Implementation of Nanoparticles in Materials Applied in Foundry Engineering

Abstract

The ceaseless progress of nanotechnology, observed in the last years, causes that nanomaterials are more and more often applied in several fields of industry, technique and medicine. E.g. silver nanoparticles are used in biomedicine for disinfection and polymer nanoparticles allow insulin transportation in pharmacology. New generation materials containing nanoparticles are also used in the chemical industry (their participation in the commercial market equals app. 53 %). Nanomaterials are used in electronics, among others for semiconductors production (e.g. for producing nanoink Ag, which conducts electric current). Nanomaterials, due to their special properties, are also used in the foundry industry in metallurgy (e.g. metal alloys with nanocrystalline precipitates), as well as in investment casting and in moulding and core sand technologies. Nanoparticles and containing them composites are applied in several technologies including foundry practice, automotive industry, medicine, dentistry etc. it is expected that their role and market share will be successively growing.

Archives of Metallurgy and Materials

“…%. In the microstructure a numerous of so-called midribs -a thin-plate isothermal martensite, formed in carbon rich austenite before bainitic transformation [26] and accelerating bainitic transformation [27] are observed. The hardness of the austempered steel is similar to the hardness of steel treated conventionally and amounts to 510 and 550 HV2 respectively.…”

Archives of Foundry Engineering

“…Castings accompany man for about five thousand years [1], and the modern casting technologies are considered as basic methods of production both of elements of various machines and devices, as well as other items, for example artistic ones or the products used in medicine [2][3][4][5][6]. Both the materials, i.e.…”