SBIR Phase II: A Process for Preparing Nanometer-Sized Ceramic Particles at High Production Rates

SBIR 第二阶段：高生产率制备纳米陶瓷颗粒的工艺

• 批准号: 0131395
• 负责人: Wen Huang
• 金额: $ 50万
• 依托单位: Nanotek Instruments, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0131395&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Process; Preparing

This Small Business Innovation Research (SBIR) Phase II project will develop and commercialize a new technology for mass producing nanometer-sized ceramic powders at dramatically reduced costs. The technology, Combined Atomization and Reaction Technique (CART), involves providing an atomizing gas medium containing a reactant element such as hydrogen, oxygen, carbon, nitrogen, chlorine, fluorine, boron, or sulfur; preparing a metal alloy melt super-heated to a spontaneous reaction temperature at which the alloy can undergo a self-sustaining reaction with the selected reactant element; and introducing reactant gas to concurrently mix, atomize, and react with the critically super-heated alloy melt to form ultra-fine ceramic particles in an atomizer chamber. This Phase II project will design and build a prototype pilot-scale CART apparatus to demonstrate the commercial viability of the technology as applied to the synthesis of nano-sized oxides of selected metals that are deemed to have the greatest commercial potential. The commercial potential of ultrafine powders are in the production of catalysts, coatings and films, conductive pastes, cosmetics, electromagnetic components, electronic devices, fire retardant materials, magnetic fluids, sintered and injection-molded parts, ceramic composites, magnetic storage media, phosphors, pigments, polishing media, and toners. Indium-tin oxide (ITO) powders are used to prepare sputtering targets for deposition of transparent films for use in flat-panel display technology. Nano-grained materials can be employed to replace various load-bearing and non-structural parts in automobiles, infrastructures, off-shore structures, piping, containers, electronic equipment housings, etc. Nano-grained cermets and ceramics are outstanding cutting tool materials. Transparent nano-grained ceramics can be utilized in a broad array of applications, including transparent ceramic appliance components, clear "glassware" and artistic artifacts. Transparent ceramics may also be used in ballistic protection armor by law enforcement, security police and armored car personnel.

这个小型企业创新研究(SBIR)第二阶段项目将开发一种新技术，并将其商业化，以大幅降低成本，批量生产纳米陶瓷粉末。该技术结合了雾化和反应技术(CART)，包括提供包含氢、氧、碳、氮、氯、氟、硼或硫等反应性元素的雾化气体介质；制备过热到自发反应温度的金属合金熔体，在该温度下，合金可以与所选择的反应性元素进行自持反应；以及引入反应性气体以在雾化器室内与临界过热的合金熔体同时混合、雾化和反应，以形成超细陶瓷颗粒。该第二阶段项目将设计和建造一个中试规模的CART原型装置，以证明该技术在合成被认为具有最大商业潜力的选定金属的纳米氧化物方面的商业可行性。超细粉末的商业潜力包括生产催化剂、涂料和薄膜、导电浆料、化妆品、电磁元件、电子器件、阻燃材料、磁性流体、烧结和注塑零件、陶瓷复合材料、磁存储介质、荧光粉、颜料、抛光介质和调色剂。氧化铟锡(ITO)粉末被用来制备溅射靶，用于沉积平板显示技术中使用的透明薄膜。纳米晶材料可用于替代汽车、基础设施、海洋结构、管道、集装箱、电子设备外壳等各种承重和非结构件。纳米金属陶瓷和陶瓷是性能优异的刀具材料。透明纳米陶瓷可用于广泛的应用，包括透明陶瓷电器部件、透明“玻璃器皿”和艺术品。透明陶瓷也可用于执法、安全警察和装甲车人员的防弹装甲。