Evolution of the dense packings of spherotetrahedral particles: from   ideal tetrahedra to spheres

doi:10.1038/srep15640

CORC > 北京大学 > 工学院

	Evolution of the dense packings of spherotetrahedral particles: from ideal tetrahedra to spheres
	Jin, Weiwei ; Lu, Peng ; Li, Shuixiang
刊名	SCIENTIFIC REPORTS
	2015
关键词	TRUNCATED TETRAHEDRA REGULAR TETRAHEDRA CRYSTALLINE
DOI	10.1038/srep15640
英文摘要	Particle shape plays a crucial role in determining packing characteristics. Real particles in nature usually have rounded corners. In this work, we systematically investigate the rounded corner effect on the dense packings of spherotetrahedral particles. The evolution of dense packing structure as the particle shape continuously deforms from a regular tetrahedron to a sphere is investigated, starting both from the regular tetrahedron and the sphere packings. The dimer crystal and the quasicrystal approximant are used as initial configurations, as well as the two densest sphere packing structures. We characterize the evolution of spherotetrahedron packings from the ideal tetrahedron (s = 0) to the sphere (s = 1) via a single roundness parameter s. The evolution can be partitioned into seven regions according to the shape variation of the packing unit cell. Interestingly, a peak of the packing density Phi is first observed at s approximate to 0.16 in the Phi-s curves where the tetrahedra have small rounded corners. The maximum density of the deformed quasicrystal approximant family (Phi approximate to 0.8763) is slightly larger than that of the deformed dimer crystal family (Phi approximate to 0.8704), and both of them exceed the densest known packing of ideal tetrahedra (Phi approximate to 0.8563).; National Natural Science Foundation of China [11272010, 11572004]; SCI(E); PubMed; ARTICLE; lsx@pku.edu.cn; 15640; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/415654]
专题	工学院
推荐引用方式 GB/T 7714	Jin, Weiwei,Lu, Peng,Li, Shuixiang. Evolution of the dense packings of spherotetrahedral particles: from ideal tetrahedra to spheres[J]. SCIENTIFIC REPORTS,2015.
APA	Jin, Weiwei,Lu, Peng,&Li, Shuixiang.(2015).Evolution of the dense packings of spherotetrahedral particles: from ideal tetrahedra to spheres.SCIENTIFIC REPORTS.
MLA	Jin, Weiwei,et al."Evolution of the dense packings of spherotetrahedral particles: from ideal tetrahedra to spheres".SCIENTIFIC REPORTS (2015).