PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE
The article provides characteristics of dispenser cathodes with admixture of nanocarbon particles, i.e. sulfoadduct of carbon nanoclusters (Ugleron®), into active material and polyhedral multilayer carbon nanostructures of the fulleroid type and toroidal shape (Astralenes®) into tungsten...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | Russian |
| Published: |
Saint Petersburg Electrotechnical University "LETI"
2018-08-01
|
| Series: | Известия высших учебных заведений России: Радиоэлектроника |
| Subjects: | |
| Online Access: | https://re.eltech.ru/jour/article/view/249 |
| _version_ | 1797874533203443712 |
|---|---|
| author | T. M. Krachkovskaya A. V. Storublev G. V. Sakhadji A. N. Emelyanov |
| author_facet | T. M. Krachkovskaya A. V. Storublev G. V. Sakhadji A. N. Emelyanov |
| author_sort | T. M. Krachkovskaya |
| collection | DOAJ |
| description | The article provides characteristics of dispenser cathodes with admixture of nanocarbon particles, i.e. sulfoadduct of carbon nanoclusters (Ugleron®), into active material and polyhedral multilayer carbon nanostructures of the fulleroid type and toroidal shape (Astralenes®) into tungsten matrix. The emitters are considered as electron sources for modern microwave devices, in particular travelling wave tube. The results of their accelerated life tests. Emission capacity measurement results are provided. A comparative x-ray analysis of modified and typical cathode emitting surfaces and respective anodes is presented. The morphology features of DC metal matrix with admixture of carbon nanoparticles are mentioned. Moreover, resistance of nanocarbon modified cathodes to operation under insufficient vacuum conditions is investigated.It is concluded that the further study of nanocarbon modi-fied thermal cathode parameters, e.g. electron work function and active substance evaporation rate with Ugleron®, is reasonable. Recommendations on further improvement of dispenser cathodes manufacturing technology with admixture of nanocarbonic particles. |
| first_indexed | 2024-04-10T01:33:39Z |
| format | Article |
| id | doaj.art-58d1b26e2bed4aff950c8a998d71a760 |
| institution | Directory Open Access Journal |
| issn | 1993-8985 2658-4794 |
| language | Russian |
| last_indexed | 2024-04-10T01:33:39Z |
| publishDate | 2018-08-01 |
| publisher | Saint Petersburg Electrotechnical University "LETI" |
| record_format | Article |
| series | Известия высших учебных заведений России: Радиоэлектроника |
| spelling | doaj.art-58d1b26e2bed4aff950c8a998d71a7602023-03-13T09:20:22ZrusSaint Petersburg Electrotechnical University "LETI"Известия высших учебных заведений России: Радиоэлектроника1993-89852658-47942018-08-0104576310.32603/1993-8985-2018-21-4-57-63241PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODET. M. Krachkovskaya0A. V. Storublev1G. V. Sakhadji2A. N. Emelyanov3АО «НПП "Алмаз"»АО «НПП "Алмаз"»АО «НПП "Алмаз"»АО «НПП "Алмаз"»The article provides characteristics of dispenser cathodes with admixture of nanocarbon particles, i.e. sulfoadduct of carbon nanoclusters (Ugleron®), into active material and polyhedral multilayer carbon nanostructures of the fulleroid type and toroidal shape (Astralenes®) into tungsten matrix. The emitters are considered as electron sources for modern microwave devices, in particular travelling wave tube. The results of their accelerated life tests. Emission capacity measurement results are provided. A comparative x-ray analysis of modified and typical cathode emitting surfaces and respective anodes is presented. The morphology features of DC metal matrix with admixture of carbon nanoparticles are mentioned. Moreover, resistance of nanocarbon modified cathodes to operation under insufficient vacuum conditions is investigated.It is concluded that the further study of nanocarbon modi-fied thermal cathode parameters, e.g. electron work function and active substance evaporation rate with Ugleron®, is reasonable. Recommendations on further improvement of dispenser cathodes manufacturing technology with admixture of nanocarbonic particles.https://re.eltech.ru/jour/article/view/249наноуглеродметаллопористый катодастралены®углерон®эмиссиядолговечность |
| spellingShingle | T. M. Krachkovskaya A. V. Storublev G. V. Sakhadji A. N. Emelyanov PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE Известия высших учебных заведений России: Радиоэлектроника наноуглерод металлопористый катод астралены® углерон® эмиссия долговечность |
| title | PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE |
| title_full | PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE |
| title_fullStr | PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE |
| title_full_unstemmed | PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE |
| title_short | PERFORMANCE INVESTIGATION FOR NANOCARBON MODIFIED DISPENSER CATHODE |
| title_sort | performance investigation for nanocarbon modified dispenser cathode |
| topic | наноуглерод металлопористый катод астралены® углерон® эмиссия долговечность |
| url | https://re.eltech.ru/jour/article/view/249 |
| work_keys_str_mv | AT tmkrachkovskaya performanceinvestigationfornanocarbonmodifieddispensercathode AT avstorublev performanceinvestigationfornanocarbonmodifieddispensercathode AT gvsakhadji performanceinvestigationfornanocarbonmodifieddispensercathode AT anemelyanov performanceinvestigationfornanocarbonmodifieddispensercathode |