caa a22 4500 388020342 CHVBK 20180307124922.0 cr unu---uuuuu 161130e199809 xx s 000 0 eng 10.1557/JMR.1998.0360 doi S0884291400045969 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0360 Microstructure and Properties of Nanosemicrystalline Si3N4 Ceramics with Doped Sintering Additives: Part I. Microstructural Characterization of Nanosemicrystalline Si3N4 Powders [Elektronische Daten] The characteristics of nanosized silicon nitride powders with doped Y2O3 and Al2O3 fabricated by a plasma-reacted chemical process were investigated. The chemical compositions of the powders were analyzed by wet chemical analysis. The morphology and the size distribution were determined by transmission electron microscopy (TEM). TEM with energy dispersive spectroscopy (EDS) was used to verify the existence of sintering additives in each individual particle. The crystal structure of the powders was identified by the selected area diffraction pattern (SADP). X-ray diffraction (XRD) technique was used for phase analysis and the measurement of degree of crystallinity. The characteristics of chemical bonding was analyzed by using Fourier transform infrared spectroscopy (FTIR). Copyright © Materials Research Society 1998 Ryu K. H. Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, California 90095-1595 Yang J-M Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, California 90095-1595 Journal of Materials Research Cambridge University Press 13/9(1998-09), 2580-2587 0884-2914 13:9<2580 1998 13 JMR https://doi.org/10.1557/JMR.1998.0360 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0360 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ryu K. H. Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, California 90095-1595 NATIONALLICENCE 700 1- Yang J-M Department of Materials Science and Engineering, University of California-Los Angeles, Los Angeles, California 90095-1595 NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/9(1998-09), 2580-2587 0884-2914 13:9<2580 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence SWISSBIB 388020342 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge