Effects of nano-ZrO2 powder addition on properties, phase composition and microstructure of Al-Si incorporated Al2O3-C materials
[1]LIU Zhi-fang,LIU Xin-hong,HUANG Ya-lei,et al.Effects of nano-ZrO2 powder addition on properties, phase composition and microstructure of Al-Si incorporated Al2O3-C materials[J].Journal of Zhengzhou University (Engineering Science),2015,36(05):15-.[doi:10.3969/j.issn.1671-6833.2015.05.004]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 05
Page number:
15-
Column:
Public date:
2015-11-29
- Title:
- Effects of nano-ZrO2 powder addition on properties, phase composition and microstructure of Al-Si incorporated Al2O3-C materials
- Keywords:
- Al-Si incorporated Al203-C composite; nano-ZrO2 powder; thermo-mechanical property; phasecomposition; microstructure
- CLC:
- -
- Abstract:
- The effects of nano-ZR02 powder on the properties, composition and structure of Al-Si composite Al203-C were studied by using plate corundum aggregate and fine powder, Al powder, Si powder, graphite and nano-Zro2 powder as raw materials and phenolic resin as binder.The results show that the introduction of nano-ZRO2 powder has little effect on the strength of the sample at room temperature and high temperature, but it is beneficial to improve the molding density and oxidation resistance of the sample, and can significantly improve the thermal shock resistance of the sample.The reason for the increase of sample density is that the nano-cobalt oxide has a good filling effect and helps sintering.Nano-zro2 can promote the reaction of Al and Si to generate more non-oxide whiskers, and form a cross-linked network structure in the sample, and the toughening of nano-powder and the phase transition toughening of ZrO2 are conducive to improving the thermal shock resistance of the sample.
- References:
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[1]石凯. Al/Si复合AI,O,-C材料的高温性能﹑显微结构及研制[ D]．郑州:郑州大学材料科学与工程学院，2007.[2]刘新红,钟香崇．加入不同量Al粉和Si粉的低碳Al,0,-C滑板的高温力学性能〔J]．耐火材料，2013,47( 1 ) :6 -9.[3]石凯,钟香崇．金属Al-Si结合Al,O,-C滑板的性能和使用[J].耐火材料,2007 ,41( 3 ) :205 - 207,219.
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