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Gel-casting low-dielectric-loss aluminum oxide ceramic and preparation method thereof
The invention relates to the technical field of inorganic non-metallic materials, in particular to gel-casting low-dielectric-loss aluminum oxide ceramic and a preparation method thereof.The method comprises the following steps that 1, pulping and ball milling are conducted, specifically, a monomer, a cross-linking agent and a composite dispersing agent are taken and added into deionized water, uniform stirring is conducted, and a premixed solution is obtained, adding high-purity nano activated alumina powder, stirring to obtain slurry, adding the slurry and grinding balls into a ball milling tank, and carrying out ball milling to obtain slurry for injection molding; (2) gel injection molding; 3) drying and dehydrating; (4) preprocessing; 5) discharging glue and sintering; and (6) post-processing. Compared with the method for preparing the low-dielectric-loss aluminum oxide ceramic by adopting hot isostatic pressing and spark plasma sintering technologies, the method disclosed by the invention is relatively low in cost, simpler in process and better in controllability.
本发明涉及无机非金属材料技术领域，具体涉及一种凝胶注模成型低介电损耗氧化铝陶瓷及其制备方法，该方法包括以下步骤：1)制浆球磨：取单体、交联剂、复合型分散剂加入去离子水中，搅拌均匀，得到预混液，再加入高纯度纳米活性氧化铝粉进行搅拌，得到浆料，将浆料和研磨球加入球磨罐，进行球磨，得到注模用浆料；2)凝胶注模成型；3)干燥脱水；4)预加工；5)排胶烧结；6)后加工。与采用热等静压和放电等离子烧结技术制备低介电损耗的氧化铝陶瓷相比，本发明方法成本较低，工艺更简单，可控性更好。
Gel-casting low-dielectric-loss aluminum oxide ceramic and preparation method thereof
The invention relates to the technical field of inorganic non-metallic materials, in particular to gel-casting low-dielectric-loss aluminum oxide ceramic and a preparation method thereof.The method comprises the following steps that 1, pulping and ball milling are conducted, specifically, a monomer, a cross-linking agent and a composite dispersing agent are taken and added into deionized water, uniform stirring is conducted, and a premixed solution is obtained, adding high-purity nano activated alumina powder, stirring to obtain slurry, adding the slurry and grinding balls into a ball milling tank, and carrying out ball milling to obtain slurry for injection molding; (2) gel injection molding; 3) drying and dehydrating; (4) preprocessing; 5) discharging glue and sintering; and (6) post-processing. Compared with the method for preparing the low-dielectric-loss aluminum oxide ceramic by adopting hot isostatic pressing and spark plasma sintering technologies, the method disclosed by the invention is relatively low in cost, simpler in process and better in controllability.
本发明涉及无机非金属材料技术领域，具体涉及一种凝胶注模成型低介电损耗氧化铝陶瓷及其制备方法，该方法包括以下步骤：1)制浆球磨：取单体、交联剂、复合型分散剂加入去离子水中，搅拌均匀，得到预混液，再加入高纯度纳米活性氧化铝粉进行搅拌，得到浆料，将浆料和研磨球加入球磨罐，进行球磨，得到注模用浆料；2)凝胶注模成型；3)干燥脱水；4)预加工；5)排胶烧结；6)后加工。与采用热等静压和放电等离子烧结技术制备低介电损耗的氧化铝陶瓷相比，本发明方法成本较低，工艺更简单，可控性更好。
Gel-casting low-dielectric-loss aluminum oxide ceramic and preparation method thereof
一种凝胶注模成型低介电损耗氧化铝陶瓷及其制备方法
LIU LINJIE (Autor:in) / YANG XUQIANG (Autor:in) / XIE ZHIPENG (Autor:in) / LI YIHUA (Autor:in)
11.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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