Because of the lower density of the rejected solute during the horizontal solidification of NH4C1-70%H2O, channels grow slantways and upwards and A type segregates form in the upper region of mush.

 
  • H2O侧向凝固时;析出的溶质密度较小;偏析通道倾斜向上生长;在糊状区上部形成A偏析.
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