-synthesis temperature is 700-800 DEG C, and the sintering process of sintering into ceramic is carried out according to a set temperature program. The potassium tantalate niobate ceramic chip prepared by the method is relatively high in purity, good in crystallization, relatively large in size and relatively high in dielectric constant, and the dielectric constant can be adjusted according to requirements.
本发明属于无机非金属材料领域，涉及人工晶体及功能陶瓷材料制备，具体涉及一种介电常数可调的钽铌酸钾陶瓷片的制备方法，将五氧化二钽、五氧化二铌和碳酸钾进行烧结预合成获得多晶料，将多晶料进行破碎研磨，再加入粘结剂进行炒蜡造粒，然后依次干压成片、加热排胶、烧结成瓷即得钽铌酸钾陶瓷片；其中，碳酸钾过量添加，烧结预合成的温度为700～800℃，烧结成瓷的烧结过程按设定温度程序进行。本发明制备的钽铌酸钾陶瓷片纯度较高、结晶良好、尺寸较大，而且具有更高的介电常数，而且能够依据需求进行调节介电常数。
Preparation method of potassium tantalate niobate ceramic chip with adjustable dielectric constant
一种介电常数可调的钽铌酸钾陶瓷片的制备方法
YU HUAJIAN (author) / WANG XUPING (author) / YANG YUGUO (author) / LIU BING (author) / QIU CHENGCHENG (author)
2022-02-08
Patent
Electronic Resource
Chinese
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