High pressure mercury AC discharge tube exposed to coherent laser: optical, electrical and thermal aspects
Most optical emission line intensities remain unchanged for a mercury HID plasma, exposed to coherent argon ion laser beam Innova 308 C (476.5 nm) in points far from electrodes. Small raise of Hg-546.08 nm line is due to photo-excitation of Ar + ions, followed by excitation transfers through collisi...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2023-10, Vol.148 (20), p.10515-10529 |
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| creator | Harabor, Novac-Adrian Harabor, Ana Rotaru, Petre Palarie, Ion |
| description | Most optical emission line intensities remain unchanged for a mercury HID plasma, exposed to coherent argon ion laser beam Innova 308 C (476.5 nm) in points far from electrodes. Small raise of Hg-546.08 nm line is due to photo-excitation of Ar
+
ions, followed by excitation transfers through collision processes from excited (Ar
+
)
*
ions to Ar atoms, then from excited (Ar)
*
to Hg atoms. When the laser beam hits the electrode tip (photoelectric effect), the amount of electrons involved in plasma collisions increases: all characteristic emission spectral lines are intensifying. Electron temperature and concentration were also calculated. Differential Scanning Calorimetry performed in case of tungsten electrode with emissive material (Y
2
O
3
, BaCO
3
, CaCO
3
, WO
3
), linear and non-isothermally heated (0.17 K s
-1
) in flowing air, from 290.61 to 1603.72 K (platinum crucible), revealed both endothermic (CaCO
3
and of BaCO
3
decompositions) and exothermal (obtaining CaWO
4
, BaWO
4
and Ba
3
WO
6
) processes. Thermogravimetry Analysis showed a mass decrease of 0.498%, in 290.61−505.15 K temperature range, due to water release. Oxidation of tungsten electrode causes a significant mass increase of 17.292% in 809.15−1183.15 K range. BaWO
4
, Ba
3
WO
6
and WO
3
sublimations gave a mass fall of 6.757% in 1513.15−1603.72 K range. No thermal effects were recorded on heating in argon atmosphere, from 446.15 to 1596.15 K, in alumina crucible. |
| doi_str_mv | 10.1007/s10973-023-12380-1 |
| format | Article |
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+
ions, followed by excitation transfers through collision processes from excited (Ar
+
)
*
ions to Ar atoms, then from excited (Ar)
*
to Hg atoms. When the laser beam hits the electrode tip (photoelectric effect), the amount of electrons involved in plasma collisions increases: all characteristic emission spectral lines are intensifying. Electron temperature and concentration were also calculated. Differential Scanning Calorimetry performed in case of tungsten electrode with emissive material (Y
2
O
3
, BaCO
3
, CaCO
3
, WO
3
), linear and non-isothermally heated (0.17 K s
-1
) in flowing air, from 290.61 to 1603.72 K (platinum crucible), revealed both endothermic (CaCO
3
and of BaCO
3
decompositions) and exothermal (obtaining CaWO
4
, BaWO
4
and Ba
3
WO
6
) processes. Thermogravimetry Analysis showed a mass decrease of 0.498%, in 290.61−505.15 K temperature range, due to water release. Oxidation of tungsten electrode causes a significant mass increase of 17.292% in 809.15−1183.15 K range. BaWO
4
, Ba
3
WO
6
and WO
3
sublimations gave a mass fall of 6.757% in 1513.15−1603.72 K range. No thermal effects were recorded on heating in argon atmosphere, from 446.15 to 1596.15 K, in alumina crucible.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-023-12380-1</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Aluminum compounds ; Analytical Chemistry ; Argon ions ; Calcium carbonate ; Calorimetry ; Chemistry ; Chemistry and Materials Science ; Collisions (Nuclear physics) ; Crucibles ; Electrodes ; Electron energy ; Emission ; Excitation ; Gas discharge tubes ; Inorganic Chemistry ; Laser beams ; Lasers ; Line spectra ; Measurement Science and Instrumentation ; Oxidation ; Photoelectric effect ; Photoelectricity ; Physical Chemistry ; Polymer Sciences ; Scheelite ; Temperature effects ; Thermogravimetry ; Tungsten oxides ; Yttrium oxide</subject><ispartof>Journal of thermal analysis and calorimetry, 2023-10, Vol.148 (20), p.10515-10529</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>COPYRIGHT 2023 Springer</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c343t-88048381728e100c5f31740e9e127d0af4e0824bb19b6538b7f79f6c02a142893</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-023-12380-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-023-12380-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,781,785,27929,27930,41493,42562,51324</link.rule.ids></links><search><creatorcontrib>Harabor, Novac-Adrian</creatorcontrib><creatorcontrib>Harabor, Ana</creatorcontrib><creatorcontrib>Rotaru, Petre</creatorcontrib><creatorcontrib>Palarie, Ion</creatorcontrib><title>High pressure mercury AC discharge tube exposed to coherent laser: optical, electrical and thermal aspects</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>Most optical emission line intensities remain unchanged for a mercury HID plasma, exposed to coherent argon ion laser beam Innova 308 C (476.5 nm) in points far from electrodes. Small raise of Hg-546.08 nm line is due to photo-excitation of Ar
+
ions, followed by excitation transfers through collision processes from excited (Ar
+
)
*
ions to Ar atoms, then from excited (Ar)
*
to Hg atoms. When the laser beam hits the electrode tip (photoelectric effect), the amount of electrons involved in plasma collisions increases: all characteristic emission spectral lines are intensifying. Electron temperature and concentration were also calculated. Differential Scanning Calorimetry performed in case of tungsten electrode with emissive material (Y
2
O
3
, BaCO
3
, CaCO
3
, WO
3
), linear and non-isothermally heated (0.17 K s
-1
) in flowing air, from 290.61 to 1603.72 K (platinum crucible), revealed both endothermic (CaCO
3
and of BaCO
3
decompositions) and exothermal (obtaining CaWO
4
, BaWO
4
and Ba
3
WO
6
) processes. Thermogravimetry Analysis showed a mass decrease of 0.498%, in 290.61−505.15 K temperature range, due to water release. Oxidation of tungsten electrode causes a significant mass increase of 17.292% in 809.15−1183.15 K range. BaWO
4
, Ba
3
WO
6
and WO
3
sublimations gave a mass fall of 6.757% in 1513.15−1603.72 K range. No thermal effects were recorded on heating in argon atmosphere, from 446.15 to 1596.15 K, in alumina crucible.</description><subject>Aluminum compounds</subject><subject>Analytical Chemistry</subject><subject>Argon ions</subject><subject>Calcium carbonate</subject><subject>Calorimetry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Collisions (Nuclear physics)</subject><subject>Crucibles</subject><subject>Electrodes</subject><subject>Electron energy</subject><subject>Emission</subject><subject>Excitation</subject><subject>Gas discharge tubes</subject><subject>Inorganic Chemistry</subject><subject>Laser beams</subject><subject>Lasers</subject><subject>Line spectra</subject><subject>Measurement Science and Instrumentation</subject><subject>Oxidation</subject><subject>Photoelectric effect</subject><subject>Photoelectricity</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Scheelite</subject><subject>Temperature effects</subject><subject>Thermogravimetry</subject><subject>Tungsten oxides</subject><subject>Yttrium oxide</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kUFr3DAQhU1pIGnSP5CToKdCnY4kryX3tixps7AQSNKzkLVjrxev5Wpk2P331daBkEuZwzyG781IvCy75XDHAdR34lApmYOQORdSQ84_ZFd8oXUuKlF-TFomXfIFXGafiPYAUFXAr7L9Q9fu2BiQaArIDhjcFE5suWLbjtzOhhZZnGpkeBw94ZZFz5zfYcAhst4Shh_Mj7Fztv_GsEcXw1kzOyQ0YYezpjHN6Sa7aGxP-Pm1X2e_f96_rB7yzeOv9Wq5yZ0sZMy1hkJLzZXQmP7mFo3kqgCskAu1BdsUCFoUdc2rulxIXatGVU3pQFheCF3J6-zLvHcM_s-EFM3eT2FIJ43QCpQolBKJupup1vZouqHxMViXaouHzvkBmy7Nl6pUkuu0NRm-vjMkJuIxtnYiMuvnp_esmFkXPFHAxoyhO9hwMhzMOTAzB2ZSYOZfYIYnk5xNlOChxfD27v-4_gKsPJbD</recordid><startdate>20231001</startdate><enddate>20231001</enddate><creator>Harabor, Novac-Adrian</creator><creator>Harabor, Ana</creator><creator>Rotaru, Petre</creator><creator>Palarie, Ion</creator><general>Springer International Publishing</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope></search><sort><creationdate>20231001</creationdate><title>High pressure mercury AC discharge tube exposed to coherent laser: optical, electrical and thermal aspects</title><author>Harabor, Novac-Adrian ; Harabor, Ana ; Rotaru, Petre ; Palarie, Ion</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-88048381728e100c5f31740e9e127d0af4e0824bb19b6538b7f79f6c02a142893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Aluminum compounds</topic><topic>Analytical Chemistry</topic><topic>Argon ions</topic><topic>Calcium carbonate</topic><topic>Calorimetry</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Collisions (Nuclear physics)</topic><topic>Crucibles</topic><topic>Electrodes</topic><topic>Electron energy</topic><topic>Emission</topic><topic>Excitation</topic><topic>Gas discharge tubes</topic><topic>Inorganic Chemistry</topic><topic>Laser beams</topic><topic>Lasers</topic><topic>Line spectra</topic><topic>Measurement Science and Instrumentation</topic><topic>Oxidation</topic><topic>Photoelectric effect</topic><topic>Photoelectricity</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Scheelite</topic><topic>Temperature effects</topic><topic>Thermogravimetry</topic><topic>Tungsten oxides</topic><topic>Yttrium oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Harabor, Novac-Adrian</creatorcontrib><creatorcontrib>Harabor, Ana</creatorcontrib><creatorcontrib>Rotaru, Petre</creatorcontrib><creatorcontrib>Palarie, Ion</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Harabor, Novac-Adrian</au><au>Harabor, Ana</au><au>Rotaru, Petre</au><au>Palarie, Ion</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High pressure mercury AC discharge tube exposed to coherent laser: optical, electrical and thermal aspects</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2023-10-01</date><risdate>2023</risdate><volume>148</volume><issue>20</issue><spage>10515</spage><epage>10529</epage><pages>10515-10529</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>Most optical emission line intensities remain unchanged for a mercury HID plasma, exposed to coherent argon ion laser beam Innova 308 C (476.5 nm) in points far from electrodes. Small raise of Hg-546.08 nm line is due to photo-excitation of Ar
+
ions, followed by excitation transfers through collision processes from excited (Ar
+
)
*
ions to Ar atoms, then from excited (Ar)
*
to Hg atoms. When the laser beam hits the electrode tip (photoelectric effect), the amount of electrons involved in plasma collisions increases: all characteristic emission spectral lines are intensifying. Electron temperature and concentration were also calculated. Differential Scanning Calorimetry performed in case of tungsten electrode with emissive material (Y
2
O
3
, BaCO
3
, CaCO
3
, WO
3
), linear and non-isothermally heated (0.17 K s
-1
) in flowing air, from 290.61 to 1603.72 K (platinum crucible), revealed both endothermic (CaCO
3
and of BaCO
3
decompositions) and exothermal (obtaining CaWO
4
, BaWO
4
and Ba
3
WO
6
) processes. Thermogravimetry Analysis showed a mass decrease of 0.498%, in 290.61−505.15 K temperature range, due to water release. Oxidation of tungsten electrode causes a significant mass increase of 17.292% in 809.15−1183.15 K range. BaWO
4
, Ba
3
WO
6
and WO
3
sublimations gave a mass fall of 6.757% in 1513.15−1603.72 K range. No thermal effects were recorded on heating in argon atmosphere, from 446.15 to 1596.15 K, in alumina crucible.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10973-023-12380-1</doi><tpages>15</tpages></addata></record> |
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| source | Springer Online Journals Complete |
| subjects | Aluminum compounds Analytical Chemistry Argon ions Calcium carbonate Calorimetry Chemistry Chemistry and Materials Science Collisions (Nuclear physics) Crucibles Electrodes Electron energy Emission Excitation Gas discharge tubes Inorganic Chemistry Laser beams Lasers Line spectra Measurement Science and Instrumentation Oxidation Photoelectric effect Photoelectricity Physical Chemistry Polymer Sciences Scheelite Temperature effects Thermogravimetry Tungsten oxides Yttrium oxide |
| title | High pressure mercury AC discharge tube exposed to coherent laser: optical, electrical and thermal aspects |
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