Connecting particle sphericity and circularity

• 作者: John R.Grace Arian Ebneyamini
• 来源期刊: 颗粒学报（英文版）
• 年，卷（期）: 2021,（1）
• 页码范围: 1-4
• 页数: 4页
• 语种: 英文

摘要

Sphericity,a measure of how much a particle's shape deviates from spherical,is useful as a shape factor when characterizing particulate materials.However,particle surface areas,required when determining the sphericity,are very difficult to measure.As a result,the circularity,derivable from microscopic views,is often measured instead and assumed to be equal to the sphericity.This paper shows that the two quantities are generally not equal for simple non-spherical shapes and provides advice on improving the estimation of sphericity from circularity.