铽铝石榴石的晶化研究
On the Crystallization of Terbium Aluminium Garnet
摘要：
通过直拉法生长铽铝石榴石（Tb3Al5O12，TAG）的尝试导致毫米级晶体。无法获得更大的晶体。DTA测量的二元系统内表明，TAG熔融不一致，在1840度。C.钙钛矿（TbAlO 3，TAP）具有1930 ℃的全等熔点。C是该体系中最稳定的相。TAP的初晶区覆盖了TAG的化学成分，抑制了铽铝石榴石的初晶。
英文摘要：
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 deg. C. The perovskite (TbAlO3, TAP) with a congruent melting point of 1930 deg. 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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