Iron-nickel alloy shadow mask for a color cathode-

专利名称：Iron-nickel alloy shadow mask for a color

cathode-ray tube

发明人：Hua-Sou Tong申请号：US07/129369申请日：19871130公开号：US04751424A公开日：19880614

摘要：A shadow mask for a color cathode-ray tube has a plurality of aperturestherethrough. The shadow mask is made from an improved iron- nickel alloy sheetconsisting essentially of the following composition limits in weight percent: C≦0.04,MN≦0.1, Si≦0.04, P. ltoreq.0. 012, S≦0.012, Ni 32-39, Al≦0.08, Y≦0.6 and the balance being Feand impurities unavoidably coming into the iron- nickel alloy during the course of theproduction thereof. An oxide layer comprising a major proportion of maghemite (&ggr;-Fe.sub.2 O.sub.3) and magnetite (Fe.sub.3 O.sub.4), and a minor proportion of hematite(&agr;- Fe.sub.2 O.sub.3) and yttria (Y.sub.2 O.sub.3) is formed on the iron- nickel alloysheet and stabilized and bonded thereto by an oxide of yttrium (Y.sub.2 O.sub.3)dispersed at interstitial sites throughout the lattice of the alloy sheet.

申请人：RCA LICENSING CORPORATION

代理人：Eugene M. Whitacre,Dennis H. Irlbeck,Vincent J. Coughlin, Jr.

更多信息请下载全文后查看