石器时代人们就利用陶土烧制碗碟,它是人类历史上第一种人造材料。高放陶瓷往往比金属更占优势,它特别坚硬,不易磨损,也不生锈,在高温下没有很高的热膨胀率.八十年代中期日本研究人员已制造了一个全陶瓷无冷却发动机。日本公司现在每年生产20万台陶瓷涡轮压缩机,在四年半中产量增加了十七倍,成本降低了百分之九十三。将来陶瓷活塞销和阀门也会批量 Stone Age people use clay to burn dishes, it is the first human history of man-made materials. High-end ceramics tend to dominate over metals, they are particularly hard, wear-resistant and rust-free, and do not have high rates of thermal expansion at high temperatures. In the mid-1980s Japanese researchers have created an all-ceramic, non-cooled engine. Japanese companies now produce 200,000 ceramic turbocompressors annually, increasing their production by 17 times in four and a half years and reducing the cost by 93%. In the future ceramic piston pin and the valve will be bulk