各种定向凝固方法中Micro-pulling-down(μ-PD)法发展很快,生长出的纤维的晶体组织、物理性能和光学性能较好.介绍了μ-PD法的特点、基本原理、溶质分凝特性、凝固组织及其制备的纤维晶体性能,针对μ-PD法在金属熔体生长时弯月面不稳定而使晶体表面出现不光滑的问题,提出了采用恒定磁场调节使弯月面稳定的改进措施.
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