Jean-MArie Dubois, Patricia A. Thiel, An-Pang Tsai, Knut Urban
Cambridge University Press, Mar 26, 1999 - Science - 524 pages
Fresh developments indicate that quasicrystals are promising candidates for applications such as coatings, metal-matrix components, hydrogen storage materials, thermal barriers, and infrared sensors. This book provides an update on this field and specifically focuses on progress in the preparation and properties of quasicrystalline for use in technological applications. Papers address commercial application, physical properties, electronic structure, atomic-scale structure, phase equilibria and highlights include some of the first applications of quasicrystalline materials. One such product is a high-strength steel used in surgical tools and electric shavers. The steel contains quasicrystalline precipitates which are unusually stable against Ostwald ripening. This stability is attributed to the low interfacial energy of the precipitates and provides flexibility by making the steel resistant to overaging. An aluminum alloy that meets the specific US Air Force goal of high strength at elevated temperatures is also discussed. A quasicrystalline thermal barrier coating which combines low thermal conductivity and plastic behavior at high temperatures is looked at. These materials have been tested on turbine blades in aircraft engines. Atomic-scale structure hypotheses are also presented.
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Processing of AlCuFe Quasicrystalline Single Grains
Fabrication of High Quality QC Films Via the Route of
Selective Growth of Decagonal AlCo Thin Films by Reactive
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Al-based Al-Cu-Fe AlCuFe alloys AlPdMn amorphous annealing approximant atom cluster atomic structure Audier axis Beeli bulk Burgers vector chemical coatings composition corresponding crystal crystalline phases cubic decagonal decagonal phase decagonal quasicrystal density diffraction patterns diffusion dislocation dodecahedral electron diffraction energy EXAFS experimental Feuerbacher Figure films flow stress formation Fujiwara heat hexagonal high temperature HREM hydrogen i-AlPdMn i-phase icosahedral phase icosahedral quasicrystals ingot interface J.M. Dubois Janot lattice constant layer Lett magnetic materials measured mechanism melting metal microstructure observed obtained orientation oxidation P.A. Thiel particles peak Penrose tiling pentagonal Phil phonon Phys plane plastic deformation properties quasicrystalline quasicrystalline phase quasicrystals quasiperiodic room temperature samples shell shows Singapore single grain single quasicrystal space stability surface symmetry Takeuchi thermal conductivity thermopower tiling transformation transition transmission electron microscopy unit cell values volume wear tracks Wollgarten World Scientific X-ray diffraction