欢迎登录材料期刊网

材料期刊网

高级检索

利用粉末注射成形工艺制备碳化硼微孔喷嘴.研究了注射、脱脂和烧结工艺对碳化硼微孔喷嘴的微观形貌和成形质量的影响.结果表明,当模具温度为60℃、注射压力为100MPa、注射温度为175℃的情况下,微孔喷嘴得到良好的填充.脱脂后制品未发现裂纹和翘曲.随着烧结温度的升高,微孔喷嘴的致密度和线性收缩先增加后减小,表面粗糙度先减小后增加,在1950℃烧结后,微孔喷嘴的烧结性能和力学性能最好,致密度、线性收缩、维氏硬度和表面粗糙度值分别为97.1%,18.7%,3580HV和6.17μm.

参考文献

[1] 吴桢干.碳化硼的氧化特性研究[J].材料工程,1997(02):30.
[2] A. K. Sun;C. Subramanian;J. K. Sonber .Synthesis and consolidation of boron carbide: a review[J].International Materials Reviews,2010(1):4-40.
[3] 李国禄,姜信昌,温鸣,曹晓明,吕玉申.碳化硼颗粒增强Cu基复合材料的研究[J].材料工程,2001(08):32-35.
[4] Changrui Wang;Zhen Lu;Kaifeng Zhang.Microstructure, mechanical properties and sintering model of B4C nozzle with micro holes by powder injection molding[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2012:334-338.
[5] 江东亮;李龙土;欧阳世翕.无机非金属材料手册(上)[M].北京:化学工业出版社,2009:191-194.
[6] LU K;ZHU X J .Nickel-boron nanolayer-coated boron carbide pressureleess sintering[J].Journal of the American Ceramic Society,2009,92(07):1500-11505.
[7] Changxia Liu;Junlong Sun .Erosion behaviour of B_4C-based ceramic composites[J].CERAMICS INTERNATIONAL,2010(4):1297-1302.
[8] Hyukjae Lee;Robert F. Speyer .Pressureless Sintering of Boron Carbide[J].Journal of the American Ceramic Society,2003(9):1468-1473.
[9] 段柏华,林冰涛,曲选辉,何新波,程彤.4J42 Invar合金粉末注射成形工艺研究[J].材料工程,2007(08):37-40.
[10] Guo Shibo;Qu Xuanhui;He Xinbo;Zhou Ting;Duan Bohua .Powder injection molding of Ti-6Al-4V alloy[J].Journal of Materials Processing Technology,2006(3):310-314.
[11] V. Piotter;T. Mueller;K. Plewa;J. Prokop;H.-J. Ritzhaupt-Kleissl;J. Hausselt .Manufacturing of complex-shaped ceramic components by micropowder injection molding[J].The International Journal of Advanced Manufacturing Technology,2010(1/4):131-134.
[12] MASHHADI M;TAHERI-NASSAJ E;SGLAVO V M et al.Effect of Al addition on pressureless sintering of B4C[J].Ceramics International,2002,56(02):522-532.
[13] M. Medraj;R. Hammond;M.A. Parvez .High temperature neutron diffraction study of the Al_2O_3-Y_2O_3 system[J].Journal of the European Ceramic Society,2006(16):3515-3524.
[14] ZHANG H L;ONG N S;LAM Y C .Mold surface roughness effects on cavity filling of polymer[J].International Journal of Advanced Manufacturing Technology,2008,37(11-12):1105-1112.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%