One of the characteristics of {HEAD ~ the permanent magnet alloys} of {TAIL ~ this invention} is that as they have a lower Co content, they have a narrower two phase region which therefore need not be rapid cooled in other words, there does not accompany a risk of crack formation 
One of the characteristics of { HEAD ~ the permanent magnet alloys } of { TAIL ~ this invention } is that as they have a lower Co content , they have a narrower two phase region which therefore need not be rapid cooled in other words , there does not accompany a risk of crack formation
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