Effect of the crystallization kinetic parameters on the structure and properties of a eutectic alloy of the LaB6–TiB2 system

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• 作者：P. I. Loboda ; T. O. Soloviova ; Yu. I. Bogomol…
• 关键词：reinforced composite material ; eutectic alloy ; lanthanum hexaboride ; titanium diboride ; centrifugal plasma sputtering ; microstructure ; mechanical properties
• 刊名：Journal of Superhard Materials
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：37
• 期：6
• 页码：394-401
• 全文大小：5,473 KB
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  3.Zagorodnya, E.V., Loboda, P.I., Bogomol, Yu.I., et al., Microstructure and mechanical properties of the LaB6-TiB2eutectic alloy produced by electric discharge sintering, Metal Phys. Advanced Technologies, 2011, vol. 33, pp. 351–360.
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  12.Loboda,P.I., Bogomol, Yu.I., Zyma, R.A., et al., Effect of the aluminium doping on the microstructure and micromechanical properties of LaB6-TiB2 purposely crystallized eutectic alloys, Ibid., pp. 343-350.
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• 作者单位：P. I. Loboda (1)
  T. O. Soloviova (1)
  Yu. I. Bogomol (1)
  D. O. Remizov (1)
  O. I. Bilyi (2)
  
  1. KPI, National Technical University of Ukraine, pr. Peremogy 37, Kiev, 03056, Ukraine
  2. E. Paton Institute of Electric Welding, National Academy of Sciences of Ukraine, vul. Antonovycha 56, Kiev, Ukraine
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Russian Library of Science
  
• 出版者：Allerton Press, Inc. distributed exclusively by Springer Science+Business Media LLC
• ISSN：1934-9408

文摘

The effect has been studied of the cooling rate and excess of boron on the formation of microstructures of LaB₆–TiB₂ reinforced ceramic composites during centrifugal sputtering in the argon atmosphere and during sputtering of the alloy melt onto a copper substrate in the helium atmosphere. It has been shown that the increase of the cooling rate to 106 deg/s results in a decrease of diameters of composite material fibers to 0.1–0.15 μm. The decrease of the boron concentration from 2 to 1 wt % has been found to lead to an increase of diameters and decrease of the number of the titanium diboride fibers by a factor of 2–3. Keywords reinforced composite material eutectic alloy lanthanum hexaboride titanium diboride centrifugal plasma sputtering microstructure mechanical properties