Ternary and Quaternary Nitrides

三元和四元氮化物

• 批准号: 0602526
• 负责人: Francis DiSalvo
• 金额: $ 65万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-06-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0602526&HistoricalAwards=false
• 关键词: Ternary; Quaternary; Nitrides

Non-Technical AbstractThis project will explore the preparation and existence of ternary and quaternary nitrides and study their properties. There are already many important uses of binary nitrides. These include aluminum nitride (high thermal conductivity substrates), silicon nitride (coatings for electronics, etc.), titanium nitride (hard coatings for tools), tantalum nitride (metallic conductors and diffusion barriers in electronics, colored surfaces in jewelry, artistic displays, etc.), niobium nitride (thin film super-conducting devices), gallium nitride (blue LEDs, high speed high power electronics). As is known from oxide chemistry, ternary and quaternary compounds offer a greater, more tunable, qualitatively different and more useful set of properties than the binaries alone. So it is reasonable to expect that ternary and quaternary nitrides will eventually provide the same, since so many useful binary nitrides are known and since structurally interesting compounds have been found, some with unusual properties. It is expected that some of these new nitrides will find utility in microelctronics or photonics. This research will also be a vehicle for the training of undergraduates, graduate students and postdocs in forefront techniques and methods of Solid State Science. Interactions with industry will continue. Technical AbstractThe preparation and existence of ternary and quaternary nitrides will be explored and their properties will be studied. Molten metals and their alloys with lithium nitride, the only congruently melting nitride, will be used as fluxes (solvents) to prepare multinary nitrides and to examine them for potential technological uses and for novel phenomena. Initial results suggest that these fluxes and alloys of these fluxes will be highly useful in producing a large number of new compounds with novel structures and properties. This research will also be a vehicle for the training of undergraduates, graduate students and postdocs in the science and art of modern Solid State Chemistry. Our results have been and will be widely disseminated via the WEB, publications, seminars, professional meetings and, where appropriate, via patents.

摘要本课题将探索三元和四元氮化物的制备和存在，并研究其性质。二元氮化物已经有许多重要的用途。这些包括氮化铝（高导热基板），氮化硅（电子产品涂层等），氮化钛（工具硬涂层），氮化钽（电子产品中的金属导体和扩散屏障，珠宝中的彩色表面，艺术显示器等），氮化铌（薄膜超导器件），氮化镓（蓝色led，高速高功率电子产品）。正如氧化物化学所知，三元和四元化合物比单独的二元化合物提供了更大、更可调、质量不同和更有用的一组性质。因此，我们有理由期待三元氮化物和四元氮化物最终也能提供同样的效果，因为我们已经发现了这么多有用的二元氮化物，而且已经发现了结构上有趣的化合物，其中一些具有不同寻常的性质。预计这些新氮化物中的一些将在微电子学或光电子学中得到应用。这项研究也将成为培养大学生、研究生和博士后掌握固态科学前沿技术和方法的工具。与行业的互动将继续。技术摘要：本文将探讨三元和四元氮化物的制备和存在，并对其性质进行研究。熔融金属及其与氮化锂（唯一完全熔化的氮化物）的合金将用作助熔剂（溶剂）来制备多元氮化物，并研究它们的潜在技术用途和新现象。初步结果表明，这些助熔剂和这些助熔剂的合金将在生产大量具有新结构和新性能的新化合物方面发挥重要作用。这项研究也将成为培养现代固体化学科学和艺术方面的本科生、研究生和博士后的工具。我们的研究结果已经并将通过WEB、出版物、研讨会、专业会议以及适当的情况下通过专利广泛传播。