摘要 |
A method of making a single crystals of lead magnesium niobate-lead titanate (PMN-PT). The method includes providing a flat-bottomed iridium crucible containing PMN-PT starting material, and placing the crucible into a vertica l Bridgman furnace having at least two temperature zones, which is subsequentl y pressured with an inert gas. The crucible then descends into the temperature zones of the vertical Bridgman furnace. The temperature zones of the vertica l Bridgman furnace include a first temperature zone having a temperature highe r than a melting temperature of the PMN-PT material and a second temperature zone having a temperature less than the melting temperature of the PMN-PT material. The single crystals of PMN-PT prepared using the above-described method exhibits a [110] crystal orientation and may be used in electroacoust ic transducers. The electroacoustic transducers are useful in devices that dete ct or generate acoustic waves.
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