Metallic materials

Japanese: 金属材料 - きんぞくざいりょう
Metallic materials
Metals are materials that have the properties of metals and are used for practical purposes. They make up a large proportion of the materials used by humans. Looking around us, we can see that various metallic materials such as steel and aluminum alloys are used in large quantities, sharing roles with organic polymer materials, ceramic materials, glass, wood, concrete, etc.
[General properties of metallic materials]
The raw materials for metals are usually ores mined from the earth, and these are primarily compounds such as metal oxides and sulfides.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
金属という性質をもち,実用に供される材料。人類の使用している材料の大きな部分を占めている。われわれの身のまわりをみても,鋼やアルミニウム合金などさまざまの金属材料が,有機高分子材料,セラミックス材料,ガラス,木材,コンクリートなどと役割を分担して,多量に使用されているのがわかる。
[金属材料の一般的性質]
 金属の原料はふつうは地中から採掘される鉱石であって,これらは主として金属の酸化物や硫化物などの化合物である。

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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