钨酸锆因其具有各向同性的负热膨胀性能,自1996年发现以来即获得极大关注。目前一些新发现的具有比钨酸锆更大负热膨胀性的材料,如:碳氮键化合物、铁电陶瓷、反钙钛矿结构的锰氮化合物和纳米粒子也同样备受注目。这些化合物的负热膨胀机理或因其具有振动结构,或因其具有磁性或电学性能的转变。这些具有更大负热膨胀特性的材料在制备不受环境温度变化影响的复合材料方面具有潜在的应用价值。 Zirconium zirconium tungstate has attracted a great deal of attention since its discovery in 1996 because of its isotropic negative thermal expansion. At present, some newly discovered materials with larger negative thermal expansions than zirconium tungstate, such as carbon-nitrogen bonded compounds, ferroelectric ceramics, anti-perovskite structures of manganese and nitrogen compounds and nanoparticles, are also attracting attention. The negative thermal expansion mechanism of these compounds is either due to their vibrational structure or because of their magnetic or electrical properties. These materials with greater negative thermal expansion properties have potential applications in preparing composites that are unaffected by ambient temperature changes.