caa a22 4500 463211979 CHVBK 20180405153144.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s00339-007-3934-8 doi (NATIONALLICENCE)springer-10.1007/s00339-007-3934-8 Position dependence of growth rate in convection enhanced laser CVD of carbon rods [Elektronische Daten] [R. Goduguchinta, J. Pegna] The ability to closely monitor LCVD rod growth in the growth region is demonstrated in the context of the first open-air axial convection enhanced micro-reactor. It was used to monitor carbon rod growth inside coaxial cylindrical flows of ethylene and argon. Monitoring and subsequent image analysis of the 656nm atomic hydrogen emission from ethylene pyrolysis allowed real-time in-situ determination of axial growth rate and diameter along the axis of the produced carbon rods for the first time. Growth rates appear to vary greatly inside the growth region. This experiment raises questions about published qualitative models of LCVD rod growth that favor a uniform steady state regime. If the trend demonstrated in our experiments is not just an artifact of flow mixing, then it would indicate that published registered growth rates may just be an average value or an artifact of focus tracking. The results, therefore, point the way to experiments that would allow discrimination between the effect of flow mixing and the true nature of LCVD rod growth in the growth region. Springer-Verlag, 2007 Goduguchinta R. Freeform Fabrication Laboratories, École Polytechnique de Montréal, Pavillon J.-Armand Bombardier, 2900 Édouard Montpetit, Box 34, H3T 1J4, Montréal, Québec, Canada aut Pegna J. Freeform Fabrication Laboratories, École Polytechnique de Montréal, Pavillon J.-Armand Bombardier, 2900 Édouard Montpetit, Box 34, H3T 1J4, Montréal, Québec, Canada aut Applied Physics A Springer-Verlag 88/2(2007-08-01), 329-332 0947-8396 88:2<329 2007 88 339 https://doi.org/10.1007/s00339-007-3934-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-3934-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goduguchinta R. Freeform Fabrication Laboratories, École Polytechnique de Montréal, Pavillon J.-Armand Bombardier, 2900 Édouard Montpetit, Box 34, H3T 1J4, Montréal, Québec, Canada aut NATIONALLICENCE 700 1- Pegna J. Freeform Fabrication Laboratories, École Polytechnique de Montréal, Pavillon J.-Armand Bombardier, 2900 Édouard Montpetit, Box 34, H3T 1J4, Montréal, Québec, Canada aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 88/2(2007-08-01), 329-332 0947-8396 88:2<329 2007 88 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer