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用温梯法生长出直径为76mm的红宝石晶体,用偏光显微镜观察了夹杂物的形状和分布规律,进一步用电子探针分析了夹杂物成分,并用吸收光谱分析了Cr3+的浓度分布规律.结果表明:夹杂物呈漏斗状的分布,晶体中部和末端纯度较高;Cr3+在晶体中的浓度呈有规律的分布,随着生长的进行,Cr3+的浓度沿径向和生长轴的方向都逐渐增加.

参考文献

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