Materials Science Forum, Vol.455-456, 857-860, 2004
Powder metallurgy: A major partner of the sustainable development
One of the key concepts of the sustainable development definition by the World Commission on Environment and Development (1992) is the idea of limitations imposed by the state of technology and social organisation on environment's ability to meet present and future needs. A measure of the environmental impact can be stated by the equation: Environmental Impact = (World Population)(2) x(Standard of Living)(2)/(Environmental Efficiency of the Technology)(4) Regarding these concerns, together with economical and legislative reasons, today's state of the art of Powder Metallurgy (PM) fits some of the needs, targeting a higher standard of living of the population. Being a more correct approach to the production of a vast number of metal products, PM, as an improved efficiency process, leads to considerable savings amongst others, in material, energy and manpower, reducing environmental impact. On this paper, some of the major aspects of PM as an environmental efficiency process are stated, being quantitatively compared with real parts produced by conventional methods. Benefits of PM on automotive industry are stated as well, under the same focus.
Keywords:powder metallurgy;sustainable development