Abstract: On the basis of the theory of controlled phase-changes of piezoceramics, high-temperature polarizing technology makes initial working temperature a little higher than Curie temperature of a sample, but the polarization voltage needed is greatly
Abstract: On the basis of the theory of controlled phase-changes of piezoceramics, high-temperature polarizing technology makes initial working temperature a little higher than Curie temperature of a sample, but the polarization voltage needed is greatly
文摘:压电陶瓷的高温极化是利用受控的场致有序化的顺电―铁电相变原理，使起始极化温度略高于样品的居里温度，但所需的极化电压大大低于常规极化，仅为1/10-1/5；选择较高的降温升压速率，可使极化趋于更加完全，具有常规极化工艺无可比拟的优越性。