TY - JOUR
T1 - Yttria-stabilized zirconia-aluminum matrix composites via ultrasonic additive manufacturing
AU - Deng, Zhangxian
AU - Gingerich, M. Bryant
AU - Han, Tianyang
AU - Dapino, Marcelo J.
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/10/15
Y1 - 2018/10/15
N2 - High-integrity ceramic-metal composites combine electrical, thermal, and corrosion resistance with excellent mechanical robustness. Ultrasonic additive manufacturing (UAM) is a low temperature process that enables dissimilar material welds without inducing brittle phases. In this study, multiple layers of Yttria-stabilized zirconia (YSZ) films are jointed between layers of Al 6061-H18 matrix using a 9 kW UAM system. UAM is advantageous over existing metal-ceramic composite fabrication techniques by continuously joining ceramics to metals at a speed of 2 m/min while requiring a moderate temperature that is 55% of the melting point of aluminum. The welding interface, which is found to include a 10 nm thick diffusion zone, is investigated using optical microscopy and energy-dispersive X-ray (EDX) spectroscopy. The shear strengths of the as-welded and heat-treated composites are 72 MPa and 103 MPa, respectively. The shear deformation and failure mechanism of the YSZ-Al composites are investigated via finite element modeling.
AB - High-integrity ceramic-metal composites combine electrical, thermal, and corrosion resistance with excellent mechanical robustness. Ultrasonic additive manufacturing (UAM) is a low temperature process that enables dissimilar material welds without inducing brittle phases. In this study, multiple layers of Yttria-stabilized zirconia (YSZ) films are jointed between layers of Al 6061-H18 matrix using a 9 kW UAM system. UAM is advantageous over existing metal-ceramic composite fabrication techniques by continuously joining ceramics to metals at a speed of 2 m/min while requiring a moderate temperature that is 55% of the melting point of aluminum. The welding interface, which is found to include a 10 nm thick diffusion zone, is investigated using optical microscopy and energy-dispersive X-ray (EDX) spectroscopy. The shear strengths of the as-welded and heat-treated composites are 72 MPa and 103 MPa, respectively. The shear deformation and failure mechanism of the YSZ-Al composites are investigated via finite element modeling.
KW - EDX
KW - Metal-ceramic composite
KW - Solid-state welding
KW - Ultrasonic additive manufacturing
UR - http://www.scopus.com/inward/record.url?scp=85048715448&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2018.06.001
DO - 10.1016/j.compositesb.2018.06.001
M3 - Article
AN - SCOPUS:85048715448
SN - 1359-8368
VL - 151
SP - 215
EP - 221
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
ER -