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oe1(光电查) - 科学论文

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  • Structure and Phase Evolution in a SiC Ceramic Surface Layer During Electron-Beam Treatment

    摘要： The elemental and phase compositions and substructure changes in the surface layer of SiC ceramic irradiated by pulsed electron beams of variable intensity were investigated. The structure and phase state of the ceramic surface layer were shown to be controlled by the electron-beam parameters. The electron-beam irradiation regimes leading to nanostructure detection in the SiC-ceramic surface layer were determined.

    关键词： surface layer,electron beam,polytypes,SiC ceramic

    更新于2025-09-19 17:15:36

  • Impulse Laser Effect on Graphitized Surface of Y–TZP-Ceramics

    摘要： The role of a graphite layer on the surface of ceramics based on tetragonal zirconia, partially stabilized by yttrium oxide (Y–TZP-ceramics) under the action of a pulsed laser was studied using original methodology. It has been found that surface graphitization increases the fraction of absorbed laser radiation, and as a result, heating, melting and evaporation of Y–TZP-ceramics occur under less intense modes, favorably affecting the use of pulsed laser radiation for surface modification.

    关键词： Y–TZP-ceramics,graphite layer,pulsed laser effect,surface layer,roughness,surface morphology

    更新于2025-09-12 10:27:22