Ultrasound induced fragmentation of primary Al3Zr crystals Abhinav Priyadarshi, Tungky Subroto, Marcello Conte, Paul Prentice, Koulis Pericleous, Dmitry Eskin, John Durodola and Iakovos Tzanakis MATEC Web Conf., 326 (2020) 04002 Published online: 05 November 2020 DOI: 10.1051/matecconf/202032604002