Fig. 3: Characterization of microparticles (MPs) before, during and after sintering.
From: One-pot microfluidic fabrication of micro ceramic particles
a Thermogravimetric analysis, b Derivative of weight loss and (c) Differential scanning calorimetry characterizations of samples during sintering. The samples include synthesized polyacrylamide (PAM) and compounds made of PAM and three different nanoparticles. d Scanning electron microscope (SEM) image of several star-shaped Al2O3 MPs. e SEM image of a single star-shaped Al2O3 MP consistent with the model’s shape at the upper right corner. f High-magnification SEM image of the crystalline grains on Al2O3 MP’s surface with energy-dispersive X-ray (EDX) spectra floating above. g Transmission electron microscope (TEM) image of the crystalline lattice fringes of Al2O3 MPs and its converted (h) diffraction spots. i, SEM image of the isosceles triangular SiO2 MPs. j High-magnification SEM image of SiO2 MP’s surface with EDX spectra floating above. k SEM image of a star-shaped Si3N4 MP. l, High-magnification SEM image of Si3N4 MP’s surface with EDX spectra floating above. Atomic force microscope (AFM) images showing the surface topographies of (m, Al2O3, n, SiO2 and o) Si3N4 MPs. p Surface roughness of three sintered MPs, data are represented as mean values ± s.d. from three samples. X-ray diffraction (XRD) patterns of (q, Al2O3, r) SiO2 and (s) Si3N4 MPs. Source data are provided as a Source Data file.
