ПОЛІПШЕННЯ ЕКСПЛУАТАЦІЙНИХ ХАРАКТЕРИСТИК АЛМАЗНОГО ШЛІФУВАЛЬНОГО ІНСТРУМЕНТУ МОДИФІКАЦІЄЮ ПОВЕРХНІ ЗЕРЕН СИНТЕТИЧНИХ АЛМАЗІВ

V. LAVRINENKO; O. BOCHECHKA; V. POLTORATSKYI; V. SMOKVYNA; V. SOLOD

doi:10.15407/scine20.01.003

Authors

V. LAVRINENKO V. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine https://orcid.org/0000-0003-2098-7992
O. BOCHECHKA V. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine https://orcid.org/0000-0002-5728-891X
V. POLTORATSKYI V. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine https://orcid.org/0000-0002-3569-8512
V. SMOKVYNA V. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine https://orcid.org/0000-0002-4181-7274
V. SOLOD Dniprovsky State Technical University, the Ministry of Education and Science of Ukraine https://orcid.org/0000-0002-7516-9535

DOI:

https://doi.org/10.15407/scine20.01.003

Keywords:

: diamond grinding tool, synthetic diamond grain surface, diamond oxidation, diamond surface modifi cation, saturated solution, isothermal method, oxides, chlorides, operational characteristics of grinding tool.

Abstract

Introduction. Machine-building enterprises of Ukraine need a highly effi cient diamond grinding tool. For its eff ective use, it is necessary to use high-quality synthetic diamond powders with improved operational characteristics.
Problem Statement. Among the disadvantages of synthetic diamonds used in grinding tools is their oxidation under high temperature, during high-performance grinding of modern hard-to-machine materials.
Purpose. The purpose of this research is to study the possibilities of improving the operational characteristics of the diamond grinding tool by modifying the surface of synthetic diamond grains.
Material and Methods. The surface of AC6–АС20 diamond powder has been modifi ed by the isothermal method of liquid-phase deposition of heat-resistant oxides (B₂O₃, Al₂O₃), chlorides (CaСl₂, NaCl, MgCl₂, FeCl₃), and their mixes (B₂О₃ + CaСl₂, B₂О₃ + NaCl) from saturated solutions on the diamond surface.
Results. The basic technology of forming heat-stable wear-resistant coatings on the surface of diamond grinding powder grains from mixes of soluble and insoluble oxygen- (B₂O₃, TiO₂, SiO₂, Al₂O₃, TiO, CaO, ZnO, CeO₂, SnO₂), silicate- (Na₂O(SiO₂)_n), (K₂O(SiO₂)_n) and carbide- containing (SiC, TiC, B₄C) compounds in various combinations. It has been found that the modifi cation allows reducing the costs of diamonds in grinding wheels, with the best solution being the modifi cation with B₂O₃ and Al₂O₃ oxides. It has been shown that the modifi cation of the surface of diamond grains with the combination of B₂O₃/Al₂O₃ allows improving the fi lling of the rough polished surface with material and increasing its holding capacity. It has been established that with an increase in the manufacture cost by as few as 9—11%, the modifi cation of abrasive grains of grinding wheels enhances the wheel wear resistance 2 times.
Conclusions. The use of such purposefully improved diamond grinding powders in the working layer of diamond wheels allows increasing the performance and wear resistance of the diamond grinding tool.

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References

Lavrinenko, V. I., Ilnitskaya, G. D., Sheiko, M. N., Dobroskok, V. L., Ostroverkh, Ye. V., Solod, V. Yu. (2021). Improving the performance characteristics of synthetic diamond for high-precision diamond dressing tool. Sci. innov., 17(6), 72—82. https://doi.org/10.15407/scine17.06.072.

Baoyan Liang, Zhen Dai, Qi Zhang, Wangxi Zhang, Ruĳ ie Zhang, Ying Liu, Jizhou Zhang, Li Ya (2021). Coating of diamond by thermal explosion reaction. Diamond and Related Materialі, 119 (November 2021), 108572. https://doi.org/ 10.1016/j.diamond.2021.108572.

Ukhina, A. V., Dudina, D. V., Bokhonov, B. B., Savintseva, D. V., Samoshkin, D. A., Stankus, S. V. (2022). Morphological features and phase composition of W-containing coatings formed on diamond via its interaction with WO3 . Diamond and Related Materials, 123, 108876. https://doi.org/10.1016/j.diamond.2022.108876

Ao Deng, Jing Lu, Dongxu Li, Yanhui Wang. (2021). Exploring the activation energy of diamond reacting with metals and metal oxides by fi rst-principle calculation. Diamond and Related Materials, 118, 108522. https://doi.org/10.1016/ j.diamond.2021.108522.

Dominguez, D., Tiznado, H., Borbon-Nuñez, H. A., Muñoz-Muñoz, F., Romo-Herrera, J. M., Soto, G. (2016). Enhancing the oxidation resistance of diamond powder by the application of Al2 O3 conformal coat by atomic layer deposition. Diamond and Related Materials, 69, 108—113. https://doi.org/10.1016/j.diamond.2016.08.005.

Kongping Wu, Yong Zhang, Jianli Ma, Zhifen Fu, Changzhao Chen. (2020). Two-dimensional hole gas formed at diamond surface by Al2 O3 /diamond interface engineering. Diamond and Related Materials, 105, 107807. https://doi. org/10.1016/j.diamond.2020.107807.

Naichao Chen, Fasong Ju, Fan Zhou, Shuai Chen, Kun Wei,Ping He. (2021). Growth and characterization of chemical vapor deposition diamond coating incorporated (amorphous carbon with high Raman bands induced by CuO particles. Diamond and Related Materials, 116, 108387. https://doi.org/10.1016/j.diamond.2021.108387.

Jing Lu, Yongchao Xu, Yunhe Zhang, Xipeng Xu. (2017). The eff ects of SiO2 coating on diamond abrasives in sol-gel tool for SiC substrate polishing. Diamond and Related Materials, 76, 123—131. https://doi.org/10.1016/j.diamond.2017.05. 003.

Congxu Zhu, Can Cui, Xiwang Wu, Bowen Zhang, Dong Yang, Hongxiao Zhao, Zhi Zheng. (2020). Study on surface modifi cation of diamond particles and thermal conductivity properties of their reinforced metal-based (Cu or Mg) composides. Diamond and Related Materials, 108 (October 2020), 107998. https://doi.org/10.1016/j.diamond.2020.107998.

Herrmann, M., Matthey, B., Gestrich, T. (2019). Boron-doped diamond with improved oxidation resistance. Diamond and Related Materials, 92 (February 2019), 47—52. https://doi.org/10.1016/j.diamond.2018.12.001.

Youhong Sun, Chi Zhang, Jinhao Wu, Qingnan Meng, Baochang Liu, Ke Gao, Linkai He (2019). Enhancement of oxidation resistance via titanium boron carbide coatings on diamond particles. Diamond and Related Materials, 92 (February 2019), 74—80. https://doi.org/10.1016/j.diamond.2018.12.019.

Lavrinenko, V. I., Solod, V. Yu. (2016). Oxidation or oxide materials in the machining zone in superabrasive grinding — a factor of infl uence on the grinding performance. J. Superhard Mater., 38(6), 417—422. https://doi.org/10.3103/S106345761606006X.

Lavrinenko, V. I., Solod, V. Yu., Kashynskyi, I. S., Dobroskok V. L. (2020). Determination of oxides intended for the sur face modifi cation of diamond grains by the functional characteristics. Journal of Superhard Materials, 42(6), 417—422. https:// doi.org/10.3103/s1063457620060064.