On the Crystallization of Terbium Aluminium Garnet
نویسندگان
چکیده
Attempts to grow terbium aluminium garnet (Tb3Al5O12, TAG) by the Czochralski method lead to crystals of millimeter scale. Larger crystals could not be obtained. DTA measurements within the binary system showed that TAG melts incongruently at 1840 ◦C. The perovskite (TbAlO3, TAP) with a congruent melting point of 1930 ◦C is the most stable phase in this system. The region for primary crystallization of TAP covers the chemical composition of TAG and suppresses the primary crystallization of the terbium aluminium garnet.
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