| 纳米粉改性Ti(C,N)基金属陶瓷制备的研究 |
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| 引用本文： | 范畴,熊惟皓,魏京,严明双. 纳米粉改性Ti(C,N)基金属陶瓷制备的研究[J]. 材料导报, 2005, 19(12): 124-126 |
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| 作者姓名： | 范畴 熊惟皓 魏京 严明双 |
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| 作者单位： | 华中科技大学模具技术国家重点实验室,武汉,430074;华中科技大学模具技术国家重点实验室,武汉,430074;华中科技大学模具技术国家重点实验室,武汉,430074;华中科技大学模具技术国家重点实验室,武汉,430074 |
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| 摘 要： | 用三点弯曲实验和显微分析评价了在基体中添加纳米粉和晶粒长大抑制剂对制备纳米粉改性Ti(C,N)基金属陶瓷的力学性能和微观组织的影响.实验结果表明:基体中添加纳米粉含量为5wt%,单向冷模压制压力控制在110～150MPa,最高烧结温度的保温时间为10min时,烧结坯的抗弯强度(TRS)达到2112 MPa,洛氏硬度(HRA)为90;晶粒长大抑制剂(1wt%TaC 0.5wt%Cr3C2)能较好地抑制晶粒长大.
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| 关 键 词： | Ti(C N)基金属陶瓷 纳米粉改性 抗弯强度 微观组织 |
Processing of Modifying Ti(C, N)-based Cermets by Nano-powder |
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| FAN Chou,XIONG Weihao,WEI Jing,YAN Mingshuang. Processing of Modifying Ti(C, N)-based Cermets by Nano-powder[J]. Materials Review, 2005, 19(12): 124-126 |
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| Authors: | FAN Chou XIONG Weihao WEI Jing YAN Mingshuang |
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| Abstract: | The influence of nano-powder content in matrix and grain growth inhibitors on mechanical proper- ties and microstructure of modifying Ti(C,N)-based cermets by nano-powder have been evaluated,using the means of three-point bending test and micrographic analysis.The results show that the transverse rupture strength(TRS)rea- ches 2112 MPa and Rockwell hardness(HRA)is 90 when the nano-powder content in matrix is 5 wt%,moderate com- pact pressing ranging is from 110 MPa to 150 MPa,holding at highest sintering temperature is 10 min.The grain growth can been inhibited using the grain growth inhibitors(1wt%TaC+0.5wt%Cr_3C_2). |
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| Keywords: | Ti(C N)-based cermets nano-powder TRS microstructure |
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