Analysis of a Thermal Plasma Diamond CVD System
This paper deals with the analysis of a typical engineering system utilizing thermal plasma - a system for Diamond Chemical Vapor Deposition. It defines the system - a slightly overexpanded plasma jet impinging at a downstream -located substrate, outlines the theoretical description of the system -...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
CTU Central Library
2001-01-01
|
Series: | Acta Polytechnica |
Subjects: | |
Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/250 |
Summary: | This paper deals with the analysis of a typical engineering system utilizing thermal plasma - a system for Diamond Chemical Vapor Deposition. It defines the system - a slightly overexpanded plasma jet impinging at a downstream -located substrate, outlines the theoretical description of the system - the Navier-Stokes and species conservation equations, and presents key theoretical results on the major and most troublesome factors influencing diamond deposition - velocity and temperature of the jet. Then, the paper demostrates the necessity to shift from a laminar to a turbulent flow description and compares both results to experiments. An explanation of the remaining discrepancy - insufficient velocity drop in the jet - is attempted. |
---|---|
ISSN: | 1210-2709 1805-2363 |