Metal powder is an aggregate of metal particles with a size of 1000 μm (1/1000 mm) or less. Metal powder, like other inorganic or organic powders, has properties not found in lumpy substances, such as flowability, mixability, compressibility, moldability, explosiveness, and sinterability. These properties vary depending on the powder's components as well as the size and shape of the particles. Each type of metal powder has its own unique uses that take advantage of these properties, but the powders currently in large use are iron powder, aluminum powder, copper powder, etc. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
金属粉末とは,大きさが1000μm(1/1000mm)以下の金属粒子の集合体をいう。金属粉末は,他の無機物または有機物の粉末とほぼ同様に,塊状物質にみられない性質,すなわち流動性,混合性,圧縮性,成形性,爆発性,焼結性などを有する。これらの性質は,粉末の成分ばかりでなく,粒子の大きさや形状などに依存して変化する。各種の金属粉末には,これらの性質を利用した独特の用途があるが,現在多量に使われている粉末は鉄粉,アルミニウム粉,銅粉などである。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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