Powder Metallurgy (PM) has advanced considerably during the last seventy years. This paper describes the conventional press & sinter process used for manufacturing highly sophisticated net-shape metal components. It highlights process advantages and the effects derived from material or process choices. Those choices must be understood when designing PM components since they significantly effect...

The article explains the term powder metallurgyand defines main differences from classical methods of metallurgy. Historical aspects development metallurgy technologies since ancient times are described. technological and their application for production modern products presented. areas various types listed

The supply chain for metal powders used in additive manufacturing (AM) is currently experiencing exponential growth and with this growth come new powder suppliers, new powder manufacturing methods and increased competition. The high number of potential supply chain options provides AM service providers with a significant challenge when making decisions on powder procurement. This paper provides...

Due to the large thermal neutron absorption cross section of 10B, B4C-Al composites have been used as neutron absorbing materials in nuclear industries, which can offer not only good neutron shielding performance but also excellent mechanical properties. The distribution of B4C particles affects the mechanical performance and efficiency of the thermal neutron absorption of the composite materia...

recovery of gold and other valuable metals from electronic scrap involves a complex metallurgical flow sheet and requires state-of-the-art recovery technologies that are available in large-scale, integrated smelter and refinery operations. at the end of their use, electronic and other electrical product scrap offer an important recycling potential for the secondary supply of gold and silver int...

When a metallic powder is subjected to a suffkiently high pressure a certain amount of adhesion takes place between individual particles. If this compact i s then sintered the bond is improved by diflusion and intergranular grain growth. The earliest known platinum objects were fabricated by such a powder metallurgical process, and when European scientists first addressed the problem of manufac...

B. Panic, Department of Metallurgy, Silesian University of Technology, Katowice, Poland The results of experimental investigations concerning radial distribution of powder accumulation in bed and static pressure were presented in this paper. To realize this research physical model of gas-po wder two phase fl ow with descending bed was projected and constructed. Amounts of “dynamic” and “static”...

Stereocomplexation between enantiomeric poly(l-lactide) (PLLA) and poly(d-lactide) (PDLA) provides an avenue to greatly enhance performance of eco-friendly polylactide (PLA). Unfortunately, although the manufacturing of semicrystalline polymers generally involves melt processing, it is still hugely challenging to create high-performance stereocomplexed polylactide (sc-PLA) products from melt-pr...

The chemistry surrounding the pyrolysis of N,NЈ-ethylenebisstearimide (EBS) compacted with iron powder is described for the first time. Heat treatment is carried out in a 5 vol pct hydrogen atmosphere (balance nitrogen) over the 100 °C to 850 °C range. The exhaust from the furnace is monitored by Fourier transform infrared and dispersive ultraviolet absorption spectroscopy; condensable material...

In Powder Metallurgy the knowledge of the mechanisms governing the deformation behaviour of the material during its processing is in an initial stage due to the lack of an elasto-plastic model that could explain the mechanical behaviour, specially when the initial stage of powder die compaction is the one to be considered. For this reason geological models such as Cam-clay and Cap [1, 2, 3, 4] ...