论文部分内容阅读
大千世界无奇不有,看得见、模得着甚至看不见、摸不着的无一不是材料的世界,形形色色的材料组成了精彩的世界。纵观历史,人类文明史或许就是一部材料的发展史,旧石器、新石器、铜器、铁器……硅时代,历史学家依据可使用的主导材料划分人类历史的发展时期,足见材料对于人类文明产生的影响,甚至有人预测未来是石墨烯的时代。自1903年美国莱特兄弟以约47%的木材、35%左右的钢材和一定数量的布料作为主
Amazing, visible, moldless or even invisible, unpredictable is the material world, all kinds of materials form a wonderful world. Throughout history, the history of human civilization may be a history of material development. Paleoliths, Neolithic, Bronze, Ironware ... In the Silicon Age, historians divided the development of human history based on the available leading materials, The impact of human civilization, and even some people predict the future is graphene era. Since 1903, the Wright Brothers in the United States have made use of about 47% of timber, about 35% of steel and a certain amount of fabric