%0 Journal Article
%T Molecular dynamics study on thermal conductivity of diamond nanoparticles<br>纳米金刚石颗粒导热系数的分子动力学研究
%A Li Xiao-Bo
%A Tang Da-Wei
%A Zhu Jie
%A <br>李小波
%A 唐大伟
%A 祝 捷
%J 中国科学院研究生院学报
%D 2008
%I 
%X By using molecular dynamics (MD) simulation method, we studied temperature dependence and nanoparticle-size dependence of thermal conductivity of diamond nanoparticles. In order to get more reliable results, equilibrium molecular dynamics (EMD) method was applied. We set a relatively long integral time in the calculation of heat current autocorrelation function (HCACF), and got convergent results. Our results indicate that due to size effect, thermal conductivity of diamond nanoparticles is smaller than the one of bulk diamond. As temperature varies, thermal conductivity shows a peak value at 61.6K, which behaves a little different from bulk diamond. As particle size increases, thermal conductivity increases; from the tendency of our plot, we predict that thermal conductivity of diamond nanoparticles will converge at the value of bulk diamond with a proper size. More work will be done on this prediction in our future researches.
%K diamond nanoparticles
%K thermal conductivity
%K molecular dynamics simulation<br>纳米金刚石颗粒
%K 导热系数
%K 分子动力学模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=E606FEC457C7FA21E539BAD3C5821497&yid=67289AFF6305E306&vid=C5154311167311FE&iid=94C357A881DFC066&sid=4720E9D07E8A2290&eid=ED9DF3402785F68D&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=0&reference_num=8