CAJ | 학술논문

通过实验测定了L-丙氨酸掺杂下KDP溶液的亚稳区和诱导期,根据经典成核理论计算了晶体成核的热力学和动力学参数,分析了L-丙氨酸对KDP溶液成核特性的影响。结果表明,随着掺入的L-丙氨酸浓度的增大,KDP的溶解度减小,亚稳区变宽,诱导期变长,溶液更加稳定。采用吊晶法进行了KDP晶体生长实验,发现其（100）面法向生长速度随掺杂浓度增大而减小,在过饱和度σ〉0.04时,晶体（100）面的生长以二维成核生长机制为主。
통과실험측정료L-병안산참잡하KDP용액적아은구화유도기,근거경전성핵이론계산료정체성핵적열역학화동역학삼수,분석료L-병안산대KDP용액성핵특성적영향。결과표명,수착참입적L-병안산농도적증대,KDP적용해도감소,아은구변관,유도기변장,용액경가은정。채용조정법진행료KDP정체생장실험,발현기（100）면법향생장속도수참잡농도증대이감소,재과포화도σ〉0.04시,정체（100）면적생장이이유성핵생장궤제위주。
The width of the metastable zone and the induction period of pure and L-alanine added KDP solution were measured in this paper. According to the classical nucleation theory, the thermodynamic and kinetic parameters of nucleation were calculated, and the effect of additives on nucleation characteristic was analyzed. The results showed that the solubility of KDP decreased and the metastable zone width and the induction period increased with the additive concentration increasing. The growth rate of （100） face of KDP with L-alanine was also investigated at different supersaturation at 35°C. The results showed that the growth rate decreased with the increasing of additive concentration, and the growth of KDP crystal was dominated by the two-dimensional nucleation mechanism when the supersaturation was higher than 0. 04.