Non-metallic clay material. According to China Encyclopedia, jewelry titanium alloy ceramics belong to clay nonmetallic materials, which are fragile due to high temperature and heat resistance. As a metal with very strong physical properties, titanium is used in various applications. Titanium alloy has high strength, good corrosion resistance and high heat resistance. In 1950s and 1960s, it was mainly used to develop high-temperature titanium alloys for aero-engines and structural titanium alloys for airframes.