History of Materials S.J.T.U. Phase Transformation and Applications Stone Age (35,0007eams)） Aramid Fibers. Bronze Age Carbon (1.800 Yeas) Iron Age Polymer Age (3300Yeas) (-50 Years) Concrete/Steel (~60 Years) Silicon Age (35 Years) 子 8 Fibers 6 Composites 4 2 Information Age 正 wood. Cast Stone Bronze Iron Steel Aluminium (15 Vears) YEAR 1800 19002000 5000 4000 3000 2000 1000 0 1000 1900 1960 1990 2010 BC AD SJTU Thermodynamics of Materials Spring2006©X.J.Jin IntroductionPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Introduction History of Materials