Flash self‐joining of Y‐TZP ceramics assisted with an AC electric field
Flash self‐joining of Y‐TZP ceramics assisted with an AC electric field
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交流电场辅助下 Y-TZP 陶瓷的闪光自连接
DOI：
10.1111/jace.18889
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发表时间：
2022
影响因子：
3.9
通讯作者：
Yoshida Hidehiro
中科院分区：
文献类型：
--
作者：
Nambu Kohta;Kitaoka Taisuke;Morita Koji;Soga Kohei;Tokunaga Tomoharu;Yamamoto Takahisa;Masuda Hiroshi;Yoshida Hidehiro
在本研究中，利用交流电场在3mol % Y2O3稳定的四方zro2多晶（Y‐TZP）体上进行了闪光连接实验。此外，还明确了获得Y - TZP体几乎完全自连接的必要条件。在1000°C的炉温下，施加60 mA mm−2的交流电场80 s，成功地将试样连接在一起，从而使试样的抗折强度达到Y‐TZP烧结体的92%。当电流密度大于30 mA mm−2，输入能量密度为>24 J mm−3时，Y‐TZP几乎完全自连接。输入能量密度和电流是保证陶瓷连接可靠的关键因素。
In this study, flash joining experiments were conducted using an AC field on 3 mol% Y2O3‐stabilized tetragonal ZrO2polycrystal (Y‐TZP) bodies. Furthermore, the necessary conditions to obtain an almost complete self‐joining of Y‐TZP bodies were clarified. The specimens were successfully joined by applying an AC field at 60 mA mm−2for 80 s at a furnace temperature of 1000°C, thus resulting in a successfully joined specimen with 92% of the flexural strength of the as‐sintered Y‐TZP body. Almost complete self‐joining of Y‐TZP was achieved at current densities above 30 mA mm−2, and input energy densities of >24 J mm−3. Both the input energy density and electric current were critical factors for producing the reliable joining of ceramics.