| EPSRC Reference: |
GR/L82281/01 |
| Title: |
A STUDY OF MIXED GAS PLASMAS FOR MATERIALS PROCESSING |
| Principal Investigator: |
Blackman, Mr SA |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Industrial and Manufacturing Scie |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
30 October 1998 |
Ends: |
29 October 2001 |
Value (£): |
172,491
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Plasmas - Technological |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Plasmas comprising two or more chemical species are common in materials processing technologies such as welding, cutting, surfacing, waste destruction and chemical manufacture. The influence of material concentration levels on the behaviour and structure of such arcs is of considerable industrial interest. However, in the absence of detailed physical information, development has been based on trial and error methods, with observation of aggregate effects rather than a detailed understanding of the structural modifications within the plasma. This study will examine the influence of gas and metal vapour introduction on TIG welding arcs using spectroscopic and needle probe techniques, and will provide data on temperatures and particle densities and how these vary as a function of concentration. By comparing these different techniques, information will be derived concerning their validity and that of the underlying physical models upon which interpretation of the results is based. This is particularly pertinent with regard to the assumption local thermal equilibrium (LTE) which affects the applicability of the Saha equation; and charge capture behaviour, which is related to plasma - electrode interactions. It is anticipated that this research will provide a baseline for further near market and fundamental physical studies of these industrially relevant plasmas.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cranfield.ac.uk |