... density grinding media.Applications:1.High strength and high toughness products, such as dielectric materials, piezo electric materials, magnetic materials.2. Wear and corrosion ... : such as electronics ceramics, refractory ceramics, engineering ceramics, nanometer Materials.Specifications:1.Chemical composition: Zro2: 94.6%, Y2O3: 5.2±0.2 ... 6, 0.60.8,0.81.0, 1.01.2, 1.21.4, 1.41.7, 1.52.0, 2.02.5, 3, 4 ...