纳米Fe<sub>3</sub>O<sub>4</sub>水基磁悬液的沉淀浓度测试与型式检验性能试验

纳米Fe₃O₄水基磁悬液的沉淀浓度测试与型式检验性能试验

基金项目:

安徽省质量技术监督局科技支撑资助项目（13zj370022）

详细信息

摘要: 利用化学方法制备了两种不同形状与大小的纳米Fe₃O₄，并制成水基磁悬液，用X射线衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）等分析测试手段对其进行了表征。通过对制备的纳米Fe₃O₄水基磁悬液沉淀浓度测试以及型式检验性能试验发现该水基磁悬液静置30 min后，梨形沉淀管内几乎没有发现明显的沉淀；型式检验性能满足JB/T 6063-2006《无损检测磁粉检测用材料》标准要求。试验结果说明，现行的磁悬液沉淀浓度测定方法需要完善。
- 纳米Fe₃O₄ /
- 水基磁悬液 /
- 沉淀浓度 /
- 型式检验
Abstract: Fe₃O₄ magnetic fluids of two different shapes of sphere and sheet were prepared by chemical method. The samples were characterized by XRD, TEM, SEM. Studies on the concentration by precipitation and type inspection performance of nano-Fe₃O₄ water-based magnetic fluid were made, and the results showed that no obviously precipitation was found in the pear shaped sedimentation tube after stabling 30min. The type inspection performance was consistent with JB/T6063-2006 Non-destructive testing-Materials for magnetic particle testing. Test result showed the current method of measuring the concentration by precipitation needed further improvement.
- nano-Fe₃O₄ /
- magnetic fluid /
- concentration of precipitation /
- type inspection performance

[1]	拓凌玺,李飞. 磁悬液浓度测定装置的改进[J]. 无损检测, 2016, 38(12):59-61.
[2]	史红兵,洪勇,舒霞.纳米Fe₃O₄磁流体对人工裂纹缺陷试块的磁粉检测研究[J].无损探伤,2016(2):25-26.
[3]	洪勇,史红兵,沈沆.不同水基磁悬液对不同厚度涂覆层近表面裂纹试块的磁粉探伤研究[J].无损检测,2016,38(5):23-25.
[4]	洪勇,史红兵,吴玉程.纳米Fe₃O₄磁悬液应用于磁粉无损检测的探讨[J].化学工程与设备, 2015(8):223-225.