Today, I am pleased to have this opportunity to hear from representatives of three companies participating in this project, as well as Mr. Kazuhiko Miyazawa who is in charge of the project at Kengo Kuma & Associates. I am delighted to learn about titanium and to explore the potential of titanium in future architecture, together with you.
As a metal, titanium has three distinctive features of being lightweight, rust-resistant, and highly-durable, and is mainly used for products for aerospace, special industrial plants, and certain equipment such as heat exchangers.
“Being lightweight” helps ensure safety and (important for some countries) quake-resistance, and helps reduce burden in processing and construction. “Being rust-resistance” means to contribute to reduction in the life cycle cost (LCC), as compared to metals it replaces there is no need for maintenance and no limitation in where it is to be used. Finally, “being strong” enables, for example, a titanium sheet to be thinner than an aluminum sheet for the same application. Titanium imparts virtually no impact to the environment. As titanium is also a biocompatible material, it has been adopted in medical applications for artificial bones and artificial joints.
Moreover, as a great design-related feature, titanium shows interference colors. Titanium does not rust due to the protective, colorless, and transparent oxide layer that forms on its surface but various colors are produced due to light interference phenomena when the light passes through the film. In case of exterior cladding made of titanium, the wall colors change with differences of incident light in the morning, at noon, and in the evening, and depending on where you stand and look at the material. Such interesting effects can be created with titanium.