ACTIVATION AND EARLY LIFE OF A PRESSED BARIUM SCANDATE CATHODE

被引：58

作者：

VANOOSTROM, A

AUGUSTUS, L

机构：

[1] Philips Research Laboratories, Eindhoven

来源：

APPLIED SURFACE SCIENCE | 1979年 / 2卷 / 02期

关键词：

D O I：

10.1016/0378-5963(79)90033-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Activation and early life of a pressed barium scandate cathode have been investigated, correlating thermionic emission properties with elemental composition and distribution, as determined with scanning Auger microscopy. It is shown that such cathodes after activation have a current density J ≈ 10 A/cm2 at 950°C which is due to activated scandium oxide (Sc2O3) regions in the surface. © 1979.

引用

页码：173 / 186

页数：14