PREPARATION OF FINE COPPER POWDERS FROM ORGANIC MEDIA BY REACTION WITH HYDROGEN UNDER PRESSURE .1. EXPERIMENTAL-STUDY

Authors
SARRAFMAMOORY R DEMOPOULOS GP DREW RAL
Citation
R. Sarrafmamoory et al., PREPARATION OF FINE COPPER POWDERS FROM ORGANIC MEDIA BY REACTION WITH HYDROGEN UNDER PRESSURE .1. EXPERIMENTAL-STUDY, Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 27(4), 1996, pp. 577-584
Citations number
10
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Metallurgical and materials transactions. B, Process metallurgy and materials processing science → ACNP
ISSN journal
10735615
Volume
27
Issue
4
Year of publication
1996
Pages
577 - 584
Database
ISI
SICI code
1073-5615(1996)27:4<577:POFCPF>2.0.ZU;2-T
Abstract
In this work, a novel method of preparing copper powder having the req uired properties for thick film applications was investigated. This me thod involves the precipitation of copper powder by hydrogen reduction under pressure from Kelex 100-decanol-Versatic 10-kerosene media. The parameters studied were temperature (453 to 573 K), hydrogen pressure (1.03 to 3.79 MPa) time, use of additives, solvent composition, etc. Powders with the following excellent properties were produced: d(50) = 1 mu m; 80 pet spread -1.3 + 0.7 mu m; specific surface area = 1 +/- 0.2 m(2)/g, spheroidal shape; and 0.056 wt pet oxygen content.