Article List

• what's the polarization method of piezoelectric ceramic

  (1)Oil bath polarization methodThe oil bath polarization method is a method in which a product such as methyl silicone oil is used as an insulating medium to polarize a product under a certain polarization electric field, temperature and time. Due to the wide temperature range, high dielectric stren

  Basics of Piezoelectric Ceramics September 13, 2018
• What’s the polarization of piezoelectric ceramics

  Whether the polarization process of piezo ceramic is sufficient or not has a great influence on the material properties. Therefore, it is necessary to reasonably select the polarization conditions, the polarization electric field, the polarization temperature and the polarization time, which are ref

  Basics of Piezoelectric Ceramics September 13, 2018
• Research on the radial vibration of piezoelectric hollow cylinder with radial polarization(2)

  Piezoelectric ceramic round tube is a commonly used for the acoustic transducer unit. It has simple structure, stable performance, convenient layout, uniform directivity along the radial direction and high sensitivity. Therefore, it is mostly used in the fields of underwater acoustics, geology and p

  Basics of Piezoelectric Ceramics September 12, 2018
• Research on the radial vibration of piezoelectric hollow cylinder with radial polarization

  Combined with piezoelectric plane strain and three-dimensional piezoelasticity theory, the vibration characteristics of a piezoelectric ceramic thick hollow cylinder with radial polarization has been studied, and closed-type solutions are obtained for the mechanical radial displacement and electric

  Basics of Piezoelectric Ceramics September 09, 2018
• surface discoloration reasons of piezo ceramic elements substrate(2)

  The surface of the original piezoelectric discs sensor substrate is pure white, and the surface color is yellow. There are two possibilities, First, since the surface material of the alumina piezo ceramic is yellowe by chemical corrosion, the chemical property of the alumina is stable, and it is dif

  Basics of Piezoelectric Ceramics September 03, 2018
• surface discoloration reasons of piezo ceramic elements substrate(1)

  Experiments on the high efficiency thinning and ultra-smooth polishing of alumina piezo ceramic substrates were carried out for processing methods, abrasives and processing parameters.The mechanism of influencing factor was further studied through process experiments, and the processing paramete

  Basics of Piezoelectric Ceramics September 03, 2018
• Research status of alumina piezo ceramic grinding and polishing technology

  The comparison test between A120 ordinary grinding and ultrasonic grinding was carried out under the different vibration modes. The primary and secondary order of the influence of various grinding process parameters on the surface roughness of the workpiece was studied, and the workpiece rotation sp

  Basics of Piezoelectric Ceramics September 02, 2018
• Difficulties in the processing of alumina ceramic substrates

  Alumina piezo ceramics are often formed by hot sintering. Since sintering usually causes deformation and shrinkage, it is generally required. To ensure the dimensional accuracy and shape accuracy of the workpiece. However, due to the general elasticity of alumina piezo ceramics materials.The modulus

  Basics of Piezoelectric Ceramics September 02, 2018
• Common processing method of alumina piezo ceramic substrates

  Alumina acoustic piezoelectric tubes materials are difficult to process materials, with the high hardness, brittleness including grinding, cutting, laser heating, high pressure abrasive water processing and ultrasonic processing. Grinding: Alumina piezo ceramics have the high hardness, so gr

  Basics of Piezoelectric Ceramics August 31, 2018
• technical process for alumina piezo ceramics

  The preparation process of alumina piezo ceramics mainly includes three aspects: preparation of alumina powder, formation of alumina ceramics and preparation of sintered alumina ceramics. At present, the preparation process of the alumina powder includes following aspects: (1) an hydrolysis method.

  Basics of Piezoelectric Ceramics August 31, 2018