• 作者： Chen, Hsi-Kuei; Lin, Chun-I
• 中文摘要： 本文提出一個碳/金屬氧化物混合物在氮氣氣氛下還原氮化的物理化學模式。基於本模式,在正常擴散區域下,我們導出無因次的統禦方程式。本系統的特性可由五個無因次參數來決定:反應/擴散比.sigma./sup 2/、反應性比.beta ./sub 1/和.beta./sub 2/、反應物含量比.gamma.和謝烏數N/sub sh/。當.beta.、.gamma.或N/sub sh/的值增加或.sigma./sup 2/或.beta./sub 1/的值降低時,反應速率增加。
• 英文摘要： A physico-chemical model is proposed to describe the nitridation of carbon/metal oxide powder mixture in a stream of nitrogen. Based on the model, dimensionless governing equations are derived to represent the system in normal diffusion region. The system is characterized by five dimensionless parameters: the reaction/diffusion ratio.sigma./sup 2/, the reactivity ratios .beta./sub 1/ and.beta. /sub 2/, the reactant amount ratio .gamma. and the Sherwood number N/sub sh/. The reaction was found to increase when the values of .beta./sub 2/, .gamma. or N/sub sh/ increased, or the values of . sigma./sup 2/ or.beta./sub 1/ decreased.
• 中文關鍵字： 數學模型; 碳熱氮化反應; 金屬氧化物; 擴散; 氧化還原反應
• 英文關鍵字： Mathematical Model; Carbothermic Nitridation; Metal Oxide; Diffusion; Oxidation-Reduction Reaction