Heer Bryan, Zhang Yanning, Bandyopadhyay Amit
School of Mechanical and Materials Engineering Washington State University Pullman, WA 99164, USA.
Mater Lett. 2021 May 1;290. doi: 10.1016/j.matlet.2021.129466. Epub 2021 Feb 11.
The directed energy deposition (DED)-based additive manufacturing (AM) was used to create compositionally graded pure Al-12Si to pure AlO structures varying the powder feed rates during deposition. Thermal diffusivity of Al-12Si+AlO structures was reduced by >60% compared to pure Al-12Si. With a pure AlO ceramic layer on Al-12Si+AlO, our results confirm the feasibility of designing and manufacturing metal-ceramic composites via AM with tailored thermal properties.
基于定向能量沉积（DED）的增材制造（AM）被用于制造成分渐变的纯Al-12Si到纯AlO结构，在沉积过程中改变粉末进料速率。与纯Al-12Si相比，Al-12Si+AlO结构的热扩散率降低了60%以上。在Al-12Si+AlO上有一层纯AlO陶瓷层，我们的结果证实了通过具有定制热性能的增材制造来设计和制造金属陶瓷复合材料的可行性。
