标题:Mechanical Properties of Boron Nitride Nanosheets (BNNSs) Reinforced Si3N4 Composites
作者:Liang, Guandong ;Bi, Jianqiang ;Sun, Guoxun ;Chen, Yafei ;Wang, Weili
通讯作者:Bi, Jianqiang
作者机构:[Liang, Guandong ;Bi, Jianqiang ;Sun, Guoxun ;Chen, Yafei ;Wang, Weili ] Key Laboratory for Liquid–Solid Structure Evolution and Processing of M 更多
会议名称:Symposium on Advances in Powder and Ceramic Material Science held at the 149th Annual Meeting and Exhibition, TMS 2020
会议日期:February 23, 2020 - February 27, 2020
来源:Minerals, Metals and Materials Series
出版年:2020
页码:79-88
DOI:10.1007/978-3-030-36552-3_8
摘要:The boron nitride nanosheets (BNNSs)/silicon nitride (Si3N4) composite ceramics were prepared by SPS sintering. BNNSs with few layers and transverse size in micron-scale were prepared by ball-milling and ultrasound-assisted liquid-phase stripping. In this work, it was found that the BNNSs prepared by these two methods could enhance the mechanical properties of silicon nitride ceramics, and of BNNSs/Si3N4 composite ceramics exhibit better bending strength when adding the ultrasound-assisted liquid-phase stripping BNNSs. The bending strength and fracture toughness of BNNSs/Si3N4 composite ceramics was increased by 36% and 51%, respectively, when 2 wt% BNNSs prepared by ball-milling method were added. The pullout of BNNSs, the bridging of cracks, and the deflection of cracks are the main factors of improving the toughness.
© 2020, The Minerals, Metals & Materials Society.
收录类别:EI
资源类型:会议论文
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