Evaluating specific surface area by the secondary electron emission method

被引：0

作者：

Grigor'ev, A.Ya. ^{[1
]}

Myshkin, N.K. ^{[1
]}

Semenyuk, N.F. ^{[1
]}

Kholodilov, O.V. ^{[1
]}

机构：

[1] Acad of Sciences of the Byelorussian, SSR, Russia

来源：

Soviet Journal of Friction and Wear (English translation of Trenie i Iznos) | 1988年 / 9卷 / 05期

关键词：

Electrons--Emission; -; Friction; Microscopes; Electron--Applications; Surfaces--Measurements;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We describe a method for evaluating the specific surface area (SSA) that is based on use of the secondary electron emission phenomenon. We propose a scheme for realization of the method on a scanning electron microscope. We study surfaces obtained by differing treatment: turning, boring, milling, planing, and grinding. It is found that the SSA does not exceed the nominal area by more than 10% and is practically independent of the machining mode and the roughness. We study the dependence of the asperity slopes on their spacing and the dependence of the second-order spectral density moment of an isotropic surface on the lower asperity spacing bound.

引用

页码：18 / 22