title: X-ray tomography study of the random packing   structure of ellipsoids.
abstract: We present an X-ray tomography study for the random packing of ellipsoids. The local structure displays short-range correlations. In addition to the contact number Z, we introduce ρshell, the average contact radius of curvature for contacting neighbors, as an additional parameter to characterize the local orientational geometry. In general, the local free volume w is affected by both Z and ρshell. We believe that the particle asphericity induces a polydispersity effect to influence the packing properties. A model is introduced which explicitly maps the ellipsoid packing onto a polydispersed sphere one, and it reproduces most of the experimental observations.
authors: Chengjie
authors: C
authors: Xia
authors: Kuan
authors: K
authors: Zhu
authors: Yixin
authors: Y
authors: Cao
authors: Haohua
authors: H
authors: Sun
authors: Binquan
authors: B
authors: Kou
authors: Yujie
authors: Y
authors: Wang