Co-Al系新磁石合金「Malcolloy」の特性におよぼすGe, Fe, Cu, SiおよびSb添加の影響について

DOI Web Site Web Site

書誌事項

タイトル別名
  • The Effect of the Additions of Germanium, Iron, Copper, Silicon and Antimony on the Properties of New Magnet Alloy “Malcolloy” in the System of Cobalt and Aluminium
  • Co-Alケイ シン ジシャク ゴウキン Malcolloy ノ トクセイ ニ オヨボス Ge , Fe , Cu , Si オヨビ Sb テンカ ノ エイキョウ ニ ツイテ
  • The Effect of the Additions of Germanium, Iron, Copper, Silicon and Antimony on the Properties of New Magnet Alloy “Malcolloy” in the System of Cobalt and Aluminium

この論文をさがす

抄録

Since the discovery of a new magnet alloy “Malcolly” having a high coercive force in the system of cobalt and aluminium, much work has been carried out so as to investigate the effects of additions of nickel, molybdenum, titanium, vanadium, chromium, tungsten and manganese on the properties of Malcolloy; the highest coercive force obtained in each system of alloys ranged over 1200∼1600 Oe. In this report, the effect of germanium, iron, copper, silicon and antimony additions on the properties of Co-Al alloys has been studied, with the result that the coercive force of the alloys increases with increasing germanium content and decreases with increasing contents of iron, copper, silicon and antimony. An alloy composed of 81.80%Co, 9.20%Al and 9.00%Ge shows a coercive force of 1600 Oe, a residual magnetic flux density of 4200 G and a maximum energy product of 2.20 MG·Oe when tempered at 500°C for 125 hr after water-quenching from 1310°C. These alloys consist of many ferromagnetic elongated particles about 500∼1500 Å in length which are precipitated in the matrix of a nearly non-magnetic β′ phase. Consequently, it may be concluded that the high coercivity of these alloys is mainly caused by the existence of fine particles of a single magnetic domain.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 34 (12), 1247-1252, 1970

    公益社団法人 日本金属学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ