MODIFICATION OF ALUMINA POWDERS BY NICKEL AND PLATINUM COATING

被引：12

作者：

SCHILS, HW

HEUBERGER, M

FREY, H

JEHN, HA

TELLE, R

RAUB, CJ

机构：

[1] FORSCHUNGSINST EDELMETALE & METALLCHEM,W-7070 SCHWABISCH GMUND,GERMANY

[2] MAX PLANCK INST MET RES,INST WERKSTOFFWISSENSCH,PULVERMET LAB,W-7000 STUTTGART,GERMANY

[3] LOT & SCHWEISS GERATE GMBH,W-7301 AICHWALD ESSLINGEN,GERMANY

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 139卷

关键词：

D O I：

10.1016/0921-5093(91)90615-T

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Coarse-grained Al2O3 powder was homogeneously sputter coated with a thin nickel or platinum film and in part subsequently ion beam mixed by 60 keV Ar+ ion bombardment. The sintering behaviour of the coated powders as compared with untreated samples was determined. The sintering rate is almost unchanged for nickel-coated powders, while platinum coating decreases the sintering rate when treated at the same temperature. The magnetic properties and electrical conductivity of sintered samples as well as the catalytic properties of the coated powders with respect to NO and CO conversion were additionally measured. They show a certain conductivity, i.e. a "bulk-metallized" ceramic material can be prepared. Furthermore, the system for sputter coating and ion beam treatment is described.

引用

页码：185 / 192

页数：8

共 19 条

[1] BIOLOGY OF CUTEREBRA-LEPUSCULI TOWNSEND (DIPTERA, CUTEREBRIDAE) IN COTTONTAIL RABBITS IN IDAHO [J].