1. Noninvasive Tracking of Solidification Using Ultrasound Restricted (Penn State Only) Author: Smith, Caeden Title: Noninvasive Tracking of Solidification Using Ultrasound Graduate Program: Engineering Science and Mechanics Keywords: UltrasoundMushy ZoneReflectionMatching LayerAcousticCastingSolidificationWaxMetalFront Tracking File: Login to Download Committee Members: Andrea P. Arguelles, Thesis Advisor/Co-AdvisorChristopher Kube, Committee MemberAlbert Segall, Program Head/ChairJulianna Simon, Committee Member