Doping effect of 1 mol% divalent, trivalent or tetravalent cations on the flash sintering of Y₂O₃ was investigated under DC electric fields ranged from 0 to 1000 V·cm^-1. The examined dopants were Mg²⁺, Sr²⁺, Al³⁺, La³⁺, Si⁴⁺, Ge⁴⁺ and Zr⁴⁺. The cation-doped Y₂O₃ specimens showed flash sintering at the DC fields greater than 300 V·cm^-1. The onset temperature for the flash event in the Y₂O₃ depended on the doped cations; the onset temperature was reduced by doping the divalent cations, while that was increased by the trivalent or tetravalent cations-doping. The flash sintered, Al³⁺, Ge⁴⁺ or Si⁴⁺-doped Y₂O₃ bodies showed the relative density of greater than 98 %, and exhibited translucency. These cations decreased the electric conductivity of the Y₂O₃ green bodies, resulting in the relatively great electric power dissipation and enhanced diffusional mass transport during the flash event.

在0至1000 V·cm ^-1的直流电场下，研究了1 mol％二价，三价或四价阳离子对Y ₂ O ₃的快速烧结的掺杂效果。所检查的掺杂剂是Mg 2 ⁺，Sr 2 ⁺，Al ³⁺，La ³⁺，Si ⁴⁺，Ge ⁴⁺和Zr ⁴⁺。阳离子掺杂的Y ₂ O ₃样品在大于300 V·cm ^-1的直流场上显示出快速烧结。Y ₂ O _3中闪光事件的起始温度取决于掺杂的阳离子；掺杂二价阳离子可降低起始温度，而掺杂三价或四价阳离子则可提高起始温度。闪蒸烧结的Al ³⁺，Ge ⁴⁺或Si ⁴⁺掺杂的Y ₂ O ₃体的相对密度大于98％，并且具有半透明性。这些阳离子降低了Y ₂ O ₃生坯的电导率，从而导致了相对较大的电耗散并增强了闪光事件期间的扩散质量传输。