peritectic reaction

The experimental results showed that the peritectic reaction did exist in the phase diagram of zinc-aluminium binary alloy. The β phase is leading one in the eutectic transformation, and the eutectic colony grown is radialized.

试验结果表明：在Zn&Al二元合金相图中确有包晶反应，β相是共晶转变的领先相，共晶团呈辐射状生长。

Some basic problems in preparing YBCO superconductor by directional solidification, including the peritectic reaction, the interface stability and its control, the orientation of solidification, and crystal orientation control, were discussed.

讨论了YBCO高温超导体定向凝固中所涉及的包晶反应、界面稳定性及其形态控制、凝固取向和晶向控制等问题。

When cooling, peritectic reaction between α-Mg and Zr happened in the Zn-rich area in the grains, while eutectic reaction and eutectoid reaction happened in grain boundaries.

冷却时，α-Mg与Zr在晶内富Zn处发生包晶反应，晶界处发生共晶反应和共析反应。