论文部分内容阅读
1.前言 材料是人类进化的重要里程碑,新材料是新技术的重要关键。陶瓷材料具有一些金属和其他材料不可比拟的特性,如高熔点、高硬度,高的比强度、比刚度,高的耐热性、化学稳定性和低的线膨胀系数(约为金属的1/4或更低),良好的抗热冲击性能,以及独特的电性能、光性能、磁性能等等。例如陶瓷绝热内燃机热效率可达45％以上,减少燃料消耗34％。正由于陶瓷材料的优异性能,所以作为结构材料和功
1. Foreword Materials are important milestones in human evolution, and new materials are the key to new technology. Ceramic materials have some incomparable properties of metals and other materials such as high melting point, high hardness, high specific strength, specific stiffness, high heat resistance, chemical stability and low coefficient of linear expansion (about 1 / 4 or lower), good thermal shock resistance, and unique electrical, optical, magnetic properties, and the like. For example, ceramic thermal insulation engine thermal efficiency up to 45%, reducing fuel consumption by 34%. Because of the excellent performance of ceramic materials, so as a structural material and work