Reduction of temperature gradient and carbon contamination in electric current assisted sintering (ECAS/SPS) using a "saw-tooth" heating schedule
Reduction of temperature gradient and carbon contamination in electric current assisted sintering (ECAS/SPS) using a "saw-tooth" heating schedule
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DOI：
10.1016/j.ceramint.2019.07.343
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发表时间：
2019-12-01
影响因子：
5.2
通讯作者：
Pabst, Willi
中科院分区：
文献类型：
--
作者：
Necina, Vojtech;Pabst, Willi
提出了一种新的方法，通过电流辅助烧结（ECAS）制备的透明陶瓷的温度梯度和碳污染的减少，并成功地证明了在透明尖晶石陶瓷的情况下。一个所谓的“锯齿”加热程序被应用，以达到更均匀的致密化，从而降低碳污染的水平。这种锯齿形加热方案的一个重要特征是可以保持平均加热速率。该方法是一种通用方法，也可用于其他陶瓷。
A novel approach for the reduction of temperature gradients and carbon contamination of transparent ceramics prepared via electric current assisted sintering (ECAS) is proposed and successfully demonstrated in the case of transparent spinel ceramics. A so-called "saw-tooth" heating schedule was applied to attain more homogeneous densification, hereby lowering the level of carbon contamination. An important feature of this saw-tooth heating schedule is that the average heating rate can be retained. The approach is a general one that can be used for other ceramics as well.