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在材料放气的研究中，阿伦尼乌斯公式常用于加速寿命实验的加速因子计算，利用活化能定量表征其与温度之间的关系。然而，当前研究中往往忽略了放气率在实验过程中的变化，导致理论模型与实际结果存在偏差。文章以阿伦尼乌斯公式为基础，从理论上分别探讨了其与金属材料（304不锈钢）和聚合物材料（聚酰亚胺）放气机理间的联系。结合材料放气的活化能与衰减因子，建立了统一的加速因子数学模型，并通过两种实验方法（流导法，升压法）进行验证。结果表明：由于放气机理不同，聚酰亚胺与不锈钢的衰减因子存在显著差异：聚酰亚胺的放气衰减现象明显，计算其加速因子时必须予以考虑。该研究为不同材料的加速寿命实验提供理论依据，并为后续多材料样品整体加速因子计算奠定了基础。
Abstract：In the study of outgassing of materials, the Arrhenius formula is often used to calculate the acceleration factor of accelerated life experiments, using activation energy to characterize its relationship with temperature. However, the variation of the outgassing rate during the experiment is often neglected in current research, which results in deviations between theoretical models and actual results. Based on the Arrhenius formula,the relationship between it and the outgassing mechanism of metal material(304 stainless steel) and polymer material(polyimide) was investigated theoretically. Combining the activation energy and decay factor of outgassing,a unified mathematical model of acceleration factor is established and verified by two experimental methods(conduction method, boost method). The results showed that there were significant differences in the attenuation factors between polyimide and stainless steel due to the different outgassing mechanisms. The outgassing decay phenomenon of polyimide is evident, and it must be taken into account when calculating its acceleration factor. This study provides a theoretical basis for the accelerated life experiments of different materials and provides a basis for the subsequent calculation of the overall acceleration factor of multi material samples.
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基本信息:
DOI：10.13922/j.cnki.cjvst.202507003
中图分类号:TB75
引用信息:
[1]宋仕涵,刘文豪,周瑞安,等.基于阿伦尼乌斯公式的不同材料放气加速因子研究[J].真空科学与技术学报,2026,46(02):136-142.DOI:10.13922/j.cnki.cjvst.202507003.
基金信息:
国家重点研发计划项目（2023YFC2205702）; 国家自然科学基金项目（62271187）
2025-08-28
2025-08-28
2025-08-28