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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Diffusion bonding ： ウィキペディア英語版 Diffusion bonding Diffusion bonding is a solid-state welding technique used in metalworking, capable of joining similar and dissimilar metals. It operates on the materials science principle of solid-state diffusion, wherein the atoms of two solid, metallic surfaces intermingle over time under elevated temperature. Diffusion bonding is typically implemented by applying both high pressure and high temperature to the materials to be welded; it is most commonly used to weld "sandwiches" of alternating layers of thin metal foil and metal wires or filaments. ==Characteristics== Diffusion bonding involves no liquid fusion or filler metal. No weight is added to the total, and the join tends to exhibit both the strength and temperature resistance of the base metal(s). The materials endure no, or very little, plastic deformation; very little residual stress is introduced; and there is no contamination from the bonding process. It may be performed on a join surface of theoretically any size with no increase in processing time; practically speaking, the surface tends to be limited by the pressure required and physical limitations. It may be performed with similar and dissimilar metals, reactive and refactory metals, or pieces of varying thicknesses. Diffusion bonding is most often used for jobs either difficult or impossible to weld by other means, due to its relatively high cost. Examples include welding materials normally impossible to join via liquid fusion, such as zirconium and beryllium; materials with very high melting points such as tungsten; alternating layers of different metals which must retain strength at high temperatures; and very thin, honeycombed metal foil structures. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Diffusion bonding」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.