TY - JOUR A1 - Yao, Dongxu A1 - Xia, Y. A1 - Zuo, K.-h. A1 - Jiang, D. A1 - Günster, Jens A1 - Zeng, Y.-P. A1 - Heinrich, J.G. T1 - Porous Si3N4 ceramics prepared via partial nitridation and SHS T2 - Journal of the European Ceramic Society N2 - Porous Si3N4 ceramics were prepared via partial nitridation and self-propagating high temperature synthesis (SHS) process. Raw Si and additive Y2O3 were mixed and molded under 10 MPa into a compact, the compact was partial nitridation at 1300 °C to form a porous Si/Si3N4, and then it was buried in a Si/Si3N4 bed for SHS to obtain porous Si3N4 with rod-like β-Si3N4 morphology. The processing combined the advantages of the nitridation of Si and SHS with low cost, low shrinkage and time saving. Porous Si3N4 with a porosity of 47%, a strength of 143 MPa were obtained by this method. PB - Elsevier CY - Oxford KW - Si3N4 KW - Strength KW - Porosity PY - 2013 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/31282 AN - OPUS4-31282 SN - 0955-2219 SN - 1873-619X VL - 33 IS - 2 SP - 371 EP - 374 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany