Glow discharge -optical emission spectroscopy of different plasma
gases such as H2, N2, N2-H2 and Ar-N2 generated by a cost effective
50 Hz pulsed-DC electrical power source is carried out to
investigate the different excitation and ionization processes
involved in the production of active species, for surface nitriding
of materials. Spectroscopic study of hydrogen Balmer - line
profiles are performed in an abnormal glow region of hydrogen
plasma for investigating the dependencies of their line shapes and
intensities on discharge parameters. A technique based on
determining the relative intensities of neutral atomic hydrogen
emission lines is used to evaluate the electron temperature whereas
the electron density is extracted from Stark broadening ( FWHM ) of
the H-beta emission profile . The plasma parameters are found to be
strongly dependent on discharge conditions. The effect of inert
gases such as Ar, He, etc on the production of active species is
also investigated under different discharge conditions. The
metastable states of these gases are found to be useful for
enhancing the concentration of active species.
General
| Imprint: |
VDM Verlag
|
| Country of origin: |
Germany |
| Release date: |
July 2010 |
| First published: |
July 2010 |
| Authors: |
Abdul Qayyum
|
| Dimensions: |
229 x 152 x 9mm (L x W x T) |
| Format: |
Paperback - Trade
|
| Pages: |
160 |
| ISBN-13: |
978-3-639-27241-3 |
| Categories: |
Books >
Science & Mathematics >
Physics >
General
|
| LSN: |
3-639-27241-2 |
| Barcode: |
9783639272413 |
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