...Therefore, the closest packing of spheres can be expressed by stacking A, B, and C, which indicate the stacking order. The repetition of AB has the same format as AC, and since it creates a hexagonal crystal lattice, this pattern is called hexagonal closest packing of spheres (abbreviated as hcp). The repetition of ABC (or ACB) creates a face-centered cubic lattice structure with the diagonal perpendicular to the layers, so this pattern is called cubic closest packing of spheres (abbreviated as ccp). ... *Some of the terminology that mentions "hcp" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…したがって,球の最密充てんの並べ方は,積層順を示すA,B,Cの積み重ね方で表現できる。ABの繰返しで表されるものは,ACのそれと同じ型式になり,六方晶系の格子がつくられるので,この様式を六方最密充てん構造hexagonal closest packing of spheres(hcpと略す)という。またABC(またはACB)の繰返しの積み重ね方は,層に垂直な方向を対角線とする面心立方格子の構造となるので,この様式を,立方最密充てん構造cubic closest packing of spheres(ccpと略す)という。… ※「hcp」について言及している用語解説の一部を掲載しています。 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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