My research in July:

Investigation of samples of 7475 alloy powder sintered in argon or nitrogen atmosphere at different temperatures (600 deg.C, 620 deg.C, 630 deg.C, 640 deg.C, 650 deg.C were used for argon atmosphere and 540 deg.C, 570 deg.C, 590 deg.C for nitrogen atmosphere).
Before sintering, green compacts of milled AA7475 powder (with 1% of glycerin addition) were prepared by uniaxial cold pressing at 300 and 400 MPa.
Metallographic specimens from cross-sections of sintered samples were prepared by mechanical grinding and polishing using 3 µm, 1 µm and 1/4 µm diamond suspensions.
Microstructure observations of prepared samples were carried out using metallographic microscope.

TEM observation of AlN nano-powder used for new 7475/AlN composites preparation by powder metallurgy technique.

Preparation for the exams in following subjects:
“Introduction to materials science”
“Thermodynamics - engineering approach”.