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| 纳米颗粒低温摩尔热容特性 | |
| 引用本文： | 董丽娜,岳丹婷,张文孝,于功志. 纳米颗粒低温摩尔热容特性[J]. 大连海事大学学报(自然科学版), 2010, 36(3) |
| 作者姓名： | 董丽娜 岳丹婷 张文孝 于功志 |
| 作者单位： | 大连海洋大学,机械工程学院,辽宁,大连,116023;大连海事大学,轮机工程学院,辽宁,大连,116026 |
| 摘 要： | 为研究纳米颗粒低温热容特性,用扫描电子显微镜测定纳米颗粒试样粒径;在108—385 K,用精密低温绝热量热计测定纳米颗粒试验的摩尔热容,拟合出摩尔热容与热力学温度的函数关系式.实验数据与其对应的其他粒径纳米颗粒的热容文献数据和粗晶热容数据比较结果表明,纳米颗粒的摩尔热容基本随纳米颗粒尺寸的减小而递增. |
| 关 键 词： | 纳米颗粒 低温热容 粒径 |
Characteristics of low-temperature molar heat capacity of nano grains |
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| DONG Lina,YUE Danting,ZHANG Wenxiao,YU Gongzhi. Characteristics of low-temperature molar heat capacity of nano grains[J]. Journal of Dalian Maritime University, 2010, 36(3) | |
| Authors: | DONG Lina YUE Danting ZHANG Wenxiao YU Gongzhi |
| Affiliation: | DONG Lina1,YUE Danting2,ZHANG Wenxiao1,YU Gongzhi1(1.Mechanical Engineering College,Dalian Ocean University,Dalian 116023,China,2.Marine Engineering College,Dalian Maritime University,Dalian 116026,China) |
| Abstract: | To study the characteristics of low-temperature heat capacity of nano grains,the size of nano grains was determined by using scanning electron microscope(SEM).The molar heat capacity of nano grains was measured with high precision adiabatic low-temperature calorimeter from 108 K to 385 K,and the relationship between molar heat capacity and thermodynamic temperature was established.The measured molar heat capacity values were compared with those of nano grains in other size and coarse crystal grains cited fr... |
| Keywords: | nano grains low-temperature heat capacity grains size |
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