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Mathematical Modelling of Structurally Inhomogeneous Porous Materials Forming Processes Mikhailov A.1,a, Shtefan Ye2,b, Mikhailov О.1,c *, Shtern М.1,2,d 1Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine, 3, Omeliana Pritsaka St., 03142, Kyiv, Ukraine 2National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37, Prospect Peremohy, 03056, Kyiv, Ukraine atopic884@gmail.com, beshtefan@ukr.net, c*olmi.2021@gmail.com, dmbsh07@ukr.net Keywords: resource-saving technologies, powder metallurgy, dispersed materials, powder materials, porous blanks, plasticity, pressure compaction processing, numerical modelling, finite element method, software implementation.
Shtern, Method for the Determination of Rational Constructional and Technological Parameters for the Processes of Powder Materials Forming, Key Engineering Materials, 2024, Vol. 973 - pp.53-60 [2] M.
Latypov, Twist Extrusion as a Potent Tool for Obtaining Advanced Engineering Materials: A Review, Advanced Engineering Materials, 19(8), 1600873, (2017)
Kadomsky, Mathematical Simulation of the Organic Disperse Material Mechanical Manufacturing, Eastern- European journal of enterprise technologies, Vol. 2, No 12(68), pp. 55-61, (2014) [8] Abaqus.
Mikhailov, Influence of compaction scheme for porosity distribution and particles deformation during compaction biporous powder mixture in the rigid matrix, Mathematical Models and Computing Experiment in Material Science, Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2012, No 14, pp. .92-98 [13] O.V.

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A Comparative Study of Radon Retention Ability of Crystalline Apatite and Amorphous Oxide Materials F.Z.
Comparative radon investigations of two natural materials, crystalline apatite and amorphous oxide, are presented here.
Introduction Radionuclide retention ability of some natural materials is studied here.
Two materials are studied here: - Apatite which generally crystallize in the hexagonal system (space group P63/m).
So, the two materials studied herein are important emanation sources of radon.

Materials science is getting forward so rapidly that different kinds of materials, decoration, and surface treatment become too many to see.
Every kind of materials, either natural or artificial material, has its own innate sense, which is a unique property and aesthetic feeling different from any other kinds of materials.
• Different materials with the same texture Different materials with the same texture refers to offering new non-inherent sense of a material’s surface or others’ surface, and creating an unified sense for different materials.
The current development of materials science offers unparalleled various materials for the advancement of art and design.
Journal of Zhengzhou Institute of Light Industry (Social Science). (2007) In Chinese [2] Q.

Technology of Mineral Raw Materials Granulation by Electric Arc for Manufacturing of Welding Fused Flux S.V.
Rocks, screening of mining enterprises, ground in ball mills as well as petrurgical raw materials and slag, milled to a fine fraction (0,5 mic - 0,2 mm) may be the furnace of mineral raw materials for granulation.
Festus, Mixture experiments and their applications in welding flux design, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 30 (2008)
Atuanya, Formulation of a Metal Arc Welding Flux with a Potash Enriched Sodium Silicate Binder, Journal of Emerging Trends in Engineering and Applied Sciences, 3 (2012) 497-501
Naumov, Modern Methods of Grading Test of Powdered Components of Welding Materials, Vestnik PNIPU, 1 (2012) 76-84

Evaluation of the Fatigue Limit of Materials in Static Test Using Thermal Analysis: Effect of the Cross-Head Speed G.
Harig, Estimation of the Fatigue Limit by Progressively-Increasing Load Tests, Fatigue of Engineering Materials and Structures, 3, (1980)
Risitano: Thermographic methodology for rapid determination of the fatigue limit of materials and mechanical components, International Journal of Fatigue, 22, 65–73, (2000)
Guglielmino: Infrared investigations for the analysis of low cycle fatigue processes in carbon steels, Journal of Mechanical Engineering Science, Proc.
Emmony: A Note on the Use of the Thermal Response to Deformation as a Damage Assessment Tool, Journal of Materials Science Letters, 9, (1990)

Quality control methods of Al2O3 based ceramic injection molding raw materials Ádám Egész1,2,a , László A.
The technology is well established for standard materials, like stainless steel or oxide ceramics.
Gazulla, „Chemical analysis,” in engineered materials handbook, ASM International, Materials Park, OH. 4 (1997) 125-138
Mende, Nanomilling in stirred media mills, Chemical Engineering Science 60 (2005) 4557-4565
Müller, Vacuum granulation of ceramic powders – Device and ability, Journal of Materials processing Technology 5 (2005) 458-471

Thus, it can be said that cyclic ABI provides a method to estimate the failure life of materials and it is capable of detecting prior damage in materials and correlate its failure life.
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[18] Dobes, F., and Milicka, K., “Application of creep small punch testing in assessment of creep lifetime”, Materials Science and Engineering A, 510–511, 2009, pp. 440–443
[22] Bai, T., Chen, P., and Guan, K., “Evaluation of stress corrosion cracking susceptibility of stainless steel 304L with surface nano-crystallization by small punch test”, Materials Science & Engineering A, Vol. 561, 2012, pp. 498–506

Effect of Sintering Temperature on Crystal Structure and Surface Morphology of NdFeO3 Oxide Alloy Materials Prepared by Solid Reaction Method J.
This research to study the effect of sintering temperature on the crystalline structure and surface morphology of NdFeO3 oxide alloy materials.
Advanced in Natural Science: Nanoscience and Nanotechnology 2 (2011) 015012–15021 [3] Ru Z et al.
Materials Research Bulletin. 48 (2103) 1688–1693
Materials Chemistry and Physics (2009) 160-167.

Locmele, A composite material based on recycled tires, Mechanics of Composite Materials 45 (2009) 145-150
Avci , Materials and Manufacturing Process 24:6 (2009) 688-692
Lomeli, Correlation between composition and properties of composite material based on scrap tires, Scientific Journal of Riga Technical University: Material Science and Applied Chemistry 21 (2010) 35-38
Plesuma, L.Locmele, The influence of composition and technology on the properties of composite material based on scrap tires and polymer binder, Scientific Journal of Riga Technical University: Material Science and Applied Chemistry 21 (2011) 103- 106
Plesuma, Investigation of possibility to regulate boundary processes in composite material made froms crap tires and polymer binder, Scientific Journal of Riga Technical University: Material Science and Applied Chemistry 27 (2013) 32-34.