Authors: Mou Cheng Li Li Li Jiang Wen Qi Zhang Yu Hai Qian Su Zhen Luo Jia Nian Shen
Publish Date: 2006/08/24
Volume: 11, Issue: 4, Pages: 549-553
Abstract
Nanocrystalline zinc coatings were produced by pulse electrodeposition in acid sulfate bath containing thiourea and benzalacetone additives and characterized by Xray diffraction and scanning electron microscopy techniques The influence of benzalacetone concentration and pulse peak current density on the grain size and crystallographic orientation of zinc deposits was investigated Zinc electrodeposited from additivefree solutions or with one of the two additives is not composed of nanosized crystals The mixture additives of thiourea and benzalacetone give rise to the formation of particlelike nanocrystalline zinc with a 10ī1 random orientation A change in peak current density from 2 to 1 A/cm2 only increases the grain size from 60 to 62 nm
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