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Method for sintering and connecting oxide ceramics in air by using high dislocation density noble metal particle foil tape
The invention relates to a method for sintering and connecting oxide ceramics in air by using a high-dislocation-density noble metal particle foil tape, and aims to solve the problems of poor high-temperature stability, poor sealing property and low mechanical strength of the existing ceramic connecting joint. The method for sintering and connecting the oxide ceramics comprises the following steps: 1, carrying out mechanical ball-milling treatment on noble metal powder; 2, mixing noble metal particles, a binder, a solvent and a dispersing agent to prepare slurry, and casting the slurry into a noble metal particle middle layer foil tape through a casting forming machine; thirdly, the ceramic to be welded is heated to 1000-1100 DEG C in the air atmosphere to be subjected to pre-oxidation treatment; 4, ultrasonic cleaning; 5, assembling the to-be-welded part; and sixthly, the assembled to-be-welded part is placed in a muffle furnace, the temperature is increased to 890-920 DEG C in air, and heat preservation is conducted for sintering connection. The precious metal interlayer foil tape is used for connecting the ceramics, precious metal does not react with the ceramics on the two sides, interface connection is tight, no new phase is generated on a connector, and the high-temperature stability of the connector is enhanced.
使用高位错密度贵金属颗粒箔带在空气中烧结连接氧化物陶瓷的方法，本发明要解决现有的陶瓷连接接头高温稳定性以及密封性较差、机械强度较低的问题。烧结连接氧化物陶瓷的方法：一、对贵金属粉进行机械球磨处理；二、将贵金属颗粒、粘结剂、溶剂和分散剂混合制成浆料，通过流延成型机流延成贵金属颗粒中间层箔带；三、待焊陶瓷在空气气氛下加热至1000～1100℃进行预氧化处理；四、超声清洗；五、装配待焊件；六、将装配好的待焊件放于马弗炉中，在空气中升温至890～920℃，保温进行烧结连接。本发明使用贵金属中间层箔带对陶瓷进行连接，贵金属不与两侧陶瓷反应，界面连接紧密，接头无新相生成，增强了接头的高温稳定性。
Method for sintering and connecting oxide ceramics in air by using high dislocation density noble metal particle foil tape
The invention relates to a method for sintering and connecting oxide ceramics in air by using a high-dislocation-density noble metal particle foil tape, and aims to solve the problems of poor high-temperature stability, poor sealing property and low mechanical strength of the existing ceramic connecting joint. The method for sintering and connecting the oxide ceramics comprises the following steps: 1, carrying out mechanical ball-milling treatment on noble metal powder; 2, mixing noble metal particles, a binder, a solvent and a dispersing agent to prepare slurry, and casting the slurry into a noble metal particle middle layer foil tape through a casting forming machine; thirdly, the ceramic to be welded is heated to 1000-1100 DEG C in the air atmosphere to be subjected to pre-oxidation treatment; 4, ultrasonic cleaning; 5, assembling the to-be-welded part; and sixthly, the assembled to-be-welded part is placed in a muffle furnace, the temperature is increased to 890-920 DEG C in air, and heat preservation is conducted for sintering connection. The precious metal interlayer foil tape is used for connecting the ceramics, precious metal does not react with the ceramics on the two sides, interface connection is tight, no new phase is generated on a connector, and the high-temperature stability of the connector is enhanced.
使用高位错密度贵金属颗粒箔带在空气中烧结连接氧化物陶瓷的方法，本发明要解决现有的陶瓷连接接头高温稳定性以及密封性较差、机械强度较低的问题。烧结连接氧化物陶瓷的方法：一、对贵金属粉进行机械球磨处理；二、将贵金属颗粒、粘结剂、溶剂和分散剂混合制成浆料，通过流延成型机流延成贵金属颗粒中间层箔带；三、待焊陶瓷在空气气氛下加热至1000～1100℃进行预氧化处理；四、超声清洗；五、装配待焊件；六、将装配好的待焊件放于马弗炉中，在空气中升温至890～920℃，保温进行烧结连接。本发明使用贵金属中间层箔带对陶瓷进行连接，贵金属不与两侧陶瓷反应，界面连接紧密，接头无新相生成，增强了接头的高温稳定性。
Method for sintering and connecting oxide ceramics in air by using high dislocation density noble metal particle foil tape
使用高位错密度贵金属颗粒箔带在空气中烧结连接氧化物陶瓷的方法
SI XIAOQING (author) / WANG NAIQIANG (author) / CAO JIAN (author) / GUO XIAJUN (author) / LI CHUN (author) / QI JUNLEI (author) / FENG JICAI (author)
2024-07-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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Sintering and Microstructural Development of Metal Oxide Varistor Ceramics
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