Please help me retrieve the following articles:
1)
Microwave Sintering and Infiltration of Highly Porous Silicon Nitride Ceramics to Form Dense Ceramics
Monika Willert-Porada et al., 2005, Key Engineering Materials, 287, 171-176
DOI: 10.4028/www.scientific.net/KEM.287.171
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http://www.scientific.net/KEM.287.171Effects of β-Si3N4 Seeds Addition on Microstructure and Mechanical Properties of Porous Si3N4 Ceramics
Fang Li Yu et al., 2012, Materials Science Forum, 724, 201-204
DOI: 10.4028/www.scientific.net/MSF.724.201
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http://www.scientific.net/MSF.724.201High Performance Porous Wave-Transmitting Silicon Nitride Ceramics by Gel-Casting Technique
Jian Zhang et al., 2012, Key Engineering Materials, 512-515, 869-872
DOI: 10.4028/www.scientific.net/KEM.512-515.869
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http://www.scientific.net/KEM.512-515.869