ABSTRACT Brazing is a 5000-year-old joining process which still meets advanced joining challenges today. In brazing, components are joined by heating above the melting point of a filler metal placed between them; on solidification a joint is formed. It provides unique advantages over other joining methods, including the ability to join dissimilar material combinations (including metal-ceramic joints), with limited microstructural evolution; producing joints of relatively high strength which are often electrically and thermally conductive. Current interest in brazing is widespread with filler metal development key to enabling a range of future technologies including; fusion energy, Solid Oxide Fuel Cells and nanoelectronics, whilst also assisting the advancement of established fields, such as automotive lightweighting, by tackling the challenges associated with joining aluminium to steels. This review discusses the theory and practice of brazing, with particular reference to filler metals, and covers progress in, and opportunities for, advanced filler metal development.

中文翻译：

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钎焊填充金属

摘要 钎焊是一种已有 5000 年历史的连接工艺，如今仍能应对先进的连接挑战。在钎焊中，部件通过加热到高于它们之间的填充金属的熔点来连接；凝固时形成接头。与其他连接方法相比，它具有独特的优势，包括能够连接不同的材料组合（包括金属-陶瓷接头），并且微观结构演变有限；产生相对高强度的接头，这些接头通常是导电和导热的。目前对钎焊的兴趣广泛，填充金属的开发是实现一系列未来技术的关键，包括：聚变能源、固体氧化物燃料电池和纳米电子学，同时也有助于推动汽车轻量化等成熟领域的发展，通过解决与铝和钢连接相关的挑战。这篇综述讨论了钎焊的理论和实践，特别是关于填充金属，并涵盖了高级填充金属开发的进展和机会。