| 摘要 |
A decorative article presenting a metallic appearance is made of sintered ZrO2, modified so that 10-50, pref. 35% of Zr atoms still form part of the tetragonal crystal structure but are not bonded chemically to O atoms. In manufacture the article is formed of ZrO2 and then heated in a plasma furnace containing an atmos. of H at 800 degrees C for 1-3, pref. 2 hrs. to reduce some of the oxide. |
