publication . Article . 2009

EFFECT OF PULSE CURRENT WAVEFORMS IN NANOCRYSTALLYNE ELECTRODEPOSITION

JAROL MOLINA; BIBIAN HOYOS;
Open Access Spanish
  • Published: 01 Jun 2009
  • Publisher: Universidad Nacional de Colombia
Abstract
Se desarrolló un modelo matemático para establecer el efecto que tiene la forma de las ondas de corriente pulsante en el tamaño y dureza de nanocristales electrodepositados. El modelo relaciona de forma directa las variables típicas de las ondas (frecuencia, ciclo de trabajo y corriente pico) con la dureza de los depósitos generados mediante corriente continua y con cuatro tipos de ondas de corriente pulsante: rectangular, rampa ascendente, rampa descendente y triangular. Se evaluaron los resultados del modelo para ciclos de trabajo de 20 y 80%, con frecuencias de 50 y 150 Hz y corrientes pico de 4 y 8 kA/m². El modelo predice que pequeños aumentos en el sobrepo...
Subjects
free text keywords: Ondas de corriente, electrodepositación, nucleación, crecimiento, Modelo matemático, Pulse current, electroplating, nucleation, growth, Mathematical model, Technology, T, Mining engineering. Metallurgy, TN1-997
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publication . Article . 2009

EFFECT OF PULSE CURRENT WAVEFORMS IN NANOCRYSTALLYNE ELECTRODEPOSITION

JAROL MOLINA; BIBIAN HOYOS;