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- Title
Preparation of Nanoabrasive for Magnetorheological Polishing of KDP Crystals.
- Authors
Belov, D. V.; Belyaev, S. N.; Malshakova, O. A.; Sorokoletova, N. A.; Serebrov, E. I.
- Abstract
Magnetorheological polishing technology is widely used in the processing of high-precision optical elements. One of the determining factors in the magnetorheological polishing technology is the nature and quality of a nanoabrasive present in a magnetorheological suspension. In this study, a method has been developed for the sol–gel synthesis of amorphous silica nanospheres used as a nanoabrasive for magnetorheological polishing of water-soluble crystals used to manufacture nonlinear optical elements for laser technology. The practical success has been achieved by incorporating the synthesized silica nanoabrasive into a magnetorheological suspension. The physicochemical characteristics of the resulting nanoabrasive have been presented. Electron microscopy data have confirmed the spherical morphology of SiO2 particles, and it has been found that the particle size distribution varies in a range of 40–60 nm, thus ensuring the uniformity and high quality of treating the surfaces of optical elements with the magnetorheological suspension. The structure-related properties of the SiO2 nanoabrasive have been studied by X-ray powder diffraction. The incorporation of the SiO2 nanoabrasive into the magnetorheological suspension has made it possible to achieve the high-quality processing and cleanliness of the surface, as well as to ensure the finishing polishing of the surface of KDP single crystals to roughness values of no more than 6 Å. The results of the work are of interest for optimizing the process and improving the technology of magnetorheological polishing.
- Subjects
MAGNETORHEOLOGY; X-ray powder diffraction; OPTICAL elements; PARTICLE size distribution; SINGLE crystals
- Publication
Colloid Journal, 2024, Vol 86, Issue 4, p505
- ISSN
1061-933X
- Publication type
Article
- DOI
10.1134/S1061933X24600477