A comparative analysis between two methods of drying ceramics (microwave and conventional) was done based on the results of the Bigot curves of an electro-porcelain paste used as an insulator element in high-voltage circuits. The study was conducted on ceramic bars molded at 300, 600, and 900 kPa and, as expected, it was found that the higher the pressure, the lower the shrinkage and the smoother moisture profiles.The microwave technique proved to be a much more efficient method of drying ceramics because the results were always better: the volumetric shrinkage was lower (less defects), it required half the time to dry an object (less pollution and costs), and it produced a more uniformly dried piece (the residual moisture content was better distributed throughout the object). Additionally, the mechanical properties of microwave-dried bars were 20% better and the dielectric strength intensity was slightly higher than that of conventionally dried samples.
Resumen Este artículo pretende analizar el origen fundamental de los problemas de la industrialización en Colombia. Así pues se tiene en cuenta la no generación de nuevos sectores que permitan una estructura más integrada, la cual viene acompañada de una mentalidad proteccionista, además se muestra la existencia de una crisis en la formación de capital en la industria colombiana; debido al estancamiento relativo del proceso de sustitución de importaciones. Del mismo modo se hace énfasis en el modelo sustitutivo, base del desarrollo industrial, con el fin de ubicar algunos de sus elementos' y debilidades para desembocar en el análisis del sector externo en relación con la industrialización y su evolución cuantitativa. Por último, se plantea una hipótesis relativa al auge del sector financiero y el deterioro de la inversión industrial. Palabras claves: Industria colombiana, proteccionismo, modelo sustitutivo, desarrollo industrial.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.