Ni－ZrO_2精细复合材料的热学性能（I）：比热

Thermal Characteristics of Ni-ZrO_2 Fine Composite Materials (Ⅰ): Specific Heat

微米量级的金属Ｎｉ粉和纳米量级的ＺｒＯ２超细微粒合成的精细复合材料具有特殊的热学性能．含Ｎｉ量为５０～８０ｗｔ％的复合材料的比热大大高于纽曼－卡普定律的计算值，其原因可能与精细复合材料中的界面组元所占的比重大大增加有关．

Fine composite materials composed of micrometer-sized Ni powder and nanometer-sized ZrO2 ultrafine particles possess unique thermal characteristics. Specific heat of the composite containing 50-80wt% Ni is very considerably larger than that calculated by means of Neuma-Carpu Law, this is probably related to the greater volume percentage of boundary component in Ni-ZrO2 fine composite materials.