92 citations of the journal in the Russian Science Citation Index | Vol. 4 No 2 was published on June 22, 2020. | Clarivate Analytics | Control Committee in Education and Science of the Republic of Kazakhstan |


The effect of detonation spraying on the phase composition and hardness of Al2O3 coatings

Number 2_Vol.4

AUTHORS: B.K. Rakhadilov, D.B. Buytkenov, D. Kakimzhanov, R.S. Kozhanova, G.S. Bektasova

DOI: 10.29317/ejpfm.2020040207

PAGES: 160 - 166

DATE: 2020-06-22


ABSTRACT

The article were studied the effect of detonation spraying on the structure and properties of Al2O3 coatings. It was determined that reducing the delay time between shots is leading to increase the hardness and elastic module of Al2Ocoatings. It was found on the basis of X-ray diffraction analysis that the main reason for the increasing in hardness with a decreasing in the delay time between shots is associated with increasing in the volume fraction of alpha - Al2O3 phase. The studies of X-ray diffraction presented that the highest content of the phase is achieved when the coatings are formed with a delay time between shots of 0.25 s. It was found that increasing in the volume fraction of the alpha - Al2O3 phase is caused by the secondary recrystallization  gamma → alpha, which occurs due to the heating of particles during coating formation, i.e. due to increasing in temperature above 1100C in single spots of the coating when they are put each other.


KEYWORDS

detonation deposition, aluminum oxide, phase, hardness, coating.


CITED REFERENCES

[1] M. Saravanan et al., Materialstoday proceeding 5(6) (2018) 14392-14396.
[2] Sudhansu Ranjan Das et al., Materialstoday proceeding 5 (2018) 6560-6569.
[3] Zh.B. Sagdoldina et al., Eurasian Journal of Physics and Functional Materials 2(3) (2018) 242-250.
[4] A. Sivkov et al., Surface and Coatings Technology 292 (2016) 63-71.
[5] QunWang et al., International Journal of Refractory Metals and Hard Materials 81 (2019) 242-252.
[6] D.K. Yeskermessov et al., Bulletin of the University of Karaganda. Phisics 88 (2017) 8-17.
[7] J. Jayaraj et al., Corrosion Science 48 (2006) 950-964.
[8] D.L. Alontseva, N.V. Prokhorenkova, Bulletin of the University of Karaganda. Phisics 71 (2013) 4-11. (in Russian)
[9] Shaopeng Niu et al., Surface and Coatings Technology 307(A) (2016) 963-970.
[10] M.M. Student et al., Materials Science 54 (2018) 22-29.
[11] B.K. Rakhadilov et al., Key Engineering Materials will be held in Oxford, United Kingdom (2019) 301-306.
[12] Ling Lin et al., Defence Technology 16 (2020) 178-187.
[13] Chang-Jiu Li, Akira Ohmori, Surface and Coatings Technology 82(3) (1996) 254-258.
[14] O.Zywitzki, G.Hoetzsch, Surface and Coatings Technology 76-77(2) (1995) 754-762.
[15] H.C. Lin et al., Appl. Phys. Lett. 87 (2005) 182 904.
[16] Y. Xuan et al., IEEE Electron. Dev. Lett. 28 (2007) 935.
[17] C.-W. Cheng, E.A. Fitzgerald, Appl. Phys. Lett. 96 (2010) 202 101.
[18] K. Siddhartha Dradhan, Surf. Coat. Technol. 76 (2004) 382.
[19] T.C. Chou et al., Scripta Met. 25 (1991) 2203.
[20] V.Y. Ulianitsky et al., Advanced powder Technolog 29 (2018) 1859-1864.
[21] V.Y. Ulianitsky et al., Metals 12 (2019) 1244.
[22] D. Buitkenov et al., Key Engineering Materials 839 (2019) 137-143.
[23] I.S. Batraev et al., Materials Today: Proceedings 4 (2017) 11346-11350.
[24] Camden R. Hubbard, Robert L. Snyder, Powder Diffraction 3(2) (1988) 74-77.
[25] G.C. Bye, G.T. Simpkin, Journal of the American Ceramic Society 57(8) (2006) 367-371.
[26] S. Ruppi et al., Thin Solid Films 516(18) (2008) 5959-5966.


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