真空烧结原位合成制备SiC+WSi2/MoSi2复合材料及其性能
Preparation of SiC+WSi2/MoSi2 Composites by In-situ Synthesis Vaccum Sintering and Their Properties
摘 要
以钼粉、硅粉、钨粉和石墨粉为原料, 采用真空烧结原位合成方法制备了不同SiC和WSi2配比颗粒增强的SiC+WSi2/MoSi2复合材料,研究了其物相组成、力学性能和室温断口形貌, 并分析了复合材料的强韧化机理。结果表明: 该复合材料主要由WSi2、MoSi2和SiC相组成, 还有微量的(Mo, W)5Si3相; 其中10%SiC-5%WSi2-85%MoSi2复合材料的综合力学性能最佳,其相对密度、抗弯强度、硬度和断裂韧度分别为93.81%, 251.7 MPa, 9.053 GPa和6.534 MPa·m1/2; 该复合材料的强韧化机制主要有细晶强韧化和弥散强化。
原位合成
力学性能
强韧化机理
SiC+WSi2/MoSi2 composite
in-situ synthesis
mechanical property
strengthening and toughening mechanism
Abstract
The SiC+WSi2/MoSi2 composites reinforced with different volume fractions of SiC and WSi2 particles were in-situ synthesized vaccum sintering using Mo, Si, W and graphite powders as raw materials. Then the phase composition, mechanical properties and fracture surface morphology at room temperature of the composites were studied. The strengthening and toughening mechanisms were analyzed. The results show that the composites consisted of WSi2, MoSi2 and SiC phases with less (Mo, W)5Si3 phase. The comprehensive mechanical properties of the 10vol%SiC-5vol%WSi2-85vol%MoSi2 composite were the best, and its density, flexural strength, hardness and fracture toughness were 93.81%, 251.7 MPa, 9.053 GPa and 6.534 MPa·m1/2, respectively. The strengthening and toughening mechanisms of the composites were the strengthening and toughening of fine grains and dispersion strengthening.
中图分类号 TF111
所属栏目
基金项目 湖南省自然科学基金资助项目(07JJ4017); 湖南科技大学2008年研究生创新基金资助项目(S080104)
收稿日期 2010/3/11
修改稿日期 2010/12/14
网络出版日期
作者单位点击查看
备注陈芳(1974-), 女, 湖南华容人, 工程师, 硕士研究生。
引用该论文: CHEN Fang,XU Jian-guang,HOU Zhou-fu,LUO Jun,TANG Guo-ning. Preparation of SiC+WSi2/MoSi2 Composites by In-situ Synthesis Vaccum Sintering and Their Properties[J]. Materials for mechancial engineering, 2011, 35(4): 61～64
陈芳,许剑光,侯周福,罗军,唐果宁. 真空烧结原位合成制备SiC+WSi2/MoSi2复合材料及其性能[J]. 机械工程材料, 2011, 35(4): 61～64
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】SINGH S, GODKHINDI M M, KRISHNARAO R V,et al. Synthesis of Si3N4-MoSi2 in-situ composite from mechanically activated (Mo+Si3N4) powders[J].Journal of Alloys and Compounds,2004,381:254-257.
【2】张荣军, 杨延清, 刘红梅, 等.SiCp/WSi2/MoSi2复合材料的室温力学性能[J].材料科学与工程学报,2008,26(2):101-103.
【3】侯周福, 许剑光, 唐果宁, 等.无压烧结CeO2-ZrO2-MoSi2复合材料及其力学性能研究[J].湖南科技大学学报: 自然科学版,2009,24(4):31-34.
【4】PETROVIC J J. Toughening strategies for MoSi2-based high temperature structural silicides[J].Intermetallics,2000,8:1175-1182.
【5】徐兵, 王德志, 吴壮志.MoSi2材料的强韧化研究进展[J].材料导报,2009,23(5):440-442.
【6】张来启,孙祖庆, 张跃, 等.原位SiC颗粒增强MoSi2基复合材料的显微组织和力学性能[J].金属学报,2001, 37(3): 325-331.
【7】王含英.SiCp/MoSi2原位反应高温热压复合工艺的研究[J].材料科学与工程学报, 2006, 24(4): 603-606.
【8】寇开昌, 杨延清, 艾云龙, 等.MoSi2-WSi2复合体系的自蔓延燃烧合成[J].稀有金属材料与工程,2000(3): 190-192.
【9】张厚安,刘心宇.WSi2/MoSi2复合粉末材料的机械合金化合成[J].稀有金属, 2001, 25(4): 282-285.
【10】ZAKERI M, YAZDANI-RAD R, ENAYATI M H,et al. Synthesis of MoSi2/Al2O3 nanocomposite by mechanical alloy-ing[J].Mater Science Engineer A,2006,430:185-188.
【11】张厚安, 刘心宇, 陈平, 等.WSi2/MoSi2复合材料的摩擦磨损特性[J].摩擦学学报, 2002, 33(3): 166-169.
【12】许剑光,侯周福,唐果宁.原位无压反应烧结制备SiC/MoSi2复合材料及其性能研究[J].矿冶工程, 2009, 29(4): 103-106.
【13】PENG Ke, YI Mao-zhong, RAN Li-ping, et al. Reactive hot pressing of SiC/MoSi2 nanocomposites[J].Communications of the American Ceramic Society,2007,90(11):3708-3711.
【14】刘红梅,杨延清, 吴中, 等.原位合成SiC/(Mo, W)Si2复合材料的组织与性能[J].西北工业大学学报,2007, 25(4): 512-515.
【15】艾云龙, 刘长虹, 左敦稳, 等.ZrO2/SiC-WSi2/MoSi2纳米复相陶瓷制备及增韧机制探讨[J].材料工程, 2004(1): 33-37.
【16】TSENG W J. Warping evolution of injection-molded ceramics[J].Materials Processing Technology,2000,102:14-18.
【2】张荣军, 杨延清, 刘红梅, 等.SiCp/WSi2/MoSi2复合材料的室温力学性能[J].材料科学与工程学报,2008,26(2):101-103.
【3】侯周福, 许剑光, 唐果宁, 等.无压烧结CeO2-ZrO2-MoSi2复合材料及其力学性能研究[J].湖南科技大学学报: 自然科学版,2009,24(4):31-34.
【4】PETROVIC J J. Toughening strategies for MoSi2-based high temperature structural silicides[J].Intermetallics,2000,8:1175-1182.
【5】徐兵, 王德志, 吴壮志.MoSi2材料的强韧化研究进展[J].材料导报,2009,23(5):440-442.
【6】张来启,孙祖庆, 张跃, 等.原位SiC颗粒增强MoSi2基复合材料的显微组织和力学性能[J].金属学报,2001, 37(3): 325-331.
【7】王含英.SiCp/MoSi2原位反应高温热压复合工艺的研究[J].材料科学与工程学报, 2006, 24(4): 603-606.
【8】寇开昌, 杨延清, 艾云龙, 等.MoSi2-WSi2复合体系的自蔓延燃烧合成[J].稀有金属材料与工程,2000(3): 190-192.
【9】张厚安,刘心宇.WSi2/MoSi2复合粉末材料的机械合金化合成[J].稀有金属, 2001, 25(4): 282-285.
【10】ZAKERI M, YAZDANI-RAD R, ENAYATI M H,et al. Synthesis of MoSi2/Al2O3 nanocomposite by mechanical alloy-ing[J].Mater Science Engineer A,2006,430:185-188.
【11】张厚安, 刘心宇, 陈平, 等.WSi2/MoSi2复合材料的摩擦磨损特性[J].摩擦学学报, 2002, 33(3): 166-169.
【12】许剑光,侯周福,唐果宁.原位无压反应烧结制备SiC/MoSi2复合材料及其性能研究[J].矿冶工程, 2009, 29(4): 103-106.
【13】PENG Ke, YI Mao-zhong, RAN Li-ping, et al. Reactive hot pressing of SiC/MoSi2 nanocomposites[J].Communications of the American Ceramic Society,2007,90(11):3708-3711.
【14】刘红梅,杨延清, 吴中, 等.原位合成SiC/(Mo, W)Si2复合材料的组织与性能[J].西北工业大学学报,2007, 25(4): 512-515.
【15】艾云龙, 刘长虹, 左敦稳, 等.ZrO2/SiC-WSi2/MoSi2纳米复相陶瓷制备及增韧机制探讨[J].材料工程, 2004(1): 33-37.
【16】TSENG W J. Warping evolution of injection-molded ceramics[J].Materials Processing Technology,2000,102:14-18.
相关信息
