Monitoring oxygen species in diamond hot-filament CVD by zircon dioxide sensors

Journal article


Publication Details

Author(s): Hirmke J, Rosiwal S, Singer R
Journal: Vacuum
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication year: 2008
Volume: 82
Journal issue: 6
Pages range: 599-607
ISSN: 0042-207X
Language: English


Abstract


Electrochemical zircon dioxide oxygen sensors were applied to measure oxygen in diamond hot-filament CVD (HFCVD) coating atmospheres. These low-pressure hydrogen environments are highly reductive and methane containing. Under industrial coating conditions there is the possibility that oxygen from ambient air enters the reactor by leakages. This leads to a tremendous influence on coating conditions by lowering the active carbon content in the gas phase and by decarburizing the gas activating filaments in HFCVD. In order to ensure process stability, a monitoring of an oxygen-related value is desired. This Work displays the possibility to measure oxygen in HFCVD with potentiometric and amperometric ZrO2 sensors. The dependency of the sensor signals on process parameters is investigated and the possibility of monitoring an oxygen-related value during a coating process is shown. The sensor signals allow a comparison of plants and processes regarding the seal tightness condition. The employed zircon dioxide sensors offer a cost effective and feasible method to monitor air leakage and ensure process reproducibility. (c) 2007 Elsevier Ltd. All rights reserved.



FAU Authors / FAU Editors

Rosiwal, Stefan PD Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Singer, Robert Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


How to cite

APA:
Hirmke, J., Rosiwal, S., & Singer, R. (2008). Monitoring oxygen species in diamond hot-filament CVD by zircon dioxide sensors. Vacuum, 82(6), 599-607. https://dx.doi.org/10.1016/j.vacuum.2007.09.002

MLA:
Hirmke, Joachim, Stefan Rosiwal, and Robert Singer. "Monitoring oxygen species in diamond hot-filament CVD by zircon dioxide sensors." Vacuum 82.6 (2008): 599-607.

BibTeX: 

Last updated on 2018-09-08 at 23:23