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Effects of Particle Size on Soft Lithography Process, the Green and Sintered Micro Alumina Parts
Author(s) -
Hassanin Hany,
Jiang Kyle
Publication year - 2013
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2012.02845.x
Subject(s) - materials science , particle size , surface roughness , composite material , particle (ecology) , viscosity , shrinkage , suspension (topology) , surface finish , chemical engineering , oceanography , mathematics , homotopy , pure mathematics , engineering , geology
Alumina micro parts were fabricated using powders in particle sizes of 1 μm, 2.0 μm, and 12.0 μm. The effects of particle size on soft lithography process, green bodies, and sintered characteristics were investigated, including process parameters affecting homogeneous and smooth surface. The effects of particle size were analyzed through suspensions, green, and sintered properties. It was found that the stability of suspensions, sintered density, V ickers micro hardness, surface roughness and edges resolution are significantly improved with the decrease in particle size. On the other hand, suspension viscosity, green density and shrinkage are degraded with the use of finer particles.