| http://www.w3.org/ns/prov#value | - In part this was due to discoveries, such as the discovery of icosahedral (quasicrystalline) phases in certain metalloid alloys therby forming a bridge between the perfect cyrstalline and the topologically disordered state, but mostly advances have come through a steady application of experimental techniques, both old and new, and the further development of theoretical ideas.
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