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• The surface patterning of ZrO 2 ceramics was achieved in a low-temperature. • The interfacial reaction of ZrO 2 /Sn-2Ti under the ultrasonication was elucidated. • The thicker reaction layer led to partial transformation of amorphous TiO to γ-TiO. • The extreme non-equilibrium environment induced the formation of Ti 11.31 Sn 3 O 10. We demonstrate a process to achieve selective surface metallization of ZrO 2 ceramics using ultrasound technology in atmospheric environments at 350 °C, which bestows good weldability of ZrO 2 to achieve rapid and reliable connections with other metals as well as ceramic materials. The challenge is that brazing or diffusion welding processes to accomplish metallurgical connections for ZrO 2 typically require holding at elevated temperatures for minutes to hours, while the selective ultrasonic metallization process requires only a few seconds of processing without the application of covering films or solder resists. In this study, the selected Sn-2Ti alloy could effectively wet and spread on ZrO 2 substrate under ultrasonication, and continuous interphase layers were rapidly formed in situ between ZrO 2 and Sn-2Ti. The bonding strength for the ZrO 2 /Sn-2Ti interface was well established with the highest shear strength of 37.1 MPa, and the fracture location occurred at the filler metal. The interfacial reaction layer thickened remarkably with the prolongation of sonication, accompanied by the partial crystallization of amorphous TiO and the formation of irregularly striped Ti 11.31 Sn 3 O 10 nanocrystals. [Display omitted] [ABSTRACT FROM AUTHOR]