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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2016-11-3-74-81</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-32</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY AND TECHNOLOGY OF INORGANIC MATERIALS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ НЕОРГАНИЧЕСКИХ МАТЕРИАЛОВ</subject></subj-group></article-categories><title-group><article-title>Perspective nickel-oxide cathodes technologies for centimetric range microwave devices</article-title><trans-title-group xml:lang="ru"><trans-title>Перспективные технологии оксидно-никелевых катодов СВЧ-приборов сантиметрового диапазона длин волн</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Леденцова</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Ledentsova</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ведущий инженер-технолог</p><p>Москва, 105120 Россия</p></bio><bio xml:lang="en"><p>Moscow, 105120 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ли</surname><given-names>И. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Li</surname><given-names>I. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>заместитель директора по технической политике</p><p> </p></bio><bio xml:lang="en"><p>Moscow, 105120 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер-технолог</p><p> </p></bio><bio xml:lang="en"><p>Moscow, 105120 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Капустин</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kapustin</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>профессор</p><p>Москва, 119454 Россия</p></bio><bio xml:lang="en"><p>Moscow, 119454 Russia</p></bio><email xlink:type="simple">kapustin@mirea.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ОАО «Плутон»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC "Pluton"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский технологический университет (МИРЭА)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technological University (MIREA)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2016</year></pub-date><volume>11</volume><issue>3</issue><fpage>74</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ledentsova N.E., Li I.P., Petrov V.S., Kapustin V.I., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Леденцова Н.Е., Ли И.П., Петров В.С., Капустин В.И.</copyright-holder><copyright-holder xml:lang="en">Ledentsova N.E., Li I.P., Petrov V.S., Kapustin V.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.finechem-mirea.ru/jour/article/view/32">https://www.finechem-mirea.ru/jour/article/view/32</self-uri><abstract><p>Three technologies of nickel-oxide cathodes based on nickel powder and on barium-calciumstrontium triple carbonate powder for microwave ovens of the centimetric wave length range devices are suggested. The optimum fraction of nickel powder for the production of cathodes is 45-71 microns. The optimum content of the triple carbonate is 10%. The optimum pressure of pressing is 7 t/cm2. The optimum temperature of agglomeration is 1100°C for 10 min. The quality improvement and yield of suitable cathodes are provided by the use of agglomerates of nickel and triple carbonates. The agglomerates contain nickel particles of the 10-25 microns fraction coated with the triple carbonate containing 50% of the carbonate and baked in dried hydrogen at 1000°C for 10 min. The formation of the cathode is carried out by mixing and agglomerating the 45-63 microns fraction and the nickel 45-71 microns fraction with the carbonates concentration 10%. In order to improve the cathodes quality it is expedient to anneal the agglomerates after their production in carbon dioxide at 200-300°C with a final purge by nitrogen at 1000°C for 10 minutes. The use of agglomerates based on nickel and the triple carbonate for the production of oxide-nickel cathodes provides more uniform distribution of the emission-active agent in the volume and on the surface of the cathodes.</p></abstract><trans-abstract xml:lang="ru"><p>Проведен анализ физико-химических процессов, протекающих в оксидно-никелевых катодных материалах, на основе которого разработаны три технологии изготовления таких катодов для электровакуумных СВЧ-приборов сантиметрового диапазона длин волн. Первая технология основана на классических методах порошковой металлургии, вторая предусматривает предварительное формирование агломератов на основе порошка никеля и тройных карбонатов бария-кальция-стронция, третья - формирование агломератов и их отжиг в среде углекислого газа для предотвращения образования гидроксидов бария-кальция-стронция, ухудшающих эмиссионные свойства катода.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>термоэлектронная эмиссия</kwd><kwd>оксидные катоды</kwd><kwd>оксидно-никелевые катоды</kwd><kwd>технологии катодных материалов</kwd><kwd>порошковые технологии</kwd><kwd>катоды СВЧ-приборов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thermionic issue</kwd><kwd>oxide cathodes</kwd><kwd>oxide-nickel cathodes</kwd><kwd>technologies of cathode materials</kwd><kwd>powder technologies</kwd><kwd>microwave ovens cathodes of devices</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Дюбуа Б.Ч., Поливникова О.В. // Электронная техника. 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