Ovuntu materiallarının əsaslarıSyllabus

Subject code

İFS-36139y

Credits

8

Student workload

240

Semester

Autumn semester

Academic year

2025-2026

Subject type

Elective

Form of education

Full-time

Language of instruction

Azerbaijani

In-class hours

a) 60 saat - mühazirə b) 30 saat - məşğələ

Out-of-class hours

a) 90 saat - sərbəst iş b) 60 saat - hazırlıq

Ovuntu materiallarının əsasları” fənninin məqsədi 050623 – “materiallar mühəndisliyi” ixtisası üzrə bakalavr pilləsində təhsil alan tələbələrə ovuntu materiallarının istehsalı xassələrini, onların emal proseslərini, presləmə və bişirmə xüsusiyyətlərini öyrətmək, həmçinin bu materialların müxtəlif sahələrdə tətbiqi üçün bilik və bacarıqlarını aşılamaqdır. tələbələr ovuntu materiallarının fiziki, kimyəvi və mexaniki xassələrini öyrənərək, onların materialşünaslıqdakı rolunu başa düşürlər.

• lecture
• interactive discussion
• seminar
• presentations

1. 1

   CLO 1: Students will fully master the specific technological steps of powder metallurgy and advanced mechanical alloying processes. they will be able to analyze the physico-chemical volume phenomena occurring in the processes of obtaining, pressing and cooking (sintering) pure metal powders. in particular, the mechanisms of controlling the internal properties of hybrid and composite structures formed with the presence of components such as cast iron, graphite powder and microtalc will be studied. at the end of the course, students will be able to design complex materials through abrasive metallurgy that cannot be obtained by traditional smelting methods.

1. 1.
   Introduction. production of sewing materials. obtaining scores by mechanical methods. shredding of compact materials.Lecture

   The basic principles of powder metallurgy, an introduction to the technologies of obtaining metal scraps and the methods of dispersing (shredding) compact metals by mechanical means.

2. 2.
   Grinding in rotating spherical, vibrating spherical, vortex and hammer mills.Lecture

   Construction of different types of mills, working principles, technological factors affecting the degree of crushing of the material.

3. 3.
   Spraying and granulation of liquid metal and alloys.Lecture

   Atomization (spraying) of liquid metal with a high-pressure gas or water jet, the cooling rate of the droplets and the formation of dust.

4. 4.
   Acquisition of metal scraps by physico-chemical methods. obtaining metal scraps by reducing chemical compounds. physico-chemical basis of reduction.Lecture

   Thermodynamic and kinetic principles of powder production from metal oxides, application of solid and gaseous reducing agents.

5. 5.
   Obtaining iron oxides from oxides. reduction of iron oxide with hydrogen.Lecture

   Production of iron powder from iron ore or sawdust, advantages of hydrogen as a reductant and process parameters.

6. 6.
   Reduction of iron oxide with carbon monoxide and solid carbon. obtaining iron powder by soda method and chlorine method.Lecture

   Carbon-based reduction processes, technological flow of soda and chloride methods and application areas of these methods.

7. 7.
   Purchase of tungsten shavings. reduction of tungstic anhydride with hydrogen. reduction of tungstic anhydride with carbon. hydrogen reduction of tungsten and refractory metals.Lecture

   Features of hydrogen reduction for obtaining high purity powders of special metals such as tungsten.

8. 8.
   Extraction of copper by metallothermic reduction method. reduction of titanium chloride with sodium. production of metal scraps by electrolysis. electrolysis of aqueous solutions.Lecture

   Theoretical basis of metallothermy and electrolysis methods, formation and purification of dust in reactor conditions.

9. 9.
   Purchase of copper scrap. electrolyte regeneration and circulation. ovuntu washing and stabilization. dehydration and drying of ovuntu.Lecture

   Management of electrolytic baths in the production of copper powder, washing and drying stages to maintain the quality of the powder.

10. 10.
    Obtaining iron scrap by electrolysis method. electrolysis of molten substances.Lecture

    Production of electrolytic powder of iron, characteristics of processes of electrolysis of alloys and salts in molten state.

11. 11.
    Obtaining metal scraps by cementation, autoclave precipitation and intercrystalline corrosion method.Lecture

    Hydrometallurgical methods (cementing and autoclave precipitation), dust extraction through chemical activation of the material.

12. 12.
    Obtaining rubs from carbonyl compounds by the method of thermal dissociation. obtaining scraps by the method of condensation of metals.Lecture

    Preparation of nanostructured powders by decomposition of carbonyl (nickel, iron) gases and condensation of metal vapors (vapor-phase synthesis).

13. 13.
    Physical, chemical and technological properties of rubs.Lecture

    Effect of characteristics such as powder dispersity, shape, flowability, bulk density and chemical purity on product quality.

14. 14.
    Physical, chemical and technological properties of rubs.Lecture

    Effect of characteristics such as powder dispersity, shape, flowability, bulk density and chemical purity on product quality.

15. 15.
    The ability to press and mold the products. preparation of prints for pressing. cold pressing in press molds.Lecture

    Mixing of powders, lubrication and filling in molds, deformation of powder particles during cold pressing.

16. 16.
    Regularity of compression of ovuntu in a press-mold. processes that occur during pressing. dependence of briquette density on pressing pressure. friction on the press-mold wall.Lecture

    Effect of compression regularities, pressure distribution and wall friction on briquette quality (density gradient) during pressing.

17. 17.
    Lateral pressure, friction and push-out pressure. strength of the briquette.Lecture

    Calculation of side pressures generated during the pressing process and the forces required to remove the briquette from the mold.

18. 18.
    The effect of the characteristics of the ovuntu on pressing. defects during pressing and their causes.Lecture

    Effect of powder flowability and particle size on compaction, prevention of cracks and uneven compaction in briquettes.

19. 19.
    Pressing practice. press molds and the main principles of their construction.Lecture

    Preparation of modern press-moulds, material selection and operating modes of pressing machines (mechanical, hydraulic).

20. 20.
    Isostatic and hydrostatic pressing. slicker molding and rolling. punch molding. special pressing methods.Lecture

    Isostatic pressing, slurry casting and extrusion technologies for complex shaped details.

21. 21.
    Hot pressing. cooking. solid-phase cooking and cooking mechanism. cooking in single-component systems. cooking stages. driving forces and mass transfer mechanisms.Lecture

    Physico-chemical basis of sintering (cooking), diffusion, surface tension and mass transfer mechanisms.

22. 22.
    Creep property of crystalline bodies and recrystallization of particles. ovuntu body compaction. the influence of technological factors on the properties of the abrasive body. cooking atmosphere and activation.Lecture

    Recrystallization and creep during cooking, role of protective atmosphere (vacuum, hydrogen) and activated cooking methods.

23. 23.
    Cooking in multicomponent systems. cooking a system of completely mutually soluble components. cooking a system of limited soluble components. cooking a system of insoluble components.Lecture

    Baking kinetics, solid solution formation and interphase interaction of binary and multicomponent alloys.

24. 24.
    Liquid phase cooking. liquid-phase cooking that disappears during heating. liquid phase cooking present during heating until the end of isothermal storage.Lecture

    One of the most effective methods of sintering is the liquid phase

1. Mammadov a.t., namazov s.n. babayev a.i., sharifov z.z. basics of ovuntu metallurgy., baku. 1998, 238 p.