Aggregation of magnetic microspheres : experiments and simulation

Autor:	Helgesen, G., Skjeltorp, A.T., Mors, Paulo Machado, Botet, Robert, Jullien, Remi
Jazyk:	angličtina
Rok vydání:	1988
Předmět:	Transformacoes de ordem-desordem Transformações de fase Fisica teorica da materia condensada Movimento browniano
Zdroj:	Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS
Popis:	Uniformly sized microspheres interacting via long-range magnetic dipolar forces are used to study diffusion-limited cluster aggregation in a plane. The results show that it is possible to scale the temporal evolution of the cluster size distribution and that there is a crossover in fractal dimension from D =1.52 ± 0.05 to D =1.16 ± 0.05 in the limit of weak and strong dipolar coupling. External magnetic fields are shown to produce pronounced chaining with D approaching 1. The results compare favorably with computer simulations of aggregation of the same type of particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od______3056::a7f1b69e2b16a7b5bbe9de5653df15fe Zobrazit plný text záznamu