Phase analysis shows that the distance of crystal face of WC increases and oxide film of Y forms on the surface by Y ion implantation.
相分析表明，离子注入使WC晶面间距增大，稀土元素Y的注入在材料表面形成了Y的氧化物膜层。
2
A classy creation, this rhodium-plated Y-shaped necklace has two briolette-cut clear crystals. These are set on a snake chain and clamped together with a clear crystal element set in pave.