Na+是KDP原料中一种常见的杂质离子,采用“点籽晶”快速生长法生长了一系列掺杂Na+的KDP晶体,研究了不同掺杂浓度下Na+对KDP晶体热膨胀及硬度的影响.实验表明,随着Na+掺杂浓度的增大,KDP晶体Z向热膨胀系数逐步增大；KDP晶体(001)面的显微硬度整体大于(100)面的硬度,随着Na+掺杂浓度升高,KDP晶体各晶面硬度显著降低.
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