The special features of the formation of molecular ions on the surface of tantalum

Thermal emission of singly charged positive molecular ions, mass 254, from the surface of a tantalum band was studied. Thermal emission appeared if, first, oxygen acted on a tantalum band at a temperature higher than 600°C, and then the band was held at room temperature. At the time of holding t lon...

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Published inRussian journal of physical chemistry. B Vol. 4; no. 3; pp. 521 - 525
Main Author Savchenko, O. Ya
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.06.2010
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Abstract Thermal emission of singly charged positive molecular ions, mass 254, from the surface of a tantalum band was studied. Thermal emission appeared if, first, oxygen acted on a tantalum band at a temperature higher than 600°C, and then the band was held at room temperature. At the time of holding t longer than a minute, thermal emission linearly depended on . The special features of thermal emission were explained by the presence of a critical temperature of tantalum close to 400°C, at which all the molecular ions were emitted from the surface. A new model of their formation was suggested.
AbstractList Thermal emission of singly charged positive molecular ions, mass 254, from the surface of a tantalum band was studied. Thermal emission appeared if, first, oxygen acted on a tantalum band at a temperature higher than 600°C, and then the band was held at room temperature. At the time of holding t longer than a minute, thermal emission linearly depended on . The special features of thermal emission were explained by the presence of a critical temperature of tantalum close to 400°C, at which all the molecular ions were emitted from the surface. A new model of their formation was suggested.
Author Savchenko, O. Ya
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Issue 3
Keywords Nichrome Wire
Tantalum
Relative Current
Thermal Emission
Current Amplitude
Language English
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References BatkinV. I.Zh. Tekh. Fiz.2000702106[Tech. Phys. 45, 247 (2000)]
BatkinV. I.BondarenkoA. V.SavchenkoO. Ya.Vestn. Novosib. Gos. Univ.2002319
BatkinV. I.SavchenkoO. Ya.Zh. Tekh. Fiz.200272591[Tech. Phys. 47, 604 (2002)]
MillerG. L.Niobium and Tantalum1959LondonButterworths
RaskatovV. M.Mechanical Engineering Reference Manual1967MoscowMashinostroenie
BatkinV. I.SavchenkoO. Ya.Khim. Fiz.2009281911:CAS:528:DC%2BD1MXivVykt74%3D[Russ. J. Phys. Chem. B 3, 162 (2009)]
(6235_CR4) 1967
V. I. Batkin (6235_CR2) 2000; 70
V. I. Batkin (6235_CR1) 2009; 28
G. L. Miller (6235_CR3) 1959
V. I. Batkin (6235_CR6) 2002; 3
V. I. Batkin (6235_CR5) 2002; 72
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  publication-title: Zh. Tekh. Fiz.
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    fullname: V. I. Batkin
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    fullname: G. L. Miller
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  publication-title: Zh. Tekh. Fiz.
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  year: 1967
  ident: 6235_CR4
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  start-page: 91
  issue: 1
  year: 2009
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  publication-title: Khim. Fiz.
  contributor:
    fullname: V. I. Batkin
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  start-page: 9
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Snippet Thermal emission of singly charged positive molecular ions, mass 254, from the surface of a tantalum band was studied. Thermal emission appeared if, first,...
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SubjectTerms Chemistry
Chemistry and Materials Science
Physical Chemistry
Surface Reactions
Title The special features of the formation of molecular ions on the surface of tantalum
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