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of a.The Al content was in middle but a little closed to that of a. REFERENCES 1 Banerjee D,Shelton C G.Acta Metall.,1988;36:125 2 Margolin H,Levine E.Met.Trans.,1977;8A:373 3 Rhodes C G,Paton N E.Met.Trans.,1979:10A:209 4 Rhodes C G,Williams J C.Met.Trans.,1975;6A:1670 5 Banerjee D,Arunachalam V S.Acta Metall.,1981;29:1685 6 Moody N R,Greulich F A.Met.Trans.,1984;15A:1955 7 Rhodes C G,Paton N E.Met.Trans.,1979;10A:1753 1 8 Chenu F,Servant C.Scri.Metall.,1979;13:951 、 9 Rhodes C G,Williams J C.Met.Trans.,1975;6A:2103 10 Banerjee D.Met.Trans.,1982;13A:681 11 Edington J W.Practical Electron Microscopy in Materials Science,Van Nostrand Company,1976,77 12 Paton N E,Backofen W A,Trans.of AIME,1969;245:1369 13 Paton N E,Backofen W A.Met.Trans.,1970;1A(1):2839 The Synthesis of Rare Earth Iron Boron Alloy Rare earth-iron-boron is a super high energy magnet.This method is to use rare earth chloride as starting material rather than the more difficult to make pure rare carth metal and the rare earth-iron-boron alloy is formed by metal thermal reduction in the presence of iron and ferro-boron powders.The best ield of the alloy powder is up to 98%.The magnetic properties are excellent and stable.Comparing w ith traditional melting technique,the cost of the starti- ng material decreascs 1/2--1/3.This technique can be used in production. xx73xxxxxxxxxxx77x77xx7xi 574。 、 , · , , · · ” · , , 。 儿 。 , , 。 ” · , , 一 , , · 夕· , , , · · , , ‘ · , , · · · , 。 一 , , 一 , , , , , 一 , 一 , , · 万 · · , 一 一 · 卫 一 一 、 一 一 从 、 ‘ 认 , 。 。 · ‘。 一 , , 厂一 ·
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