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本工作之目的是为了解晶体组分及其在生长过程中的变化,以及原料配比的改变对晶体组分的影响。前人曾在 YA 系晶体组分测定方面做过许多工作,但有的手续较繁,有的误差较大。作者找到了络合滴定稀土时,用磺基水杨酸掩蔽铝的最佳 pH 范围(8.40～9.10),避免了稀土与铝的分离,用本法测定既简便、又准确。当铝:稀土(原子比,下同)=10:1时仍能得到满意的结果。铝酸钇晶体的测定结果表明:当原料中 Al:Re=1:1或富钇(2%
The purpose of this work is to understand the crystal components and their changes in the growth process, as well as changes in the ratio of raw materials on the crystal composition. The predecessors have done a lot of work in the determination of the YA Department of crystal composition, but some more complicated procedures, and some errors. The authors found that when complexed with titration rare earth, the optimal pH range (8.40 ~ 9.10) was masked with sulfosalicylic acid to avoid the separation of rare earth and aluminum. The determination by this method was simple and accurate. When aluminum: rare earth (atomic ratio, the same below) = 10: 1 can still get satisfactory results. The results of the determination of yttrium aluminate crystals show that when the Al: Re = 1: 1 or Yttrium-rich (2%