Effect of Zn addition on mechanical properties of brass hollow spheres

Polymer spheres coated with a slurry, consisting of copper(I) oxide + Zn (0–30 wt.%) powders, water and polyacrilamide (PA), were sintered at temperatures ranging from 800 to 930 °C under a hydrogen atmosphere to fabricate high-porous brass hollow spheres. The metallurgical and mechanical properties...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-06, Vol.483, p.254-257
Hauptverfasser:	Koo, Ja-Myeong, Araki, Hideki, Jung, Seung-Boo
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Compression test Copper–zinc alloy (brass) Elasticity. Plasticity Exact sciences and technology Hollow sphere Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Porous metal Powder metallurgy Powder metallurgy. Composite materials Production techniques Sintering Technology Zn evaporation
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Beschreibung
Zusammenfassung:	Polymer spheres coated with a slurry, consisting of copper(I) oxide + Zn (0–30 wt.%) powders, water and polyacrilamide (PA), were sintered at temperatures ranging from 800 to 930 °C under a hydrogen atmosphere to fabricate high-porous brass hollow spheres. The metallurgical and mechanical properties of the spheres were investigated with different Zn contents and sintering temperatures. Increasing sintering temperature accelerated the Zn evaporation and sphere densification. Increasing Zn content and decreasing sintering temperature increased the porosity of the spheres, but degraded their mechanical properties.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2006.01.183