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鈮酸鈉鉀鋯鈦酸鋇系無鉛壓電陶瓷組合物

Summary

The present invention provides a novel potassium-sodium niobate zirconium barium titanate series leadless piezoelectric ceramic composition which comprises perovskite type piezoelectrics K<1-x>NaNbO3 and strong ferroelectrics Ba(Ti<1-y>Zr)O3, the general formula is represented by (1-z)(K<1-x>Na)NbO3-zBa(Ti<1-y>Zr)O3, in the formula 0Na)NbO3-zBa(Ti<1-y> Zr)O3((100-a)mol%+MO(amol%). The optimal value d33 of the system piezoelectric ceramic composition can up to above 230pC/N, kp can up to above 48%, and the kt can up to above 47%, has the advantages of good compactness, high Curie temperature, good thermal stability, being prepared with the conventional piezoelectric ceramic preparing technique and has practicability.

Supplementary Information

Inventor: Dunmin Lin | Jianrong Guo | Lihua Chenwang
Priority Number: CN101239824B
IPC Current: C04B0035495 | H01L0041187
Assignee Applicant: The Hong Kong Polytechnic University
Title: Sodium potassium niobate barium zirconate titanate series lead-free piezoelectric ceramic composition | Potassium niobate zirconium titanium acid barium series lead-free piezoelectric ceramic composition
Usefulness: Sodium potassium niobate barium zirconate titanate series lead-free piezoelectric ceramic composition | Potassium niobate zirconium titanium acid barium series lead-free piezoelectric ceramic composition
Summary: For preparing potassium-sodium niobate-barium zirconate titanate lead-free piezoelectric ceramic compound.

Industry

Chemical/Material

Sub Category

Chemical/Material Application

Others

Dunmin LIN
Kin Wing KWOK
Helen Lai Wa CHAN

Country/Region

Mainland China