THE RELATTON BETWEEN THE TEMPERING EFFECTS AND THE INTRINSIC COERCIVITY OF SINTERED SmCo₅ ALLOY AT 750℃

来源期刊：中国有色金属学报(英文版)1992年第1期

论文作者：Pan Shuming

文章页码：73 - 76

Key words：sintered alloy, tempering effect, intrinsic coercivity, SmCo₅

Abstract: The relation between the tempering effects of sinterd SmCos alloy at 750℃and its intrinsic coercivity (i^HC) has been studied by the use of photoelectron energy spectrum, X-ray diffraction and high-voltage electrop microscope. The result is that the cause of i^HC dropping seriously for sintered SmCo₅ alloy tempered at 750℃ is not the eutectoid decomposition of SmCo₅ and the increase of oxygen. In fact, i^HC dropping is caused by that some defect-rich regions in Sm₂Co₁₇ decomposed form SmC0₅ from nucleation centers in reversed magnetization course.