My research in may:

I made a literature review on sintering of aluminium alloys in different atmospheres. The effectiveness of the sintering atmosphere of most of the aluminum alloys decreases in the order: nitrogen > vacuum >argon > nitrogen+hydrogen = argon+hydrogen. This indicates that the atmosphere plays an active role in the sintering of aluminium. A clue of the beneficial use of nitrogen is the formation of aluminium nitride.

In order to perform sintering in nitrogen and argon atmospheres, I tried to produce green compacts from milled 7475 alloy powder by uniaxial cold pressing at different pressures (200 – 600 MPa). Compacting turned out to be impossible without using a binder. Therefore, I decided to use 1 wt.% of glycerin addition to the powder. The optimal pressure of compacting was 300MPa.

Seminars/meetings:

Fourth meeting of “Local Composite Platform”:
- very interesting lecture on ”Composite layers and regions fabricated by in situ technique in iron and aluminum castings” given by Ewa Olejnik from Faculty of Foundry Engineering, AGH

IMMS seminars:
- “The characteristics of stress-textured areas of heterogeneous structure in selected materials and construction elements” by Sylwia Pawlak,
- “Ultra-thin multilayer polymer films as multifunctional coatings and membranes” by Tomasz Kruk.