功能梯度材料及其在内燃机燃烧室中的应用  

Functionally graded materials and its application in IC engine

作　　者：冯忆艰[1] 桂长林[1] 孙军[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《安徽工程科技学院学报（自然科学版）》2004年第2期71-78,共8页Journal of Anhui University of Technology and Science

基　　金：国家自然科学基金资助项目(50175023)

摘　　要：功能梯度材料是一种新型的复合材料,综述了其特征和性能及其热—机械理论分析的研究进展,包括一维稳态温度场的精确解,动态热载作用下的复合材料层合板模型,热载作用下的裂纹问题.并综述了功能梯度材料目前常采用的一些制备方法及使用情况,包括火花等离子烧结技术、粉末冶金法、离子结构工艺等.还综述了功能梯度材料常用的一些研究方法,如衍射法、优化方法、变形模型、设计的模拟模型以及功能梯度材料在内燃机零部件中应用研究的情况及研究的方法.最后提出了将功能梯度材料应用于内燃机燃烧室的设想.Functionally graded materials( FGM) is a new compound materials. This paper summarizes the character and capability of this material. Its thermal-mechanism theory research status is also summarized, including the exact solution of one-dimension steady temperature field , compound material layer plywood model under dynamic hot-carry action and crack problem under hot-carry action. And, some preparation methods of FGM and their applications are dealt with, including spark plasma sinter technology, powder metallurgy method and plasma structure craftwork. Besides, some research methods of FGM are also presented, such as diffraction method, optimizing method, transmutation model and the model of design modeling and so on. Finally, conception is proposed about applying FGM to the burning chamber of the engine is put forward.

关 键 词：功能梯度材料 内燃机 燃烧室 热障层 

分 类 号：TK405[动力工程及工程热物理—动力机械及工程]