Figure 7From: Grindability Evaluation of Ultrasonic Assisted Grinding of Silicon Nitride Ceramic Using Minimum Quantity Lubrication Based SiO2 NanofluidResults from grinding experiments: (a) Tangent force (ft), (b) Normal force (fn), (c) Roughness (Ra), (d) Grinding force ratio (ft/fn), (e) Grinding energy UBack to article page