[G] Mechanical Properties of Materials and Sturucture

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[45] High-Pressure Torsion of SiO₂ Quartz: Phase Transformation and Optical Properties

*WANG Qing¹, Edalati Kaveh¹, Fujita Ikuro¹, Watanabe Motonori¹, Horita Zenji² (1. Kyushu Univ., 2. Kyushu Inst. of Technology)

Keywords:

High pressure torsion,SiO₂ quartz,SiO₂ coesite,Oxygen vacancy,Photocatalysis

In this study, HPT method was employed on SiO₂ quartz for stabilizing the high pressure coesite phase and introducing oxygen vacancies to enhance the optical properties and photocatalytic activity.