Purification of hafnium from oxygen and nitrogen
Keywords:
hafnium, reactor, refining, impurities, properti
Abstract
Data on the influence content of interstitial impurities on the mechanical properties of hafnium are presented in this work. Investigations the purification of hafnium from oxygen at added of aluminum on the melting reduction stage with subsequent refining electron beam melting were performed. It is shown that vacuum thermal treatment of hafnium tetrafluoride before carrying out melting reduction reduces the nitrogen content in hafnium less than 0.005 wt.%.
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References
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Ponomarenko V.B., Poslavsky A.O., Chernyshov V.M. and others. Regulators and BAR of nuclear reactors WWER-1000 and ways of their improvement//Problems of atomic science and technology. − 1994. − Issue 2(62) 3(63). − P. 95-113.
Ryahnovsky V.M., Shmelev S.V., Chernyshov V.M., Scheglov A.V. Present state of development and production of the nuclear reactors WWER-1000 regulators//Problems of atomic science and technology. − 1997. − Issue 1, 2. − P. 110-119.
Tihonov L.V., Kononenko V.A., Prokopenko G.I., Rafalovsky V.A. Structure and properties of metals and alloys. Mechanical properties of metals and alloys. − K.: Naukova Dumka, 1986. − 568 p.
Risovany V.D., Klochkov E.P., Kosenkov V.M., Ostrovsky Z.E. Structural damages of the metal hafnium at reactor irradiation//Radioactive Materials Science: Proceedings of the International Conference. − Kharkov. − 1990. − T. 8. − P. 118-124.
Afanasyev A.A., Konotop Yu.F., Odeychuk N.P. Hafnium is a promising absorber for absorbing elements of CPS WWER-1000 rectors of nuclear power plant Ukraine//Problems of atomic science and technology. − 2000. − № 4. − P. 80-85.
Risovany V.D., Varlashova E.E., Zaharov A.V. The absorbing materials based on dysprosium and hafnium for pressurized water reactors//Proceedings of the RIAR. − Dimitrovgrad: SSC SRIAR. − 2000. − Issue 2. − P. 49-62.
Shatalov V.V., Fedorov V.D., Kotsar M.L. and others. Extraction calcium thermal technology of obtaining hafnium//Problems of atomic science and technology. − 1999. − № 2. − P. 9-13.
Pylypenko M.M. Physical and technological basis of the zirconium materials and hafnium creation technology for the cores of nuclear power plants. – Diss. Doct. Tech. Sciences: 01.04.07. – Kharkov, 2012. – 313 p.
Azhazha V.M., Vjugov P.N., Lavrinenko S.D., Pylypenko M.M., Muhachev A.P., Lindt K.A., Lakhov A.M., Popov V.I. Investigation of the refining process of calcium thermal hafnium with the introduction of additives//Problems of zirconium and hafnium in the nuclear industry: proceedings of the international conference. − Alushta. − 1999. − P. 38-40.
Dmitrenko A.E., Pelykh V.N., Pylypenko M.M. Refining of hafnium by electron-beam melting// Problems of atomic science and technology. − 2004. − № 3. − P. 112-115.
Kotsar M.L., Azhazha V.M., Borisov M.I. and others. The obtaining of pure zirconium and hafnium// High-Purity Substances. − 1992. − № 4. − P. 85-92.
Azhazha V.M., Bobrov Yu.P., Vjugov P.N., Lavrinenko S.D., Pylypenko M.M. and others. Improving the process and equipment sublimation of zirconium and hafnium tetrafluoride//Problems of atomic science and technology. − 2006. − № 4. − P. 138-143.
Azhazha V.M., Bobrov Yu.P., Vjugov P.N., Lavrinenko S.D., Pylypenko M.M., Onischenko L.V. Investigation of gas phase composition in the sublimation chamber during heating of zirconium and hafnium tetrafluoride//Obtaining of high-purity metals and alloys: materials Kharkov Scientific Assembly (ISPM-8). − Kharkov. − 2002. − P. 13-16.
Published
2017-07-21
How to Cite
Pylypenko, M. M., & Drobyshevskaya, A. A. (2017). Purification of hafnium from oxygen and nitrogen. Journal of Surface Physics and Engineering, 11(3), 270 - 274. Retrieved from https://periodicals.karazin.ua/pse/article/view/8758
Section
Статті
У відповідності з типовим шаблоном.
