Solidification of Containerless Undercooled Melts
1. Auflage Juli 2012
XXIV, 554 Seiten, Hardcover
315 Abbildungen (60 Farbabbildungen)
21 Tabellen
Monographie
Kurzbeschreibung
Bringing together the top international researchers in the field, this reference explains the fundamentals and applications, covering the background needed to make solids from melts with defined properties -- on earth and in space.
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All metallic materials are prepared from the liquid state as their parent phase. Solidification is therefore one of the most important phase transformation in daily human life. Solidification is the transition from liquid to solid state of matter. The conditions under which material is transformed determines the physical and chemical properties of the as-solidified body. The processes involved, like nucleation and crystal growth, are governed by heat and mass transport.
Convection and undercooling provide additional processing parameters to tune the solidification process and to control solid material performance from the very beginning of the production chain.
To develop a predictive capability for efficient materials production the processes involved in solidification have to be understood in detail.
This book provides a comprehensive overview of the solidification of metallic melts processed and undercooled in a containerless manner
by drop tube, electromagnetic and electrostatic levitation, and experiments in reduced gravity.
The experiments are accompanied by model calculations on the influence of thermodynamic and hydrodynamic conditions that control
selection of nucleation mechanisms and modify crystal growth development throughout the solidification process.
Demixing of Cu-Co alloys showing a metastable miscibility gap
Short range order in undercooled melts
Influence of order in undercooled liquids on crystal nucleation
Crystal nucleation in undercooled melts
Phase field crystal modelling of homogeneous and heterogeneous crystal nucleation
Effects of transient heat and mass transfer and competitive nucleation on phase selection in rapid solidification
Nucleation of metastable phases in undercooled melts
Nucleation within the mushy-zone
Measurements of crystal growth velocities in undercooled melts of metals
Measurements of crystal growth in undercooled melts of semiconductors
Measurements of crystal growth dynamics in strong external magnetic fields
Influence of convection on dendrite growth dynamics by AC + DC levitation technique
Development of a numerical approach for modelling dendritic growth in EML of liquid metal drops
Mesoscopic modelling of dendrite growth in undercooled melts
Microscopic modelling of growth kinetics in undercooled melts
Multiscale solidification modelling of EML processed samples
Interaction of fine particles with dendrites in undercooled melts of semiconducting materials
Quantitative analysis of alloy structures solidified under limited diffusion conditions
German Aerospace Center (DLR) in Cologne. He is full professor of physics at the Ruhr-University Bochum. Dieter Herlach has authored more than 300 scientific publications in refereed journals and organized sixteen conferences and symposia. He is author and editor of six books and member of the advisory board of Advanced Engineering Materials (Wiley-VCH). He was member of the advisory board of directors of the German Physical Society and deputy chairman of the German Society of Materials Science and Engineering. Two priority programs of the
German Research Foundation (DFG) and several European projects of the European Space Agency and the European Commission were coordinated by him. He was lead scientist for NASA Spacelab missions IML2 and MSL1 and granted as honorary professor of four Chinese Universities and Research Centers.
Douglas M. Matson is Vice Chairman and Associate Professor in the Mechanical Engineering Department at Tufts University, Medford MA, USA. He is an internationally recognized expert with over fifty peer reviewed articles in thermal manufacturing, machine design, materials processing, solidification research, and microgravity experimentation. He has organized five symposium, is the former president of the North Alabama Chapter of the American Society for Materials (ASM) and received an Erskine Fellowship at the University of Canterbury, Christchurch, New Zealand. He has served as lead scientist for the MSL-1 Spacelab mission and currently is the NASA facility scientist for the MSL-EML project aboard the International Space Station.
