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Gas – nitrogen; cathode material – molybdenum.
The substrate material was WC-8%Co hard alloy and 40Ch (5135) steel much used as tool and structural materials.
Acknowledgments The work was supported by the grant of Russian Science Foundation (project No. 14-29-00091).
References [1] Handbook of Vacuum Arc Science and Technology.
Shugurov, Automated vacuum ion-plasma installation, Russian Physics Journal [Izvestiya Vuzov.

In future, a study will be conducted for various work piece materials to study the effect of cryogenic treatment on carbide inserts for different materials.
Stiasny, Effect of deep cryogenic treatment on the mechanical properties of tool steels, Journal of Materials Processing Technology 118 (2001) 350-355
Junik, Effect of cryogenic treatment on distribution of residual stress in case carburized En 353 steel, Materials Science and Engineering: A 479 (2008) 229-235
Pugh, Effect of cryogenic treatment on the mechanical properties of 4340 steel, Journal of Materials Processing Technology 186 (2007) 298-303
Tuckart, Cryogenic treatments on AISI 420 stainless steel: Microstructure and mechanical properties, Materials Science and Engineering: A 605 (2014) 236-243

In any case, the materials utilized for absorbing region are costly [1].
The Nanomaterials used as absorbing materials show improved optic, chemic and mechanic properties in contrast with the mass material [6].
SPT is almost widely recognized nowadays due to its relevance to delivering an assortment of directing and semiconductor materials.
"Variations of Optical and Structural Properties of CoxOy Thin Films with Thermal Treatment. " Indian Journal of Materials Science 2014 (2014), 1-5
Mater. 14/2018). " Advanced Materials 30, no. 14 (2018), 1870094

Materials and methods Experimental design.
Table 1 OC, ON and C/N ratio of the investigated soil and organic materials.
The mineralization rates of organic materials ranked in the order: RS>AF>MS.
The addition of organic materials increased the amount of fresh organic matter in the soil, thus MBC in the soil after organic materials treatment was significantly higher than the control.
Zhang: Chinese Journal of Soil Science.

Introduction Steel bonded carbide is a kind of composite materials which the steel as binder phase, refractory metal carbides (titanium carbide, tungsten carbide) as hard phase.
The infiltration casting method is used for many times in development and application of composite materials for the steel substrate preparation more [9].
Experiment Experimental materials.
Fig.1 SEM images of raw materials (a) TiC powers (b) Ti powders.
[10] Konopka K, Olazówka-Myalska A, Szafran M: Materials Chemistry and Physis, vol. 81(2003), p329.

Schneider: Journal of Magnetism and Magnetic Materials Vols. 254-255 (2003), p. 302
Rodríguez: Journal of Magnetism and Magnetic Materials Vol. 323 (2011), 2524
Szpunar: Journal of Magnetism and Magnetic Materials Vol. 321 (2009), p. 1928
Paolinelli: Materials Science Forum Vols. 467-470 (2004), p. 869
Bezerra: Materials Science Forum Vols. 775-776 (2014), p. 427

Materials Science and Engineering: A, 2007,454:461-466
Materials Science and Engineering: A, 2014, 594(31): 7-16
Materials Science and Engineering A. 2005;392: 145–149
Materials science and engineering A, 587(2013) 79-84
Computational Materials Science 2009, 46(2): 431-437.

Introduction The biomedical absorbable hemostatic materials have got more and more attention of people with the continuous development of medical technology.
In order to enhance the properties of hemostasis of chitosan and its derivatives hemostatic materials, ion or medication with function of hemostasis and anti-inflammatory could be composited [9,10].
Materials and Methods Materials and Equipments.
The kinetic energy materials.
Xu: Science and Technology of Food Industry, Vol. 28 (2007) No.11, p.81

This article describes the problems of deterioration of the quality of processed raw materials due to depletion of mineral resources.
After a thorough analysis of the experience of world-known research and technologies for processing such raw materials [7-10], we proposed to use nitric acid for processing of such materials, which is one of the most effective oxidants and reagents for leaching [11,12].
Materials and Methods The chemical composition of the studied raw materials is presented in Table 1.
Laboratory studies of the process of nitric acid leaching of the studied materials were carried out.
Acknowledgements The reported study was funded by the Russian Science Foundation under grant № 18-19-00186.

Nanoparticles have a nanometer scale size, and nanometer-sized materials' properties differ from larger materials (bulk).
Where nano-sized materials have chemical, physical and biological properties that are superior to large-sized materials [8].
Materials and Methods Material and Instrumentation The material used in this research was avocado leaves (Persea americana Mill.).
Sci, 9(1), 139-147. http://journal.unnes.ac.id/sju/index.php/ijcs [24] Üzer, A., Can, Z., Akin, Ii., Erçaǧ, E., & Apak, R. (2014). 4-aminothiophenol functionalized gold nanoparticle-based colorimetric sensor for the determination of nitramine energetic materials.
Journal of Applied Pharmaceutical Science, 8(1), 073–079. https://doi.org/10.7324/JAPS.2018.8111 [35] Taba, P., Parmitha, N.