Preparation processes of KNN lead-free piezoelectric ceramics
Journal Title: Science Paper Online - Year 2010, Vol 5, Issue 4
Abstract
Lead zirconium titanate (PZT) ceramics and PZT-based ternary-component ferroelectrics are high-performance piezoelectric materials, which are widely used in sensors, actuators and other electronic devices. From the viewpoint of environmental protection, it is desired to develop lead-free substitutes. (K, Na)NbO3 (KNN) based ceramics, a kind of lead-free piezoelectric materials, is one of the best candidates for PZT due to its high Curie temperature point and excellent piezoelectric properties. This paper summarized the new methods for fabricating KNN-based lead-free piezoelectric ceramics, including doping method, powder synthesis, template grain growth, sintering method, and so on.
Authors and Affiliations
Kongjun Zhu, Jinhao Qiu, Likui Su
Keywords
Related Articles
- EP ID EP84866
- DOI -
- Views 114
- Downloads 0
针刺结合组织工程学治疗周围神经<br /> 缺损的可能性探讨<br />
组织工程学是目前神经修复领域的前沿学科，但组织工程生物材料在体内往往不能满足完全修复的要求，主要原因是神经因子的缺乏、血液供应的不足；针刺能促进周围神经损伤的修复已被证明是确切的，许多研究发现，针刺在促进神经因子的分泌以...
Theoretical and experimental study of sound absorption<br /> for thin fiber layers<br /> <br />
Thin fiber layers such as fabrics and nonwovens have been used as the decorate materials in the room extensively. While it is also efficient at absorb sound and noise. Now, there are not special theory for thin fiber lay...
浮选柱多输入/多输出控制系统设计及应用
分析和阐述了浮选柱监控系统的控制要求和原理，采用多变量输入/多变量输出的设计思路，选用开物2000工业组态软件和PLC作为开发工具。通过球形浮子-超声波探测器测定浮选柱液位的高度，采用在线自调整参数的模糊控制、PID控制和充气量控制...
有机/无机复合材料吸附分离CO2的模拟研究
从烟道气中分离二氧化碳对于降低大气温室效应具有极其重要的意义。构造了由聚合物6FDA-1,5-NDA和多孔性二氧化硅组成的有机/无机复合材料吸附剂模型，并用GCMC方法模拟了烟道气[ n(CO2) : n(N2)＝15:85]在该材料中的吸附行为。结果表明，...
Research on residue of organochlorine pesticides in environment
The organochlorine pesticides used in the past still exist in the environment. Although the use of organochlorine pesticides has been banned for over 20 years, their residues can be abundant in environmental samples and...