发明名称 MANUFACTURE OF POLYCRYSTALLINE GARNET AND CORRESPONDING SINGLE CRYSTAL
摘要 A process for the manufacture of a polycrystalline garnet and to the corresponding monocrystal. The process comprises the following steps: (1) a solution containing the salts of the constituent cations of the garnet, in the proportions corresponding to the composition of the latter, is prepared; (2) corresponding hydroxides are co-precipitated by means of a base in order to obtain a co-hydroxide; (3) if appropriate, the co-hydroxide is left to age; (4) it is filtered off; (5) it is washed; (6) it is dried; and (7) it is then calcined at a temperature above the temperature for the formation of the desired garnet structure. The monocrystals obtained by Czochralski drawing of the polycrystalline garnets of the invention can be used, in particular, as substrates in magnetic bubble memory devices.
申请公布号 JPS5696727(A) 申请公布日期 1981.08.05
申请号 JP19800156046 申请日期 1980.11.07
申请人 RHONE POULENC IND 发明人 BERUNAARU BUUDOO;JIYORUJIYU NIYURI
分类号 C01B13/36;C01F17/00;C01G15/00;C30B15/00;C30B29/28;H01F1/34 主分类号 C01B13/36
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