热电偶与金属接触区扩散过程的研究

E. O. K., M. A. T.
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引用次数: 0

摘要

本文通过实验研究了金属-焊料-半导体系统接触区域的扩散过程。测定了Pb-Sb钎料交换试样的扩散系数、活化能和指前因子。研究表明,铅基焊料对热电材料具有较高的惰性。人类目前正面临着复杂的挑战,如能源成本上升、污染和全球变暖。为了减少其后果,科学家们正致力于改进专注于能量收集的发电机。热电发电机(teg)已经证明了它们通过塞贝克效应将热能直接转化为电能的能力。由于其独特的优势,热电系统在过去十年中作为清洁能源生产的一种有前途的替代技术而出现。(1 - 11)。开关是热电模块制造中最耗时、最负责任的操作。其中包括大量的接点,故障通常是由于触点断开而发生的[2-8]。为了防止内部机械应力的有害影响,在热电电池制造中,有必要在支路和连接板之间使用阻尼层[3-14]。所述阻尼层由具有足够塑性和低欧姆电阻的材料制成。它通常是由铅制成的。研究结果表明,采用单线焊接技术在化学沉积镍的抗扩散层上焊接Pb - Sb共晶焊料具有优势。在这种情况下,触点中的共晶焊料Pb - Sb同时起到阻尼和开关焊料的作用。
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Study of diffusion processes in contact areas of thermocouples with metals
Diffusion processes on the contact areas of the metal-solder-semiconductor system are experimentally studied in this work. Diffusion coefficients, activation energies and pre-exponential factors in samples commutated with solders based on Pb-Sb are determined. It has been established that lead-based solder has a significantly higher inertness to thermoelectric materials. Humans are currently facing complex challenges such as rising energy costs, pollution and global warming. To reduce their consequences, scientists are concentrating on improving power generators focused on energy harvesting. Thermoelectric generators (TEGs) have demonstrated their ability to convert thermal energy directly into electricity through the Seebeck effect. Due to the unique advantages, they present, thermoelectric systems have emerged over the past decade as a promising alternative among other technologies for the production of clean energy. [1-11]. Switching is the most time-consuming and responsible operation in the manufacture of thermoelectric modules. In them, which include a significant number of junctions, failures most often occur due to broken contacts [2-8]. To prevent the harmful effects of internal mechanical stresses, in the manufacture of thermoelectric batteries, it is necessary to use a damping layer between the branch and the connecting plate [3-14]. The damping layer is made of a material with sufficient plasticity and low ohmic resistance. It is usually made from lead. The results of the research showed the advantages of using a single -wire technology for soldering with Pb - Sb eutectic solder using an anti -diffusion layer of chemically deposited nickel. In this case, the eutectic solder Pb - Sb in the contact simultaneously performs the role of a damper and a switching solder.
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来源期刊
International Journal of Physical Sciences
International Journal of Physical Sciences 综合性期刊-综合性期刊
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4
审稿时长
24 months
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