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<p>A&#xa0;technology for producing porous oxide ceramics by irradiating the crucible with an electron beam with an electron energy of 1.4 MeV and a&#xa0;power density of 2.8–55 kW/cm<sup>2</sup> is described. The effect of the rate of the powder charge irradiation on the efficiency of the radiation synthesis—conversion of a&#xa0;mixture of the precursor powders into a&#xa0;ceramic material—is studied. It is found out that increasing the speed of the crucible irradiation with the electron beam from 0.125 to 2.5 cm/s, given an equal absorbed radiation dose, leads to an increase in the efficiency from 70&#xa0;to 98%. The role of electron beam energy losses in the powder volume as a&#xa0;result of irradiation is discussed.</p>

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Dependence of efficiency of oxide ceramics radiation synthesis on time of high-energy electron-beam irradiation

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • V. M. Lisitsyn,
  • E. F. Polisadova,
  • A. A. Karnaukhova,
  • V. I. Oleshko,
  • N. D. Tran,
  • A. T. Tulegenova,
  • M. G. Golkovski

摘要

A technology for producing porous oxide ceramics by irradiating the crucible with an electron beam with an electron energy of 1.4 MeV and a power density of 2.8–55 kW/cm2 is described. The effect of the rate of the powder charge irradiation on the efficiency of the radiation synthesis—conversion of a mixture of the precursor powders into a ceramic material—is studied. It is found out that increasing the speed of the crucible irradiation with the electron beam from 0.125 to 2.5 cm/s, given an equal absorbed radiation dose, leads to an increase in the efficiency from 70 to 98%. The role of electron beam energy losses in the powder volume as a result of irradiation is discussed.