Processing and performance of a novel cathode material

被引：20

作者：

Hodgson, SNB ^{[1
]}

Baker, AP

Goodhand, CJ

van der Heide, PAM

Lee, T

Ray, AK

Al-Ajili, A

机构：

[1] Loughborough Univ Technol, Inst Polymer Technol & Mat Engn, Loughborough LE11 3TU, Leics, England

[2] Philips Components, Blackburn BB1 5RZ, Lancs, England

[3] Sheffield Hallam Univ, Sch Engn, Sheffield S1 1WB, S Yorkshire, England

来源：

APPLIED SURFACE SCIENCE | 1999年 / 146卷 / 1-4期

关键词：

oxide cathode; cermet; conductivity; percolation model; emission current;

D O I：

10.1016/S0169-4332(99)00038-0

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：

An investigation has been carried out into the development of a novel cermet cathode material with enhanced conductivity through low volume fraction additions of an acicular conductive phase. The manufacturing process is compatible with current commercial techniques and is anticipated to result in little additional costs. Results have indicated that this form of conductive phase overcomes many of the problems identified in previous attempts to enhance conductivity by conductive phase addition, with the percolation threshold for conduction being of the order of 5 vol.% metallic phase. Encouraging results have been obtained in emission trials. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：79 / 83

页数：5

共 8 条

[1] GAERTNER GF, 1992, Patent No. 0560436
[2] Heywang G., 1989, ELEKT LEITENDE KUNST, P347
[3] MAURER DW, 1967, BELL SYST TECH J, V46, P10
[4] NARITA M, 1995, Patent No. 0685868
[5] COATED POWDER CATHODES - APPLICATIONS AND TECHNOLOGY
RUTTER, VE
SCHIMMEL, DG
HANDY, RA
SMITH, BH
[J]. APPLIED SURFACE SCIENCE, 1979, 2 (02) : 118 - 127
[6] HOPPING CONDUCTIVITY IN GRANULAR METALS
SHENG, P
ABELES, B
ARIE, Y
[J]. PHYSICAL REVIEW LETTERS, 1973, 31 (01) : 44 - 47
[7] ZALLEN R, 1983, PHYSICS AMORPHOUS SO
[8] [No title captured]

← 1 →