THE NUMERICAL-SIMULATION OF DIAMOND SYNTHESIS FROM ACETYLENE FLAMES

被引:27
作者
MATSUI, Y
YABE, H
HIROSE, Y
机构
[1] MITSUBISHI ELECTR CORP,CENT RES LAB,AMAGASAKI,HYOGO 661,JAPAN
[2] NIPPON INST TECHNOL,DEPT ELECT ENGN & ELECTR,MINAMI SAITAMA,SAITAMA 345,JAPAN
关键词
D O I
10.1016/0925-9635(93)90135-O
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The mechanism of diamond growth from an oxy-acetylene flame is discussed using a numerical simulation which includes both gaseous reactions in the low-temperature boundary layer near the substrate and detailed surface reactions on the growing film. It is found from these simulations that the CH3-precursor model is sufficient to explain the growth rate for wide ranges in the substrate temperature T(s) and the gas mixture ratio, and that the fractional density of the surface adsorbing bond (the overall sticking probability) is about 10(-3) at T(s) = 1250 K. It is also shown that the growth rates for other deposition methods are satisfactorily explained by the present model.
引用
收藏
页码:7 / 13
页数:7
相关论文
共 24 条
[1]   REACTIONS OF MODULATED MOLECULAR-BEAMS WITH PYROLYTIC-GRAPHITE .3. HYDROGEN [J].
BALOOCH, M ;
OLANDER, DR .
JOURNAL OF CHEMICAL PHYSICS, 1975, 63 (11) :4772-4786
[2]   ROLE OF HEAT-TRANSFER AND FLUID-FLOW IN THE CHEMICAL VAPOR-DEPOSITION OF DIAMOND [J].
DEBROY, T ;
TANKALA, K ;
YARBROUGH, WA ;
MESSIER, R .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (05) :2424-2432
[3]   GROWTH-MECHANISM OF VAPOR-DEPOSITED DIAMOND [J].
FRENKLACH, M ;
SPEAR, KE .
JOURNAL OF MATERIALS RESEARCH, 1988, 3 (01) :133-140
[4]   NUMERICAL MODELING OF THE FILAMENT-ASSISTED DIAMOND GROWTH ENVIRONMENT [J].
GOODWIN, DG ;
GAVILLET, GG .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (12) :6393-6400
[5]   SIMULATIONS OF HIGH-RATE DIAMOND SYNTHESIS - METHYL AS GROWTH SPECIES [J].
GOODWIN, DG .
APPLIED PHYSICS LETTERS, 1991, 59 (03) :277-279
[6]  
GOODWIN DG, 1989, TECHNOLOGY UPDATE DI, P153
[7]   KINETICS OF CH4 FORMATION FROM REACTION OF H WITH GRAPHITE [J].
GOULD, RK .
JOURNAL OF CHEMICAL PHYSICS, 1975, 63 (05) :1825-1836
[8]   METHYL RADICAL AND H-ATOM CONCENTRATIONS DURING DIAMOND GROWTH [J].
HARRIS, SJ ;
WEINER, AM .
JOURNAL OF APPLIED PHYSICS, 1990, 67 (10) :6520-6526
[9]  
HIROSE Y, 1988, 35 SPRING M JAP SOC, P343
[10]  
HIROSE Y, 1989, SPR M EL SOC LOS ANG, P114