Abstract
Single crystals of perovskyte-type Pb(ZrxTi1-x)O3 were grown by flux method using a mixture of PbO-H3BO3-Pb(Zr0.52Ti0.48)O3. The following results were obtained.(1) The largest single crystal (2.5mm×2.5mm×1mm) was obtained from the melt with the composition of Pb(Zr0.52Ti0.48)O3: flux=25:75 (weight percent), where the composition of flux is; PbO: H3BO3=50:50 (mol percent).(2) Single crystal Pb(Zr0.25Ti0.75)O3 having the shape of square pyramid was usually obtained from the center of the crucible.(3) There was no difference in crystal size between the cooling rate of 25°C/hr and that of 50°C/hr for crystal growth from the melt at 1000-1100°C.(4) The region of the composition for obtaining single crystals of Pb(ZrxTi1-x)O3 was respective 40≤PbO≤63, 12≤H3BO3≤22 and 20≤Pb(Zr0.52Ti0.48)O3≤45 at weight percent in the PbO-H3BO3-Pb(Zr0.52Ti0.48)O3 system.
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