+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Fedoseyev, A. I. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 11 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 Next  Novel Directional Solidification of Hypermonotectic Alloys Author(s): Grugel, R. N.; Fedoseyev, A. I. Abstract: There are many metal alloy systems that separate into two different liquids upon cooling from a higher temperature. Uniform microstructural development during solidification of these immiscible liquids on Earth is hampered ... NASA Center: Marshall Space Flight Center Publication Year: 2001 Added to NTRS: 2004-11-03 Document ID: 20010020660 Novel Directional Solidification of Hypermonotectic Alloys Author(s): Grugel, Richard N.; Fedoseyev, A. I. Abstract: There are many metal alloy systems that separate into two different liquids upon cooling from a higher temperature. Uniform microstructural development during solidification of these immiscible liquids on Earth is hampered ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000072883 Modeling of Ultrasonically Generated Liquid-Liquid Dispersions During Controlled Directional Solidification Author(s): Grugel, R. N.; Fedoseyev, A. I. Abstract: There are innumerable two-component systems in which two very different liquid phases co-exist in equilibrium over a range of temperature and composition, e.g., oil and water, salt fluxes and solders, aluminum and lead. ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000074111 An Experimental and Mathematical Study to Evaluate the Role of Ultrasonic Energy in Promoting Microstructural Uniformity During Controlled Directional Solidification Processing Author(s): Grugel, R. N.; Fedoseyev, A. I. Abstract: There are many commercially relevant metal and non-metal "alloy" systems that separate into two different liquids upon cooling from a higher temperature. Consequently during solidification processing the inherent density ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000109847 Characterizing the Use of Ultrasonic Energy in Promoting Uniform Microstructural Dispersions in Immiscible Mixtures Author(s): Grugel, R. N.; Fedoseyev, A. I. Abstract: Gravity driven separation and preferential wetting precludes uniform microstructural distributions during solidification processing of immiscible, liquid-liquid mixtures. Historically, it is, however, established that ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000111082 Characterizing the Use of Ultrasonic Energy in Promoting Uniform Composite Growth in Immiscible Alloys Author(s): Grugel, Richard N.; Fedoseyev, A. I. Abstract: The results of experimental investigation and mathematical modeling for immiscible alloys subjected to ultrasonic influence are presented. It is known that in inoculated light alloy melts, ultrasonic treatment creates a new ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000070865 Magnetic Field Suppression of Flow in Semiconductor Melt Author(s): Fedoseyev, A. I.; Kansa, E. J.; Marin, C.; Volz, M. P.; Ostrogorsky, A. G. Abstract: One of the most promising approaches for the reduction of convection during the crystal growth of conductive melts (semiconductor crystals) is the application of magnetic fields. Current technology allows the experimentation ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 19990064600 Characterizing the Use of Ultrasonic Energy in Promoting Uniform Microstructural Dispersions in Immiscible Mixtures Author(s): Grugel, R. N.; Fedoseyev, A. I. Abstract: Gravity driven separation and preferential wetting precludes uniform microstructural distributions during solidification processing of immiscible, liquid-liquid mixtures. Historically, it is, however, established that ... NASA Center: Marshall Space Flight Center Publication Year: 2001 Added to NTRS: 2004-11-03 Document ID: 20010020658 Minimizing Segregation During the Controlled Directional Solidification of Dendritic Alloys Publication: Metallurgical and Materials Transactions Author(s): Grugel, R. N.; Fedoseyev, A. I.; Kim, S. Abstract: Gravity-driven thermosolutal convection that arises during controlled directional solidification (DS) of dendritic alloys promotes detrimental macro-segregation (e.g. freckles and steepling) in products such as turbine ... NASA Center: Marshall Space Flight Center Publication Year: 2002 Added to NTRS: 2004-11-03 Document ID: 20020048311 Some Novel Solidification Processing Techniques Being Investigated at MSFC: Their Extension for Study Aboard the ISS Author(s): Grugel, R. N.; Anilkumar, A. V.; Fedoseyev, A. I.; Mazuruk, K. Abstract: The float-zone and the Bridgman techniques are two classical directional solidification processing methods that are used to improve materials properties. Unfortunately, buoyancy effects and gravity-driven convection due to ... NASA Center: Marshall Space Flight Center Publication Year: 2001 Added to NTRS: 2004-11-03 Document ID: 20010037921 1 2 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007