中文摘要：

概述负热膨胀材料的发展历程及近年的主要研究成果,介绍负热膨胀的微观机理,分析几种典型负热膨胀材料的特点,展望新型锰氮化物负热膨胀材料的应用前景,探讨负热膨胀材料研究所面临的问题。

英文摘要：

The development and the major achievements of studies on negative thermal expansion materials are reviewed. Various mechanisms to explain negative thermal expansion are discussed with several typical negative thermal expansion materials as examples. The recently discovered manganese nitrides negative thermal expansion material and the problems related to this important new class of materials are discussed in details.