论文标题
火花等离子体烧结中的电流效应：从物理现象的证据到构成方程式制定
Electric current effects in spark plasma sintering: From the evidence of physical phenomenon to constitutive equation formulation
论文作者
论文摘要
在火花等离子体烧结期间，在相同温度（SPS）的相同温度（SPS）中，将3种加热模式用于使ZRN粉末具有3个不同水平的电流密度。 SPS的烧结的组成型方程应用于从三种SPS模式的ZRN的实验孔隙率演变，这表明高电流密度增加了ZRN颗粒的电流辅助可变形性值，从而导致流动应力减少。电流流动增强了位错运动，通过适用于X射线衍射结果的修改的Williamson-hall方程对此进行了实验证明和分析，并进行了ZRN颗粒的机械强度测试。
The 3 heating modes are utilized to make ZrN powders have 3 different levels of the electric current density at the same temperature during spark plasma sintering (SPS). The constitutive equation of sintering for SPS is applied to the experimental porosity evolution of ZrN from three SPS modes, and this showed high electric current density increase the electric current assisted deformability value of ZrN pellets, resulting in a reduction of the flow stress. The electric current flow enhances the dislocation motion, which was experimentally proved and analyzed by modified Williamson-Hall equation applying to X-ray diffraction results, and the mechanical strength test of ZrN pellets.
