此外还讨论了生长条纹、组分过冷、应力和位错等缺陷问题。
The defects such as growth striation constitutional supercooling, stress and dislocation are also dis-cussed in the paper.
高温下CaF2的挥发造成了在晶体生长后期熔体中组分偏离化学计量比，出现组分过冷，形成包裹物。
The volatilization of CaF2 at a high temperature causes the deviation in composition from the stoichiometry, which results in the formation of inclusions and an increase in the dislocation density.
采用最佳的生长和工艺条件克服了铌酸锶钠锂晶体的组分过冷和内部生长条纹，提高了晶体的光学均匀性。
The constitutional supercooling and internal growth striation in the SNLN crystals have been overcome and the optical homogeneity of the crystals have been improved by employing optimum growth...
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