Basics of Piezoelectric Ceramics

• Influence of microstructure and piezoelectric properties of PZT materials

  The temperature of the lead oxide volatilization hydrothermally synthesized PZT piezo ceramicpowder is 944.71°C, and the reaction temperature between the particles is 811.26° C; the reaction temperature between the solid phase synthetic PZT powder particles is 1243.47 ° C, and the volatilization tem

  Basics of Piezoelectric Ceramics October 15, 2018
• Problems with PZT piezoelectric ceramics powder (2)

  The first is the separation of nucleation and growth process,which is promoting nucleation and controlling growth,to ensure that the nucleation rate is greater than the growth rate, that is, ensuring that the PZT materials piezo ceramic powder precursor is formed under a large degree of supercooling

  Basics of Piezoelectric Ceramics October 14, 2018
• Problems with PZT piezoelectric ceramics powder(1)

  PZT piezoelectric ceramics have been the focus of attention and research since the 1960s due to its high curie temperature, strong piezoelectricity, easy doping modification and good stability. In the field of piezoelectric ceramics. In terms of the preparation process of PZT piezoelectric ceramics,

  Basics of Piezoelectric Ceramics October 14, 2018
• grinding and polishing technology of piezo ceramic transducer

  The preparation has processing methods, processing difficulties,grinding and polishing of piezo ceramic transducer substrates. According to the principle of single-side grinding,double-side grinding and characteristics of grinding and polishing, the piezo ceramic substrates was efficiently thinned .

  Basics of Piezoelectric Ceramics October 12, 2018
• Single-side ground alumina piezo ceramic substrate(2)

  When the piezo ceramic tile is positioned by the ceramic ring, the surface material of the alumina piezo ceramic after single-side grinding decreases with the decreasing of the hardness of the grinding disk, while the copper abrasive disk obtains the lowest surface roughness Ra.The quality of the gr

  Basics of Piezoelectric Ceramics October 10, 2018
• Solution for yellowing of alumina piezo ceramic

  In the processing environment of double-side grinding of alumina Pzt piezo ceramic ring substrate, it is difficult to avoid the influence of iron ions, so that yellow iron oxide adsorbs and covers the surface of the substrate, and the surface of the substrate is liable to be yellow. Considering that

  Basics of Piezoelectric Ceramics October 09, 2018
• the root cause of the yellowing of the surface of alumina piezo ceramic

  After the alumina piezo ceramic substrate is ground by different abrasives, the surface has different degrees of yellowing. This section uses EDS spectrum to detect the types of piezo elements before and after the surface of the alumina piezo ceramic substrate, and then explores the possible surface

  Basics of Piezoelectric Ceramics October 09, 2018
• What’s the production process of piezoelectric ceramic

  The technological process of piezoelectric ceramic is as follows: Ingredients - mixing and grinding - pre-sintering - secondary grinding - granulation - molding - plasticizing - sintering into porcelain - shape processing - being electrode - high pressure polarization --Aging test.1. the ingredients

  Basics of Piezoelectric Ceramics September 17, 2018
• The main structure of piezoelectric ceramics

  There are three main types of piezoelectric ceramics: barium titanate (BaTiO3), raw materials are titanium dioxide, barium carbonate, barium carbonate, etc.; lead zirconate titanate (PbZrTiO3), raw materials are titanium dioxide, zirconium oxide, lead oxide, barium carbonate, antimony oxide, antimon

  Basics of Piezoelectric Ceramics September 16, 2018
• The basic principle of piezoelectric ceramics material

  Domain:Generally, the directions of spontaneous polarization of ferroelectrics are different, but in a small area, the spontaneous polarization directions of the respective unit cells are the same, and this small area is called a ferroelectric domain. The boundary wall between the two domains is cal

  Basics of Piezoelectric Ceramics September 10, 2018