is based on the PhD thesis entitled "The Effects of Alumina Purity, Ticusil® Braze Preform Thickness and Post-grinding Heat Treatment, on the Microstructure, Mechanical and Nanomechanical Properties of Alumina-to-Alumina Brazed Joints" which was awarded by Imperial College London’s CASC Steering Group as the 2017 recipient of the Professor Sir Richard Brook Prize (sponsored by Morgan Advanced Materials plc) for Best Ceramics PhD Thesis in the UK. It focusses on the alumina/Ag-Cu-Ti system to cover the active metal brazing of ceramics, variables involved in the process, and the effects of these variables on wetting, interfacial reaction layer formation, and joint strength. The comprehensive review brings together findings from the literature into one place, and presents key concepts in a concise and easy- to-read manner.