CN107721395A - 透明氧化铝陶瓷制备方法 - Google Patents
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Abstract
一种透明氧化铝陶瓷制备方法,包括以下步骤:将氧化镁、分散剂和增塑剂混合,然后加入氧化铝粉末及去离子水球磨6h,再加入消泡剂和粘合剂球磨10h,得到水基流延浆料;将水基流延浆料进行流延处理,将流延得到的湿膜干燥,以获得1mm厚的透明氧化铝坯片,在260℃下慢速地排胶,接着将产品放入刚玉氧化铝管式炉中在4%H2/N2还原气氛中1200~1300℃下烧结25min,升温和降温速率分别为6℃/min和3~6℃/min;将烧结完成的产品进行平面研磨和表面抛光处理,以获得透明氧化铝陶瓷。
Description
技术领域:
本发明涉及无机材料制备技术领域,特别涉及一种透明氧化铝陶瓷制备方法。
背景技术:
透明陶瓷是指采用陶瓷工艺制备的具有一定的透光性的多晶材料。透明陶瓷不但具有陶瓷所固有的高强度、高硬度、耐高温、耐腐蚀、优良的化学稳定性等性能,又具有玻璃的光学性能以及优良的介电性能、低电导率、高热导率等许多其他材料所无可比拟的性能,因此可以广泛地应用在照明技术、激光技术、特种仪器制造、高温技术、无线电子学,信息探测技术以及军事工业等高技术领域透明氧化铝陶瓷是第一种实现透明的陶瓷,不但具有高强度、高硬度、耐腐蚀、耐高温等特点,而且对可见光和红外光有良好的透过性,同时原料易得,价格低廉,因此广泛地应用在透明陶瓷放电管、透明陶瓷装甲、衬底材料和封装材料。
透明氧化铝陶瓷的成型工艺主要有干压成型、注射成型、挤出成型以及等静压成型等,但是采用这些成型工艺很难制备出厚度几十个微米到之间表面光滑无缺陷的透明陶瓷坯片,流延成型是制备单相或复相陶瓷薄片结构材料比较有效的工艺,而且具有生产效率高、可连续操作缺陷尺寸小产品成分起伏小、性能稳定可大批量生产适于成型大型薄板陶瓷等优点,但是为了能够获得较好的柔韧性往往需要加入大量的有机物,这就要求严格控制工艺参数,否则就易造成起皮、条纹、坯片强度低和不易剥离等缺陷,同时所用的有机物因为有毒性,容易造成环境污染。
发明内容:
有鉴于此,有必要提供一种制备过程简单且成平率高的透明氧化铝陶瓷制备方法。
一种透明氧化铝陶瓷制备方法,包括以下步骤:
将氧化镁、分散剂和增塑剂混合,然后加入氧化铝粉末及去离子水球磨6h,再加入消泡剂和粘合剂球磨10h,得到水基流延浆料;
将水基流延浆料进行流延处理,将流延得到的湿膜干燥,以获得1mm厚的透明氧化铝坯片,其中,在加热干燥的过程中实时检测干燥环境的压强、湿度,并动态调整干燥环境的压强且保持湿度不变的条件下,使湿膜的整体温度保持一致,然后再降低湿度,以保证透明氧化铝坯片的表面不产生裂纹;
在260℃下慢速地排胶,接着将产品放入刚玉氧化铝管式炉中在4%H2/N2还原气氛中1200~1300℃下烧结25min,升温和降温速率分别为6℃/min和3~6℃/min;
将烧结完成的产品进行平面研磨和表面抛光处理,以获得透明氧化铝陶瓷。
上述透明氧化铝陶瓷制备方法中,以去离子水为溶剂不仅减少了对环境及人体的危害,而且降低了生产成本,同时在加热干燥的过程中实时检测干燥环境的压强、湿度,并动态调整干燥环境的压强且保持湿度不变的条件下,使湿膜的整体温度保持一致,然后再降低湿度,以保证陶瓷生坯的表面不产生裂纹,进而保证制备出的透明氧化铝陶瓷成平率高。
具体实施方式:
下面对本发明进行详细说明,所述透明氧化铝陶瓷制备方法,包括以下步骤:
将氧化镁、分散剂和增塑剂混合,然后加入氧化铝粉末及去离子水球磨6h,再加入消泡剂和粘合剂球磨10h,得到水基流延浆料;其中,所述分散剂为聚羧酸铵盐或聚丙烯酸按盐;所述粘结剂为聚乙烯醇、聚醋酸乙烯醋和聚丙烯酸中的一种;所述的增塑剂为乙二醇;所述的消泡剂为5-癸炔-4、7-二醇-2,4,7,9-四甲基;氧化镁、分散剂、增塑剂、氧化铝粉末、消泡剂、粘合剂及去离子水的质量份数为:氧化镁1份、分散剂2份、增塑剂1份、氧化铝粉末56份、消泡剂1份、粘合剂1份及去离子水38份。
将水基流延浆料进行流延处理,将流延得到的湿膜干燥,以获得1mm厚的透明氧化铝坯片,其中,在加热干燥的过程中实时检测干燥环境的压强、湿度,并动态调整干燥环境的压强且保持湿度不变的条件下,使湿膜的整体温度保持一致,然后再降低湿度,以保证透明氧化铝坯片的表面不产生裂纹。例如,将流延机的干燥台上设置压强、湿度环境形成空间,在压强、湿度环境形成空间内设置压力传感器、湿度传感器,设置排气设备与压强、湿度环境形成空间连通,在加热干燥的过程中实时检测干燥环境的压强、湿度,并动态调整干燥环境的压强且保持湿度不变的条件下,当透明氧化铝坯片的整体温度保持一致后,再控制排气设备工作,以降低压强、湿度环境形成空间中的湿度进而实现透明氧化铝坯片的干燥。在透明氧化铝坯片的干燥过程中,是分阶段进行的,以此来逐步实现透明氧化铝坯片的干燥。
在260℃下慢速地排胶,接着将产品放入刚玉氧化铝管式炉中在4%H2/N2还原气氛中1200~1300℃下烧结25min,升温和降温速率分别为6℃/min和3~6℃/min。
将烧结完成的产品进行平面研磨和表面抛光处理,以获得透明氧化铝陶瓷。
上述透明氧化铝陶瓷制备方法中,以去离子水为溶剂不仅减少了对环境及人体的危害,而且降低了生产成本,同时在加热干燥的过程中实时检测干燥环境的压强、湿度,并动态调整干燥环境的压强且保持湿度不变的条件下,使湿膜的整体温度保持一致,然后再降低湿度,以保证陶瓷生坯的表面不产生裂纹,进而保证制备出的透明氧化铝陶瓷成平率高。
Claims (3)
1.一种透明氧化铝陶瓷制备方法,包括以下步骤:
将氧化镁、分散剂和增塑剂混合,然后加入氧化铝粉末及去离子水球磨6h,再加入消泡剂和粘合剂球磨10h,得到水基流延浆料;
将水基流延浆料进行流延处理,将流延得到的湿膜干燥,以获得1mm厚的透明氧化铝坯片,其中,在加热干燥的过程中实时检测干燥环境的压强、湿度,并动态调整干燥环境的压强且保持湿度不变的条件下,使湿膜的整体温度保持一致,然后再降低湿度,以保证透明氧化铝坯片的表面不产生裂纹;
在260℃下慢速地排胶,接着将产品放入刚玉氧化铝管式炉中在4%H2/N2还原气氛中1200~1300℃下烧结25min,升温和降温速率分别为6℃/min和3~6℃/min;
将烧结完成的产品进行平面研磨和表面抛光处理,以获得透明氧化铝陶瓷。
2.如权利要求1所述的透明氧化铝陶瓷制备方法,其特征在于:所述分散剂为聚羧酸铵盐或聚丙烯酸按盐;所述粘结剂为聚乙烯醇、聚醋酸乙烯醋和聚丙烯酸中的一种;所述的增塑剂为乙二醇;所述的消泡剂为5-癸炔-4、7-二醇-2,4,7,9-四甲基。
3.如权利要求1所述的透明氧化铝陶瓷制备方法,其特征在于:氧化镁、分散剂、增塑剂、氧化铝粉末、消泡剂、粘合剂及去离子水的质量份数为:氧化镁1份、分散剂2份、增塑剂1份、氧化铝粉末56份、消泡剂1份、粘合剂1份及去离子水38份。
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CN116768609A (zh) * | 2022-07-29 | 2023-09-19 | 苏州瑞瓷新材料科技有限公司 | 一种流延成型的承烧生瓷在制备电子陶瓷中的应用 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101077835A (zh) * | 2007-06-25 | 2007-11-28 | 南京工业大学 | 高频低损耗低温共烧陶瓷生料带及其制备方法 |
CN101100367A (zh) * | 2007-07-06 | 2008-01-09 | 清华大学 | 氮化铝/硼硅酸盐玻璃低温共烧陶瓷基板材料及其制备方法 |
JP2010006681A (ja) * | 2008-06-30 | 2010-01-14 | Ohara Inc | リチウムイオン伝導性固体電解質グリーンシートの製造方法 |
CN102765945A (zh) * | 2012-08-13 | 2012-11-07 | 南京工业大学 | 高含量panh4水基氧化铝陶瓷基片及其制备方法 |
CN104446518A (zh) * | 2013-09-23 | 2015-03-25 | 比亚迪股份有限公司 | 一种nfc磁芯用水基流延浆料及制备方法、nfc磁芯及其制备方法 |
CN105541302A (zh) * | 2015-11-30 | 2016-05-04 | 陕西环珂生物科技有限公司 | 一种透明氧化铝陶瓷制备方法 |
-
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101077835A (zh) * | 2007-06-25 | 2007-11-28 | 南京工业大学 | 高频低损耗低温共烧陶瓷生料带及其制备方法 |
CN101100367A (zh) * | 2007-07-06 | 2008-01-09 | 清华大学 | 氮化铝/硼硅酸盐玻璃低温共烧陶瓷基板材料及其制备方法 |
JP2010006681A (ja) * | 2008-06-30 | 2010-01-14 | Ohara Inc | リチウムイオン伝導性固体電解質グリーンシートの製造方法 |
CN102765945A (zh) * | 2012-08-13 | 2012-11-07 | 南京工业大学 | 高含量panh4水基氧化铝陶瓷基片及其制备方法 |
CN104446518A (zh) * | 2013-09-23 | 2015-03-25 | 比亚迪股份有限公司 | 一种nfc磁芯用水基流延浆料及制备方法、nfc磁芯及其制备方法 |
CN105541302A (zh) * | 2015-11-30 | 2016-05-04 | 陕西环珂生物科技有限公司 | 一种透明氧化铝陶瓷制备方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116768609A (zh) * | 2022-07-29 | 2023-09-19 | 苏州瑞瓷新材料科技有限公司 | 一种流延成型的承烧生瓷在制备电子陶瓷中的应用 |
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