Sintering, Solid State Conversion, and Performance of Laser Host Ceramics

激光主体陶瓷的烧结、固态转换和性能

• 批准号: 0749391
• 负责人: Gary Messing
• 金额: --
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0749391&HistoricalAwards=false
• 关键词: Sintering; Solid; State; Conversion; Performance

NON-TECHNICAL DESCRIPTION: This program is developing the science necessary to produce novel Y3Al5O12 and Y2O3 doped with Nd3+, Er3+, and Yb3+ single crystals for high power laser applications by solid state conversion (SSC). The SSC process takes advantage of extensive grain growth (millimeter to centimeter in size) in a ceramic during high temperature processing such that the largest grains are high quality single crystals. By working in the solid state, rather the commonly used liquid growth processes, the crystals produced have exceptional quality and thus significantly improved optical performance for laser applications.TECHNICAL DETAILS: Under this research program, the SSC method is being developed to produce optical single crystals of Y3Al5O12 and Y2O3 doped with Nd3+, Er3+, and Yb3+. The Penn State University team is investigating the thermodynamics and kinetics of the SSC process and developing a robust, scientific understanding that can be applied to the SSC growth of single crystals of other materials. Optical performance of the new optical crystals is being compared to ceramics of same composition to understand how grain boundaries affect optical behavior. The project is leading to a new suite of solid state optical materials with greater performance and functionality than any material currently available, and these materials will enable future optical technologies with greater efficiency and power than are currently possible. As part of this research program, graduate students are giving lectures and demonstrations to high school students to educate them about materials used in lasers. Special emphasis is placed on highlighting the roles of materials and ceramic research in the future of laser development with the hope of inspiring students to investigate the field of ceramic science as they begin to make their college entrance decisions.

非技术描述：该程序正在开发基于ND3+，ER3+和YB3+单晶掺杂的新型Y3AL5O12和Y2O3所必需的科学，用于通过固态转换（SSC），用于高功率激光应用。 在高温加工过程中，SSC工艺利用了陶瓷中的广泛谷物生长（毫米至厘米的大小），使最大的谷物是高质量的单晶。 通过在固态上工作，而不是常用的液体生长过程，生产的晶体具有出色的质量，因此可以显着改善激光应用的光学性能。技术详细信息：在此研究计划下，正在开发SSC方法来生产Y3AL5O12和Y2O3的光学单晶，并用Nd3+，ER3+，ER3+，ER3+和YB3+和YB3+。 宾夕法尼亚州立大学团队正在研究SSC过程的热力学和动力学，并开发了强大的科学理解，可以应用于其他材料单晶的SSC生长。 将新光学晶体的光学性能与相同成分的陶瓷进行比较，以了解晶界如何影响光学行为。该项目与当前可用的任何材料相比，该项目带来了一套新的固态光学材料套件，具有更大的性能和功能，并且这些材料将使未来的光学技术具有比目前可能更大的效率和功率。 作为该研究计划的一部分，研究生正在向高中生进行讲座和演示，以教育他们有关激光中使用的材料。 特别重点是强调材料和陶瓷研究在激光发展的未来中的作用，希望激发学生在开始做出大学入学决定时调查陶瓷科学领域。