Larger mirrors are needed to satisfy the requirements of the next generation of UV–Vis space telescopes. Our study attempts to meet this requirement by demonstrating a technology that would deploy a large, continuous, high figure accuracy membrane mirror. The figure of the membrane mirror is corrected after deployment using a contiguous coating of a magnetic smart material (MSM) and a magnetic field. The MSM is a magnetostrictive material that is operable by magnetic write head(s), locally imposed on the nonreflective side of the membrane mirror. We report preparation, figure accuracy, stress analysis, and stability of the MSM coated CP1 polyimide substrate membrane mirror. The figure accuracy and magnetostrictive performance of the MSM coated membrane mirror are measured; furthermore, stability of the CP1 membrane for 48 h is observed and the results are found to be promising. In addition to membrane coating and the experimental procedure, the results of the surface profiling experiments are introduced and discussed.

中文翻译：

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适用于可展开式膜太空望远镜的稳定膜候选物

需要更大的反射镜才能满足下一代UV-Vis空间望远镜的要求。我们的研究试图通过展示一种可部署大型，连续，高图形精度的膜反射镜的技术来满足这一要求。膜镜的形状在部署后使用磁性智能材料（MSM）和磁场的连续涂层进行校正。MSM是一种磁致伸缩材料，可通过局部施加在膜镜的非反射侧的一个或多个磁写入头来操作。我们报告的准备，图形精度，应力分析和MSM涂层CP1聚酰亚胺衬底膜镜的稳定性。测量了MSM涂层膜反射镜的图形精度和磁致伸缩性能；此外，观察到CP1膜在48小时内的稳定性，发现结果很有希望。除了膜包衣和实验步骤外，还介绍和讨论了表面轮廓实验的结果。