%0 Journal Article
%T Dependence of nitrogen concentration in type Ib diamonds on synthesis temperature
%A Yu Tian
%A XiaoPeng Jia
%A ChuanYi Zang
%A ShangSheng Li
%A HongYu Xiao
%A YaFei Zhang
%A GuoFeng Huang
%A Rui Li
%A QiGang Han
%A LiQiu Ma
%A Yong Li
%A XiaoZhou Chen
%A Chong Zhang
%A HongAn Ma
%J Chinese Science Bulletin
%@ 1861-9541
%D 2009
%I 
%R 10.1007/s11434-009-0211-6
%X Type Ib diamonds were grown by the temperature gradient method (TGM) at 5.5 GPa and 1500¨C1560 K in a china-type cubic anvil high pressure apparatus using Ni70Mn25Co5 alloy as solvent/catalyst. The concentration of nitrogen (C N) in type Ib diamonds synthesized at different synthesis temperatures was measured by a Fourier transform infrared (FTIR) spectrometer. The dependence of C N in diamond on synthesis temperature was studied. For the type Ib diamonds synthesized using Ni70Mn25Co5 as catalyst, its C N decreases along with the increase of synthesis temperature.
%K nitrogen concentration
%K diamond
%K infrared spectrum
%K synthesis temperature
%U http://link.springer.com/article/10.1007/s11434-009-0211-6