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1. 发明公开

KR1020130090696A 피지엔-피지티계 압전 세라믹 조성물 및 그 제조방법 有权
标题翻译： PZN-PZT压电陶瓷及其制造方法
公开(公告)号：KR1020130090696A
公开(公告)日：2013-08-14
申请号：KR1020120012020
申请日：2012-02-06
申请人： 경원산업 주식회사
发明人： 김경원 , 정현진 , 정광현 , 김관수 , 김수찬
IPC分类号： C04B35/491 , C04B35/495 , C04B35/64 , H01L41/187
CPC分类号： C04B35/491 , C04B35/4521 , C04B35/495 , C04B35/64 , C04B2235/3227 , C04B2235/3244 , C04B2235/3251 , C04B2235/3298 , H01L41/1876
摘要： PURPOSE: A PZN-PZT piezoelectric ceramic composition is provided to have a high mechanical quality factor (Qm) of a piezoelectric ceramic with maintaining a high dielectric constant (K33), an electromechanical coupling coefficient (kp) and a piezo-electric constant (d33) by including a specific additives like CuO to the optimal range. CONSTITUTION: A PZN-PZT piezoelectric ceramic composition is indicated as the chemical formula: 0.2 Pb (Zn1/3Nb2/3)O3-0.8 Pb (Zr,Ti)O3+xBiMnO3+yLaMnO3+zCuO; and the x+y is 0.5-1.5wt%, based on the total weight of the composition and the z is 0.1-0.5wt%. A manufacture method of 0.2 Pb (Zn1/3Nb2/3)O3-0.8 Pb (Zr,Ti)O3 piezoelectric ceramic composition comprises the following steps. 0.2 Pb (Zn1/3Nb2/3)O3-0.8 Pb (Zr,Ti)O3 is mixed, pulverized and calcinated at 800-850°C. The calcinated 0.2 Pb (Zn1/3Nb2/3)O3-0.8 Pb (Zr,Ti)O3 compound is reground. BiMnO3 and LaMnO3 are mixed, pulverized and calcinated at 700°C and at 1000°C. The calcinated BiMnO3 compound and the calcinated LaMnO3 compound are reground. One or more of the BiMnO3, the LaMnO3 and the CuO is mixed with the 0.2 Pb (Zn1/3Nb2/3)O3-0.8 Pb (Zr,Ti)O3 compound and pulverized. The mixed compound of the 0.2 Pb (Zn1/3Nb2/3)O3-0.8 Pb (Zr,Ti)O3 is sintered at 880-920°C after molded with the high pressure.
摘要翻译：目的：提供PZN-PZT压电陶瓷组合物，以具有保持高介电常数（K33），机电耦合系数（kp）和压电常数（d33）的压电陶瓷的高机械品质因数（Qm））通过将特定的添加剂如CuO包含在最佳范围内。构成：PZN-PZT压电陶瓷组合物以化学式表示：0.2 Pb（Zn1 / 3Nb2 / 3）O3-0.8 Pb（Zr，Ti）O3 + xBiMnO3 + yLaMnO3 + zCuO; 并且x + y为0.5-1.5重量％，基于组合物的总重量，z为0.1-0.5重量％。 0.2 Pb（Zn1 / 3Nb2 / 3）O3-0.8 Pb（Zr，Ti）O3压电陶瓷组合物的制造方法包括以下步骤。将0.2 Pb（Zn1 / 3Nb2 / 3）O3-0.8 Pb（Zr，Ti）O3在800-850℃下混合，粉碎和煅烧。煅烧后的0.2 Pb（Zn1 / 3Nb2 / 3）O3-0.8 Pb（Zr，Ti）O3化合物重掺杂。将BiMnO 3和LaMnO 3在700℃和1000℃下混合，粉碎和煅烧。煅烧的BiMnO3化合物和煅烧的LaMnO 3化合物是重掺杂的。将一种或多种BiMnO3，LaMnO3和CuO与0.2 Pb（Zn1 / 3Nb2 / 3）O3-0.8 Pb（Zr，Ti）O3化合物混合并粉碎。 0.2 Pb（Zn1 / 3Nb2 / 3）O3-0.8 Pb（Zr，Ti）O3的混合化合物在高压成型后在880-920℃下烧结。

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