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题名: Low temperature heat capacity and thermal stability of nanocrystalline nickel
作者: Wang, L;  Tan, ZC;  Meng, SH;  Liang, DB;  Liu, BP
关键词: nanocrystalline nickel ;  phonon specific heat ;  adiabatic calorimeter
刊名: THERMOCHIMICA ACTA
发表日期: 2002-04-08
卷: 386, 期:1, 页:23-26
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: 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.
关键词[WOS]: THERMODYNAMIC PROPERTIES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000174685800003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/83161
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Wang, L,Tan, ZC,Meng, SH,et al. Low temperature heat capacity and thermal stability of nanocrystalline nickel[J]. THERMOCHIMICA ACTA,2002,386(1):23-26.
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