The Effect of PH Value on Shear Thickening and Chemical Compound Effect Polishing Solution

Abstract

Abstract When the traditional polishing method is used to process brittle materials such as lithium niobate, brittle failure is easy to occur, and many microcracks remain on the surface of the workpiece. Thus, the traditional method is not suitable for ultra-precision machining with higher surface roughness requirements. In this paper, a new type of high-performance polishing fluid with shear thickening and chemical compound effect was developed. The shear thickening effect was combined with the chemical effect, which was dedicated to the ultra-precision polishing of difficult-to-machine materials, such as optical crystals and semiconductors. The results show that the best polishing effect is achieved when the pH value is 9.5.