首先测定了掺杂不同浓度甲紫条件下KDP晶体的溶解度曲线,发现随着掺杂浓度的增大,KDP晶体的溶解度逐渐减小;进而通过测定不同掺杂条件下KDP溶液的成核诱导期,发现随着甲紫掺杂浓度的增大,溶液的诱导期先增大后减小,说明适量浓度的甲紫掺杂能够增加溶液的稳定性。最后进行了掺杂不同浓度甲紫条件下KDP晶体的生长实验,测量了晶体各向的生长速度,发现晶体各向生长速度均随着掺杂浓度的增大先减小后增大,最终减小,当甲紫掺杂浓度为0.1%mol/L时,KDP晶体各向生长速度最快。
Firstly,the solubility curves of KDP crystal doped with different concentrations of crystal violet were measured.It was found that the solubility of KDP decreased gradually with the increase of doping concentration.According to the measured solubility values,the induction periods of KDP solution doped with different concentrations of crystal violet were determined.It was found that the induction period of KDP solution first increased and then decreased with the increase of doping concentration.It was concluded that doping concentration to some extent could raise the stability of crystal growth solution.Finally,growth experiments of KDP crystal doped with different concentrations of crystal violet were conducted.The results showed that crystal growth rate firstly decreased and then increased but finally decreased with the increase of doping concentration.And when the doping concentration of crystal violet was 0.1%mol/L,the growth rate of each direction of KDP crystal was the fastest.