Improving Compactness of 3D Metallic Microstructures Printed by Laser-Induced Forward Transfer

被引:16
作者
Gorodesky, Niv [1 ,2 ,3 ,4 ]
Sedghani-Cohen, Sharona [3 ]
Fogel, Ofer [3 ]
Silber, Amir [3 ]
Tkachev, Maria [4 ]
Kotler, Zvi [3 ]
Zalevsky, Zeev [1 ,2 ,4 ]
机构
[1] Bar Ilan Univ, Fac Engn, IL-5290002 Ramat Gan, Israel
[2] Bar Ilan Univ, Nanotechnol Ctr, IL-5290002 Ramat Gan, Israel
[3] Orbotech Ltd, Addit Mfg Lab, POB 215, IL-8110101 Yavne, Israel
[4] Bar Ilan Univ, Inst Nanotechnol & Adv Mat, IL-5290002 Ramat Gan, Israel
关键词
laser-induced forward transfer; 3D metal printing; additive manufacturing; printing of micro-electronics devices; metal glass; improved properties; ENTHALPY;
D O I
10.3390/cryst11030291
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Laser-induced forward transfer (LIFT) has been shown to be a useful technique for the manufacturing of micron-scale metal structures. LIFT is a high-resolution, non-contact digital printing method that can support the fabrication of complex shapes and multi-material structures in a single step under ambient conditions. However, LIFT printed metal structures often suffer from inferior mechanical, electrical, and thermal properties when compared to their bulk metal counterparts, and often are prone to enhanced chemical corrosion. This is due mostly to their non-compact structures, which have voids and inter-droplet delamination. In this paper, a theoretical framework together with experimental results of achievable compactness limits is presented for a variety of metals. It is demonstrated that compactness limits depend on material properties and jetting conditions. It is also shown how a specific choice of materials can yield compact structures, for example, when special alloys are chosen along with a suitable donor construct. The example of printed amorphous ZrPd is detailed. This study contributes to a better understanding of the limits of implementing LIFT for the fabrication of metal structures, and how to possibly overcome some of these limitations.
引用
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页数:14
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