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High-purity alumina corundum ceramic metallization method
The invention discloses a high-purity alumina corundum ceramic metallization method which comprises the following steps: pre-sintering or pre-coating a medium-temperature thin glaze layer with a certain thickness and a proper alumina content on the surface of high-purity alumina corundum ceramic, coating a layer of high-temperature metallization slurry, drying, and sintering in a hydrogen atmosphere according to a certain sintering system. The high-purity alumina corundum ceramic surface layer pretreatment glaze reacts with a ceramic matrix, so that the wettability of the ceramic matrix and the metallized material is improved, the compatibility and the binding property of a metallized paste material and the ceramic matrix are improved, and a high-quality ceramic metallized layer is obtained. The sealing strength of the high-purity alumina corundum ceramic metallization layer obtained by the method and the Kovar alloy can reach 125-135 MPa, and the He leakage rate can reach below the magnitude order of 3.0 * 10 <-11 >-6.0 * 10 <-11 > Pa.m < 3 >.
本发明公开了一种高纯氧化铝刚玉陶瓷金属化方法，是通过在高纯氧化铝刚玉陶瓷表面预烧或预涂一层具有一定厚度的适量氧化铝含量中温薄釉层后，再涂附一层高温金属化浆料，干燥后，在氢气气氛中，以一定的烧成制度烧成。通过高纯氧化铝刚玉陶瓷表层预处理釉料和陶瓷基体反应，改善陶瓷基体与金属化料的浸润性，提高了金属化膏料与陶瓷基体的相容性与结合性，获得高质量陶瓷金属化层。本方法所获得的高纯氧化铝刚玉陶瓷金属化层与可阀合金的封接强度可达125～135MPa，He泄漏率可达到3.0x10‑11～6.0x10‑11Pa.m3量级以下。
High-purity alumina corundum ceramic metallization method
The invention discloses a high-purity alumina corundum ceramic metallization method which comprises the following steps: pre-sintering or pre-coating a medium-temperature thin glaze layer with a certain thickness and a proper alumina content on the surface of high-purity alumina corundum ceramic, coating a layer of high-temperature metallization slurry, drying, and sintering in a hydrogen atmosphere according to a certain sintering system. The high-purity alumina corundum ceramic surface layer pretreatment glaze reacts with a ceramic matrix, so that the wettability of the ceramic matrix and the metallized material is improved, the compatibility and the binding property of a metallized paste material and the ceramic matrix are improved, and a high-quality ceramic metallized layer is obtained. The sealing strength of the high-purity alumina corundum ceramic metallization layer obtained by the method and the Kovar alloy can reach 125-135 MPa, and the He leakage rate can reach below the magnitude order of 3.0 * 10 <-11 >-6.0 * 10 <-11 > Pa.m < 3 >.
本发明公开了一种高纯氧化铝刚玉陶瓷金属化方法，是通过在高纯氧化铝刚玉陶瓷表面预烧或预涂一层具有一定厚度的适量氧化铝含量中温薄釉层后，再涂附一层高温金属化浆料，干燥后，在氢气气氛中，以一定的烧成制度烧成。通过高纯氧化铝刚玉陶瓷表层预处理釉料和陶瓷基体反应，改善陶瓷基体与金属化料的浸润性，提高了金属化膏料与陶瓷基体的相容性与结合性，获得高质量陶瓷金属化层。本方法所获得的高纯氧化铝刚玉陶瓷金属化层与可阀合金的封接强度可达125～135MPa，He泄漏率可达到3.0x10‑11～6.0x10‑11Pa.m3量级以下。
High-purity alumina corundum ceramic metallization method
一种高纯氧化铝刚玉陶瓷金属化方法
LI DONGCAI (author) / HE CANGBAO (author) / WANG YONGSHENG (author)
2021-12-21
Patent
Electronic Resource
Chinese
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