Particle size dependent chemistry from laser ablation of brass.
The proportion of zinc and copper in particles formed by laser ablation of brass was found to vary with the particle diameter. Energy-dispersive X-ray analysis showed that smaller particles were zinc enhanced while larger particles were composed mostly of copper. A model based on condensation of vapor onto large droplets ejected from a melted liquid layer is proposed to describe the change in particle composition versus size.
Liu
Chunyi
C
Lawrence Berkeley National Laboratory Berkeley, California 94720, USA.
Mao
Xianglei
X
Mao
Sam S
SS
Greif
Ralph
R
Russo
Richard E
RE
D055598:Chemical Phenomena; D002621:Chemistry; D003300:Copper / Q000737:chemistry*; D007834:Lasers; D010316:Particle Size; D013499:Surface Properties; D013997:Time Factors; D015032:Zinc / Q000737:chemistry*
C048399:brass; D003300:Copper; D015032:Zinc