TY - JOUR
T1 - Three-dimensional amorphous Ni−Cr alloy printing by electrochemical additive manufacturing
AU - Tseng, Yao Tien
AU - Lin, Jing Chie
AU - Shian-Ching Jang, Jason
AU - Tsai, Pei Hua
AU - Ciou, Yong Jie
AU - Hwang, Yean Ren
N1 - Publisher Copyright:
© 2020 American Chemical Society
PY - 2020/11/24
Y1 - 2020/11/24
N2 - Amorphous metals have wide applications, including those in various transducer and sensor devices, because of their extraordinary physical and chemical characteristics, excellent mechanical properties, and corrosion resistance. However, their intrinsic ultrahigh strength and frangibility limit their manufacturing. Herein, a microanode-guided electroplating (MAGE) method is introduced to fabricate three-dimensional microhelices of amorphous Ni−Cr alloys. In MAGE, a super-high strength electrical field (∼105 V m−1) was established by charging a few volts across a tiny electrode gap (approximately 100 μm). The current density of MAGE was 2 orders of magnitude higher than that of traditional thin-film electrochemical coating that undergoes kinetic control processes, favoring the amorphous phases. The morphology, composition, and physical properties of the micro Ni−Cr devices were also investigated, revealing the outstanding reduced Young’s modulus (165 GPa), hardness (8.21 GPa), and high-temperature Joule heating stability up to 1200 °C.
AB - Amorphous metals have wide applications, including those in various transducer and sensor devices, because of their extraordinary physical and chemical characteristics, excellent mechanical properties, and corrosion resistance. However, their intrinsic ultrahigh strength and frangibility limit their manufacturing. Herein, a microanode-guided electroplating (MAGE) method is introduced to fabricate three-dimensional microhelices of amorphous Ni−Cr alloys. In MAGE, a super-high strength electrical field (∼105 V m−1) was established by charging a few volts across a tiny electrode gap (approximately 100 μm). The current density of MAGE was 2 orders of magnitude higher than that of traditional thin-film electrochemical coating that undergoes kinetic control processes, favoring the amorphous phases. The morphology, composition, and physical properties of the micro Ni−Cr devices were also investigated, revealing the outstanding reduced Young’s modulus (165 GPa), hardness (8.21 GPa), and high-temperature Joule heating stability up to 1200 °C.
KW - Amorphous metal alloy
KW - Electrochemical additive manufacturing
KW - Microanode-guided electroplating
KW - Microhelix
KW - Ni−Cr alloy
UR - http://www.scopus.com/inward/record.url?scp=85095988128&partnerID=8YFLogxK
U2 - 10.1021/acsaelm.0c00570
DO - 10.1021/acsaelm.0c00570
M3 - 期刊論文
AN - SCOPUS:85095988128
SN - 2637-6113
VL - 2
SP - 3538
EP - 3548
JO - ACS Applied Electronic Materials
JF - ACS Applied Electronic Materials
IS - 11
ER -