Reaction Mechanism of Al and N in Diamond Growth from a FeNiCo-C System
LI Shang-Sheng1, LI Xiao-Lei1, MA Hong-An2, SU Tai-Chao1, XIAO Hong-Yu3, HUANG Guo-Feng2, LI Yong2, ZHANG Yi-Shun1, JIA Xiao-Peng1,2**
1School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003 2State Key Lab of Superhard Materials, Jilin University, Changchun 130012 3Luoyang Institute of Science and Technology, Luoyang 471023
Reaction Mechanism of Al and N in Diamond Growth from a FeNiCo-C System
LI Shang-Sheng1, LI Xiao-Lei1, MA Hong-An2, SU Tai-Chao1, XIAO Hong-Yu3, HUANG Guo-Feng2, LI Yong2, ZHANG Yi-Shun1, JIA Xiao-Peng1,2**
1School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003 2State Key Lab of Superhard Materials, Jilin University, Changchun 130012 3Luoyang Institute of Science and Technology, Luoyang 471023
摘要It is significant to investigate the action of nitrogen getters, which are used to synthesize type-IIa large diamond single crystals under high pressure and high temperature (HPHT). The reaction mechanism of Al as a nitrogen getter and N in the HPHT alloy solvent is still indeterminate at present. In order to investigate the reaction of Al and N in the HPHT alloy solvent, Al and AlN are respectively added to the system of Fe55Ni29Co16−C (wt%, abbr. FeNiCo-C) for the synthesis of diamonds at about 5.5 GPa and 1600 K. The concentration of nitrogen in the diamonds is characterized by a micro Fourier transform infrared (micro-FTIR) spectrometer. The experimental results show that cN decreases when Al is added to the FeNiCo-C system. However, it increases when AlN is added. A reversible reaction confirms that Al and N can react and form AlN, simultaneously AlN can be decomposed into Al and N in the HPHT alloy solvent. Therefore the mechanism of eliminating the nitrogen of nitrogen getter Al is realized in detail.
Abstract：It is significant to investigate the action of nitrogen getters, which are used to synthesize type-IIa large diamond single crystals under high pressure and high temperature (HPHT). The reaction mechanism of Al as a nitrogen getter and N in the HPHT alloy solvent is still indeterminate at present. In order to investigate the reaction of Al and N in the HPHT alloy solvent, Al and AlN are respectively added to the system of Fe55Ni29Co16−C (wt%, abbr. FeNiCo-C) for the synthesis of diamonds at about 5.5 GPa and 1600 K. The concentration of nitrogen in the diamonds is characterized by a micro Fourier transform infrared (micro-FTIR) spectrometer. The experimental results show that cN decreases when Al is added to the FeNiCo-C system. However, it increases when AlN is added. A reversible reaction confirms that Al and N can react and form AlN, simultaneously AlN can be decomposed into Al and N in the HPHT alloy solvent. Therefore the mechanism of eliminating the nitrogen of nitrogen getter Al is realized in detail.
(Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
引用本文:
LI Shang-Sheng;LI Xiao-Lei;MA Hong-An;SU Tai-Chao;XIAO Hong-Yu;HUANG Guo-Feng;LI Yong;ZHANG Yi-Shun;JIA Xiao-Peng;**
. Reaction Mechanism of Al and N in Diamond Growth from a FeNiCo-C System[J]. 中国物理快报, 2011, 28(6): 68101-068101.
LI Shang-Sheng, LI Xiao-Lei, MA Hong-An, SU Tai-Chao, XIAO Hong-Yu, HUANG Guo-Feng, LI Yong, ZHANG Yi-Shun, JIA Xiao-Peng, **
. Reaction Mechanism of Al and N in Diamond Growth from a FeNiCo-C System. Chin. Phys. Lett., 2011, 28(6): 68101-068101.
[1] Wentorf Jr R 1971 J. Phys. Chem. 75 1833
[2] Strong H and Chrenko R 1971 J. Phys. Chem. 75 1838
[3] Sumiya H and Satoh S 1996 Diamond Relat. Mater. 5 1359
[4] Sumiya H, Toda N and Satoh S 2002 J. Crystal Growth 237-239 1281
[5] Wang X C, Ma H A, Zang C Y, Tian Y, Li S S and Jia X P 2005 Chin. Phys. Lett. 22 1800
[6] Li S, Jia X, Zang C, Tian Y, Zhang Y, Xiao H, Huang F, Ma L, Li Y, Li X and Ma H 2008 Chin. Phys. Lett. 25 3801
[7] Strong H and Hanneman R 1967 J. Chem. Phys. 46 3668
[8] Zang C, Jia X, Ma H, Tian Y and Xiao H 2005 Chin. Phys. Lett. 22 2415
[9] Weast R 1977–1978 CRC Handbook of Chemistry and Physics 58th edn (Boca Raton, Florida: CRC Press) D85
[10] Li X, Ma H, Zuo G, Liu W, Zheng Y, Li J, Li S and Jia X, 2007 Scripta Mater. 56 1015
[11] Zhang Y, Zang C, Ma H, Liang Z, Zhou L, Li S and Jia X 2008 Diamond Relat. Mater. 17 209
[12] Woods W, Van Wyk J and Collins A 1990 Phil. Mag. B 62 589
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