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Developmental history and trends for reaction-bonded silicon carbide mirrors

机译:反应键合碳化硅镜的发育史和趋势

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During the decade of the 1980's, silicon carbide was funded primarily as the water cooled mirror material for the future and secondarily as a lightweight tactical alternative to beryllium and glass. With the perceived deployment of Star Wars, the payoff for the silicon carbide investment was imminent. Wrong assumption. The emphasis shifted from cooled optics to lightweight, uncooled optics and structures during the early 1990's. CERAFORM SiC became more attractive as a mirror material as the forming process produced lighter, closed back mirrors and a polishing process was developed to finish the bare material to 10 angstroms rms. Cost became the major limitation to penetrating commercial markets and with the defense cut-backs in 1993 UTOS ceases operations. The facilities and intellectual property associated with CERAFORM was at the mercy of bean counters. In March 1995 Xintics officially purchased form the United Technologies Corporation all intellectual property including patents, processes, proposals, engineering notebook, and trademarks pertaining to CERAFORM SiC. In a subsequent deal, part of the furnace facility was also obtained.
机译:在20世纪80年代的十年中,碳化硅主要作为未来的水冷镜材料资助,其次是铍和玻璃的轻量级战术替代品。随着星球大战的感知部署,碳化硅投资的回报迫在眉睫。错误的假设。重点在1990年代早期,从冷却光学转移到轻质,未冷却的光学和结构。作为镜子材料变得更具吸引力,因为形成较轻,封闭反射镜和抛光工艺以将裸料到10埃RMS完成。成本成为渗透商业市场的主要限制,并在1993年的防御副回归UTOS停止运营。与Ceraform相关的设施和知识产权是豆类计数器的怜悯。 1995年3月,新人正式购买了联合技术公司的所有知识产权,包括专利,流程,建议,工程笔记本和与Ceraform SiC有关的商标。在随后的交易中,还获得了部分炉设施。

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