Silicon nitride powder

High-purity ultra-fine ceramic silicon nitride powder


Silicon nitride powder
ItemsValue Test methodStandard
 α/%≥93 X-ray diffraction methodJIS R1640
 O/%＜1.3 Infrared absorption methodASTM C1494
 C/%＜0.1 Infrared absorption methodASTM C1494
 Free Si%＜0.1--
 N/%≥38.6 Infrared absorption methodASTM C1494
 Fe/ppm＜300 Atomic absorption spectroscopyDB13/T 1232-2010
 Al/ppm＜150 Atomic absorption spectroscopyDB13/T 1232-2010
 Ca/ppm＜150 Atomic absorption spectroscopyDB13/T 1232-2010
 Silicon nitride powder(ultra fine)
ItemsValueTest methodStandard
α/%≥92X-ray diffraction methodJIS R1640
O/%＜1.3Infrared absorption methodASTM C1494
C/%＜0.1Infrared absorption methodASTM C1494
N/%≥38.6Infrared absorption methodASTM C1494
Fe/ppm＜400Atomic absorption spectroscopyDB13/T 1232-2010
Al/ppm＜200Atomic absorption spectroscopyDB13/T 1232-2010
Ca/ppm＜200Atomic absorption spectroscopyDB13/T 1232-2010
Size(μm)D50<0.5Laser particle size analyzerGB/T 19077.1
D90<1.3