How is alumina ceramic rod sintered?
Alumina ceramic is a ceramic material with alumina (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic washing is required. Alumina ceramics is a kind of widely used ceramics, because of its superior performance, the application in modern society has been more and more widely, to meet the needs of daily use and special performance.
Alumina ceramic rod
The plasma sintering method of zirconia ceramic rod mainly controls the sintering process by several parameters, such as pressure, temperature and time. In the process of heating sintering, heating depends on the convection and radiation heating of the heating body to the sample, so the heating rate is generally slow. Since rapid heating is beneficial to sintering and microstructure development, people have been trying to obtain extremely high heating rates. However, the realization of high speed heating can not be achieved by conventional electric heating method. Plasma heating can obtain a very high heating rate which cannot be achieved by electric heating method. Principle of plasma heating. The so-called plasma sintering refers to the use of high temperature and electron energy formed by gas discharge and controlled atmosphere to sintering materials. Because the plasma can reach high temperature instantaneously, and its heating rate can reach more than 1000 ℃/min, plasma sintering technology is a relatively new non-pressure rapid high temperature sintering technology for laboratory. This method was first used in 1968 for the sintering of A1203 ceramics, after so many years of development, this method has been successfully used for a variety of fine ceramics, such as AI23, Y23 Zr2, Mg0, SiC and so on.
