亚微米级铁素体纤维的制备  

FABRICATION OF SUB-MICROMETER FERRITE FIBERS

作　　者：孙世清[1] 刘宗茂[1] 毛磊[1] 

机构地区：[1]河北科技大学金属材料系,河北石家庄050054

出　　处：《河北冶金》2003年第6期19-21,共3页Hebei Metallurgy

基　　金：河北省自然科学基金资助项目(503372);河北科技大学科研基金项目。

摘　　要：采用浓硝酸将Cu-16Fe-2Cr原位复合丝材的铜基体选择溶解后得到了铁素体纤维。实验结果表明:当丝材质量与浓硝酸容积之比(质容比)约为220g/L时,可将铜基体溶解完全,获得铁素体纤维。通过SME和TEM测量了铁素体纤维尺寸。随着复合丝材变形量增大,纤维的收得率逐渐下降,当总变形量η=9.21时,纤维的平均直径达到0.7μm。The ferrite fibers were extracted from Cu-16Fe-2Cr in situ composite wires by use of a selective etching technique, where the Cu matrix dissolved by nitric acid. The ferrite fibers without copper matrix can be prepared when the ratio of wire mass to nitric acid volume (ratio of mass to volume) is 220 g / L. The diameter of Fiber was measured by using of SEM and TEM. Fiber productivity decreases gradually with increasing amounts of wire deformation, and the average fiber diameter is about 0.7μm atη=9.21.

关 键 词：亚微米纤维 铁素体 纤维收得率 质容比 金属复合材料 制备 

分 类 号：TB331[一般工业技术—材料科学与工程]