Low temperature heat capacity and thermal stability of nanocrystalline nickel
Data(s) |
08/04/2002
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Resumo |
The heat capacity (C-p) of nanocrystalline nickel (nc-Ni, 40 mn crystallite size) has been measured over the temperature range of 78-370 K with a high-resolution automated adiabatic calorimeter. The measured results are compared with the C-p values of the corresponding coarse-grained crystal, and an enhancement of heat capacity of the nanocrystalline nickel was observed to be 2-4% in the temperature range between 100 and 370 K. The thermal stability of the nanocrystalline nickel sample was determined by a differential scanning calorimeter and a thermogravimetric system. The melting point of nc-Ni is the same as that of the corresponding coarse-grained crystalline nickel and the sample is stable at temperature lower than 500 K. (C) 2002 Elsevier Science B.V. All rights reserved. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
王岚;谭志诚;孟霜鹤;梁东白;刘北平.Low temperature heat capacity and thermal stability of nanocrystalline nickel,Thermochimica Acta,2002,386(1-2):23-26 |
Palavras-Chave | #nanocrystalline nickel #phonon specific heat #adiabatic calorimeter |
Tipo |
期刊论文 |