The Thermal Characteristics of Combustion Waves in Self- Sustaining Reactions

自持反应中燃烧波的热特性

• 批准号: 9011242
• 负责人: Zuhair Munir
• 金额: $ 27.98万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9011242&HistoricalAwards=false
• 关键词: Thermal; Characteristics; Combustion; Waves; Self

The motivation for research on self-propagating high temperature synthesis (solid combustion) has been largely based upon materials considerations, but many of the unresolved problems are directly or indirectly related to heat and mass transfer issues. Temperature-related wave characteristics are governed, in part, by the thermal conductivity, diffusivity, and specific heat of the reactants and products of combustion. The research, which is to be performed cooperatively with the Institute of Structural Macrokinetics in Chernogolovka, USSR, consists of three experimental activities: investigations of the effect of melting on combustion synthesis of refractory metal carbides, investigations of nonuniform combustion fronts in the filtration combustion synthesis of nitrides, and investigation of the propagation of combustion waves through compositional gradients. Fundamental studies are needed to provide a thorough understanding of the mechanisms of direct combustion synthesis. The apparent complexity of the process has generated only a reserved optimism on the future of the technique with US industry. A research effort coordinated with the Soviet Union, under the guidelines of the US-USSR Cooperation in the Field of Basic Scientific Research Program, will lead to a higher likelihood of understanding the combustion process in synthesis reactions through investigations of the evolving temperature wave.

研究自蔓延高温高压的动机 高温合成（固体燃烧）已经在很大程度上 基于材料的考虑，但许多 未解决的问题直接或间接地与热有关 和传质问题。 温度相关波 特性部分由热特性决定。 反应物的传导率、扩散率和比热 和燃烧产物。 这项研究， 与结构研究所合作 苏联切尔诺戈洛夫卡的宏观动力学包括三个方面 实验活动：调查 在燃烧合成中熔化难熔金属碳化物， 非均匀燃烧前缘的研究 氮化物的过滤燃烧合成及研究 燃烧波的传播通过成分 梯度。 需要进行基础研究， 了解直接燃烧的机理 合成. 这一过程的明显复杂性 只产生了对未来的保留乐观， 技术与美国工业。 一项研究工作协调 在美苏指导下， 基础科研计划领域的合作， 将导致更高的可能性理解 合成反应中的燃烧过程， 研究温度波的演变。