以Cu-Fe-Cr原位复合丝材萃取得微米级、亚微米级的Fe-Cr纤维,并研究了变形量、长期储存条件和热处理对Fe-Cr纤维样品结构和磁性能的影响. 采用X射线衍射(XRD)和扫描电镜(SEM)分析了样品的结构和形貌,采用振动样品磁强计(VSM)测试了样品的磁性,并利用热重-差热分析(TGA-DTA)比较了不同变形量的Fe-Cr纤维在空气中的热稳定性. 结果表明:随着变形量的增大和Fe-Cr纤维的细化,纤维的饱和磁矩基本恒定(约140A·m2/kg),而剩磁和矫顽力则逐渐增加;Fe-Cr纤维在无水乙醇和空气中储存一年以上,磁性基本保持不变;Fe-Cr纤维在空气中经300℃以上加热1h后,逐渐由铁磁性的α-(Fe,Cr) (BCC结构)固溶体转变为顺磁性的(Fe,Cr)2O3(六角晶系),饱和磁化强度显著下降;且随着变形量的增大,较细Fe-Cr纤维的热稳定性较差.
参考文献
| [1] | 邢丽英.隐身材料[M].北京:化学工业出版社,2004 |
| [2] | 邓龙江;谢建良;梁迪飞 等.磁性材料在RAM中的应用及进展[J].功能材料,1999,30(02):118-121. |
| [3] | 赵振声,张秀成,聂彦,何华辉.多晶铁纤维吸波材料的微波磁性研究[J].磁性材料及器件,2000(01):18-20,38. |
| [4] | 李小莉,闫翠芬,张晓云,贾虎生,杨东方,许并社.纳米晶铁纤维微波吸收性能研究[J].材料导报,2004(z1):115-117. |
| [5] | 刘爱祥,茹淼焱,孟凡君,张立成,吴秀荣,张维咸,张其震,周其凤.多晶铁纤维的合成与微波吸收性能的研究[J].无机化学学报,2004(03):358-362. |
| [6] | Mingzhong Wu;Zhensheng Zhao;Huahui He .Preparation and microwave characteristics of magnetic iron fibers[J].Journal of Magnetism and Magnetic Materials,2000(1/3):89-92. |
| [7] | H.G.Suzukit,J.Ma,K.Mihara,S.Sakai,S.Sun.Effect of alloying elements on mechanical properties in Cu-15%Cr in-situ composites[J].中国有色金属学会会刊(英文版),2004(02):284-290. |
| [8] | K.L. Lee .Effect of oxidation on the creep behaviour of copper-chromium in situ composite[J].Composites, Part A. Applied science and manufacturing,2003(12):1235-1244. |
| [9] | Leprince-Wang Y.;Han K.;Huang Y.;Yu-Zhang K. .Microstructure in Cu-Nb microcomposites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):214-223. |
| [10] | Kim Y S;Song J S;Hong S I .Thermal-mechanical processing and properties of Cu-Fe-Cr microcompo-sites[J].Journal of Materials Processing Technology,2002,130-131:278-282. |
| [11] | Sinclair, CW;Weatherly, GC;Embury, JD .Basic aspects of the co-deformation of bcc/fcc materials[J].Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing,1999(1):90-98. |
| [12] | Heringhaus F.;Schneider-Muntau HJ.;Gottstein G. .Analytical modeling of the electrical conductivity of metal matrix composites: application to Ag-Cu and Cu-Nb[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):9-20. |
| [13] | SHOUJIN SUN .Structures and Residual Stresses of Cr Fibers in Cu-15Cr In-Situ Composites[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(5):1225-1232. |
| [14] | Spitzig W A;Go Y S;Verhoeven J D et al.Effectof temperature on the strength and conductivity of a deformation processed Cu-20%Fe composite[J].Journal of Materials Science,1992,27:2005-2011. |
| [15] | 涂国荣,周晓华,刘翔峰,杜光旭,党海军,郝文析.纳米絮状铁纤维的制备及性能测定[J].精细化工,2005(02):91-94. |
| [16] | 张健,张文彦,杨延安,周颖刚,李建平,杨照玲,奚正平.奥氏体不锈钢纤维化过程磁性变化研究[J].稀有金属材料与工程,2003(06):464-467. |
| [17] | 彭伟才,陈康华,李晶儡,黄兰萍.随机分布Fe纳米线复合材料的吸波性能[J].中国有色金属学报,2005(02):288-294. |
| [18] | Li XG.;Takahashi S.;Ohsaki K.;Chiba A. .PREPARATION, OXIDATION AND MAGNETIC PROPERTIES OF FE-CR ULTRAFINE POWDERS BY HYDROGEN PLASMA-METAL REACTION[J].Journal of Magnetism and Magnetic Materials,1997(1/2):101-108. |
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：
-
10%
-
20%
-
30%
-
40%
-
50%