Method of making ternary piezoelectric crystals
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United States of America Patent
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Dec 3, 2013
Grant Date -
Dec 22, 2011
app pub date -
May 16, 2011
filing date -
Jan 31, 2008
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Abstract
A ternary single crystal relaxor piezoelectric of PMN-PZ-PT grown from a novel melt using the Vertical Bridgeman method. The ternary single crystals are characterized by a Curie temperature, Tc, of at least 150° C. and a rhombohedral to tetragonal phase transition temperature, Trt, of at least about 110° C. The ternary crystals further exhibit a piezoelectric coefficient, d33, in the range of at least about 1200-2000 pC/N.
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