欢迎登录材料期刊网

材料期刊网

高级检索

采用热压烧结法制备了不同纤维长度的SiCsf/LAS玻璃陶瓷复合材料,研究了该复合材料的微观结构、力学性能和在8.2~12.4GHz频率范围内的微波介电性能.结果表明:SiC纤维体积含量为1%时,随着SiC纤维长度的增加,SiCsf/LAS材料的抗弯强度先增加后降低.由于碳界面层的形成,SiCsf/LAS材料要比LAS材料具有更高的介电常数和损耗.当SiC短纤维的长度为4mm时,SiCsf/LAS复合材料的复介电常数具有最大的频散效应,分析认为这与碳界面层在复合材料中形成的电偶极子有关.

参考文献

[1] 裘慧广,沈强,王传彬,张联盟.微晶玻璃的种类、制备及其应用[J].中国建材科技,2005(01):15-19.
[2] Hsu J Y;Speyer R F .Comparison of the effects of titania and tantalum oxide nucleating agents on the crystallization of Li2O@Al2O3@6SiO2 glasses[J].Journal of the American Ceramic Society,1989,72(12):2334.
[3] Sambell R A J et al.Carbon fiber composites with ceramic and glass materials[J].Journal of Materials Science,1972,7(06):663.
[4] Sambell R A J et al.Carbon fiber composites with ceramic and glass matrices[J].Journal of Materials Science,1972,55(07):676.
[5] Brennan J J et al.SiC-whisker-reinforced glass-ceramic compesites:Laterfaces and properties[J].Journal of the American Ceramic Society,1972,75(05):1205.
[6] 郑开宏;高积强;王永兰 等.纤维长度取向对LAS基体力学性能的影响[J].无机材料学报,1997,12(02):143.
[7] Levitt S R .Feigh-strength graphite fibre/Lithium aluminosilicate composites[J].Journal of Materials Science,1973,8(06):793.
[8] Piggott M R .Theoretical estimation of fracture toughness of fibrous composites[J].Journal of Materials Science,1970,5(08):669.
[9] 赵东林,沈曾民.吸波Cf和SiCf的制备及其微波电磁特性[J].宇航材料工艺,2001(01):4-9.
[10] 郭景坤;杨涵美;张玉峰 .纤维补强微晶玻璃陶瓷复合材料性能设计[J].材料科学进展,1993,7(02):179.
[11] 罗发 .吸波材料的制备与性能研究[D].西安:西北工业大学,2001.
[12] John J Brennan .Fiber reinforced glass and glass ceramics[J].Composites Materials Design,1989,10(01):29.
[13] Liang Xue;Wei Cheng .A new SiC-whisker reinforced lithium aluminosilicate composite[J].Journal of the American Ceramic Society,1993,76(11):2785.
[14] Jen-Yanhsu;Speyeu R F.Interfacial phenomenology of SiC fiber reinforced Li2O@Al2O3@SiO2 glass ceramic composites[J].Journal of Materials Science,1992(27):374.
[15] Lancin M;Ponthieu C;Marhic C.Study of interphases in nicalon fiber-reinforced LAS glass matrix composite[J].Journal of Materials Science,1994(29):3759.
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%