[18p-PA3-1~4] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

[18p-PA3-3] Improvement of analysis method for diffusion of OH groups
through the binding interface of silica glasses

〇Yuya Sugiyama¹, Yusuke Aoki¹, Nobu Kuzuu¹, Hideharu Horikoshi², Naohiro Horii³ (1.Fukui University, 2.Tosoh SGM, 3.NIT Fukui College)

Keywords:amorphous

We have shown that the diffusion coefficient of hydroxyl groups in silica glass is proportional to OH concentration, by analyzing the OH-profile change by heating applying an analysis method called the Boltzmann Matano’s method to the binding samples of silica glassed with different OH concentrations. We proposed an improved method that use a functional approximation providing reliable results, because we used an analog method that take a many times and hard to apply the data for the profile that diffused from the surface.