采用激光诱导有机硅烷气相合成的纳米非晶Si/N/C粉为原料,在1600℃,101.3kPaN2气下,在石墨感应炉中原位制备出α-Si3N4晶须,其直径为0.1-0.5μm,长可达几毫米,纯度较高,无过剩碳及金属杂质
a-Si3N4 whiskers without free carbon and other metal alloy impurities have been synthesized from amotphous nanoSi/N/C powders under 0. 1 MPa N2 at 1600℃. The whiskers synthesized have meandiameter of 0. 1-0.5μm and are longer than several milimeters. The
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[4] | WadaW,ProcessingofCeramicandMetalMatrixComposites,ed.MostaghaciH.ThemetallurgicalSocietyofCIM,PergamonPress,1989:32CunninghamAL,DavisLG.SAMPE,1969 |
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