最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
放電等離子燒結(jié)NdFeB磁體的富稀土相與矯頑力
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學(xué)基金 (50371002)；江西師大博士啟動基金（1886）；江西省教育廳2008年重點科技項目（2284）


RE-rich Phase and Coercivity of SPSed NdFeB Magnets
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    利用放電等離子燒結(jié)技術(shù) (SPS) 制備新型燒結(jié)磁體SPS NdFeB。為了更好理解磁體的磁性能，尤其是矯頑力和微組織關(guān)系的機理，本研究以熱處理前后的SPS NdFeB為研究對象，利用掃描電鏡 (SEM)、高分辨透射電鏡(HRTEM)、X射線能譜儀，B-H回線儀分別對磁體的顯微組織和高分辨透射電鏡像組織和磁性能進行了系統(tǒng)研究。結(jié)果表明，經(jīng)過熱處理后，磁體矯頑力明顯提高，富稀土相的鐵原子與稀土原子比Fe/Re明顯下降；富稀土相結(jié)構(gòu)形態(tài)發(fā)生明顯變化，由熱處理前的非晶態(tài)變?yōu)闊崽幚砗蟮木B(tài)

    Abstract:

    A novel Nd-Fe-B based permanent magnets named as SPSed NdFeB magnets were prepared by spark plasma sintering (SPS) technique. In order to better comprehend the mechanism of the changes in magnetic properties of the SPSed NdFeB magnets treated in an optimized process, the effects of the heat treatment process on the microstructure of magnets were systematically studied by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDXS)，high-resolution transmission electron microscopy (HRTEM), respectively. The results show that the increase in coercivity of the magnet is related to the obvious decrease in ratio of Fe to RE (Fe/Re) in Re-rich phase，and the RE-rich phase transforms to crystalline state from amorphous state after heat treatment process.

    參考文獻
    相似文獻
    引證文獻
引用本文

王公平,李文波,劉衛(wèi)強,岳 明,張久興.放電等離子燒結(jié)NdFeB磁體的富稀土相與矯頑力[J].稀有金屬材料與工程,2012,41(6):1116~1118.[Wang Gongping, Li Wenbo, Liu Weiqiang, Yue Ming, Zhang Jiuxing. RE-rich Phase and Coercivity of SPSed NdFeB Magnets[J]. Rare Metal Materials and Engineering,2012,41(6):1116~1118.]
DOI：[doi]

復(fù)制
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2011-06-11
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: