A Review of the Alumina/Ag-Cu-Ti Active Metal Brazing Process

A Review of the Alumina/Ag-Cu-Ti Active Metal Brazing Process 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.

Following graduation from University College London with an integrated masters (MEng) degree in Engineering with Business Finance in 2009, Tahsin Ali completed a Masters (MRes) degree in the Science and Engineering of Materials at the University of Birmingham in 2010. Thereafter, Tahsin Ali worked in international business development for a leading materials testing manufacturer before commencing a role as a materials development engineer in the hardfacing repair of forging dies. Tahsin Ali qualified as a chartered engineer (CEng) in January 2016 and in October 2017 he completed a doctorate (Ph.D) in the active metal brazing of ceramics at Brunel University London, based full-time at TWI Ltd in Cambridge. In November 2017, Tahsin Ali joined Phillips & Leigh LLP, a firm of patent and trade mark attorneys as a patent scientist and trainee patent attorney specialising in handling inventions in the field of materials science and engineering. This book is based on Tahsin's Ph.D 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 Ph.D Thesis in the U.K. and also received the Dean's Prize for Innovation and Impact and the Vice-Chancellor's Prize for Doctoral Research at Brunel University London in 2017.

1. Introduction. 2. A Review of the Alumina/Ag-Cu-Ti System. 3 Experimental Methods 4. Alumina Ceramics 5. Microstructural Evolution 6. Joint Performance