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The present research’ goal is the fabrication of Fe-based composite reinforced with oxide particles with special characteristics (wear, friction coefficient) for friction applications usually the Fe-based composite are obtained through melting and castings followed by other finishing operations. These technologies do not ensure a homogeneous distribution of reinforcement particles and that is why, the authors approached a PM specific technologies to obtained Fe-based composite. The Fe-based powder reinforcement with oxide particles obtained through mechanical alloying the powder was analyzed and characterized and then underwent the operation of milling in the planetary milling with ball, pressing and sintering at different temperatures and durations. SEM analysis had of identifying the distribution compounds into the Fe- matrix, their quantitative evolution and the influence of different parameters. The mechanical characteristics, wear and friction coefficient, were determined.

NiTi alloys, due to the special properties they posses, good corrosion resistance, biocompatibility, and shape memory, are used successfully in the medical field. The paper presents research concerning the elaboration of the NiTi alloy in the form of spherical shape powder with hollow particles. This type of powder would be the raw material for fabricating light weight products like prosthesis or surgical implants. The aim of the research was to elaborate this type of powder and determine the alloy’s phases in correlation with the need of obtaining a specific particle shape. Along with these aspects it was attempted to form different testing samples through sintering operations.

Elaboration of complex multifunctional materials with nanometric structure and controlled characteristics for special applications, implies the use of advanced techniques of powder metallurgy such as mechanical alloying, allowing the structural modeling and designing of material properties. The aims of paper consist in the development of complex multifunction materials with nanometric structure for special use (civil and/or military) for industrial applications. The paper presents briefly some aspect regarding the present stage in production of homogenous mixtures of W-Ni-Cu powders system for manufacturing the materials made of heavy alloys type.

After 11 th September 2001, the global security environment has changed radically, passing from symmetrical to asymmetrical risks and threats. This is especially based on using different forms at rapid reaction based on using advanced technologies in the field of communications sensors and ammunitions. The researches in the military field are working on identifying those solutions which will allow counter acting those asymmetric actions through using conventional military means, and through increasing their efficiency and reducing the collateral damages. Nowadays, in medium and long range military actions are used 8360 tones of conventional ammunition per 5 days of action (implying large quantities of materials with negative impact on the environment), which have efficiency of max 50% from their real potential. From the data obtained so far, in Iraq 300,000 tones of ammunition with different purposes were used, from which more than 60% were used in urban areas with recognized implications on the environment and the social and economical activities in the area. Through using other technologies to create ammunition (intelligent and nonpolluting) it is considered that at a reduction of 30% of their quantity, their efficiency will raise to over 70%. The aims of this paper consists in the development of complex multifunction materials with nanometric structure and controlled characteristics for special use (civil and or military) with the aid of integrated and flexible technologies for industrial, sectorial and inter-sectorial [1].