X-ray nanotomography of dry colloidal packings

被引：2

作者：

Kim, Yeseul ^{[1
]}

Lee, Sangsul ^{[2
]}

Lim, Jun ^{[2
]}

Weon, Byung Mook ^{[1
,3
,4
]}

机构：

[1] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Sch Adv Mat Sci & Engn, Soft Matter Phys Lab, Suwon 16419, Gyeonggi, South Korea

[2] Pohang Light Source, Ind Technol Convergence Ctr, Pohang 37673, Gyeongbuk, South Korea

[3] Sungkyunkwan Univ, Res Ctr Adv Mat Technol, Suwon 16419, Gyeonggi, South Korea

[4] Johns Hopkins Univ, Dept Biomed Engn, Baltimore, MD 21218 USA

来源：

SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期

关键词：

RANDOM LOOSE PACKINGS; COMPUTER-SIMULATION; ADHESION; PARTICLES;

D O I：

10.1038/s41598-020-74315-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Random packings are crucial in understanding arrangement and geometry of particles. Random packings of dry small particles may be subject to adhesion or friction, as expected theoretically and numerically. We explore experimentally random packings of dry colloids with X-ray nanotomography that directly provides three-dimensional structural and geometric information of dry colloidal packings. We find that dry colloidal packings, as characterized by contact number and packing density, are quite consistent with adhesive loose packings that significantly deviate from random loose packings for hard spheres. This study may offer direct evidence for adhesive loose packings comprising dry small particles, as proven by X-ray nanotomography.

引用

页数：7