Glass material high temperature test

The high-temperature test of glass materials uses the pulse excitation method to measure the elastic modulus, shear modulus, Poisson's ratio and other elastic properties of glass materials in high-temperature environments. It is suitable for continuous and homogeneous glass materials. It can not only measure a given temperature point, but also continuously measure the elastic properties of glass materials at different temperature points.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various glass materials and provides professional high-temperature testing services for glass materials.

There are many types of glass materials. Different types of glass have different appearance and performance. The specific classification is as follows:
1. According to the technology, it can be divided into: hot-melt glass, relief glass, forged glass, crystal glass, colored glass, wired glass, polycrystalline glass, glass mosaic, tempered glass, laminated glass, insulated glass, dimmable glass, luminous glass, etc.
2. According to production, it can be divided into: flat glass and deep-processed glass.
1) Flat glass is mainly divided into three types: top-drawn flat glass (divided into grooved/grooved), flat-drawn flat glass and float glass.
2) Deeply processed glass can be divided into: tempered glass, frosted glass, sandblasted glass, patterned glass, wired glass, insulated glass, laminated glass, bulletproof glass, heat-bent glass, glass bricks, cellophane, LED photoelectric glass, dimming glass, energy-saving glass, etc.

1. Use a pulse exciter to generate mechanical excitation, which acts on a rectangular cross-section sample in a high temperature environment to cause vibration of the sample, and measure the bending vibration frequency and torsional vibration frequency of the sample.
2. Obtain the fundamental frequency of the sample through fast Fourier transform, calculate the elastic modulus of the sample using the fundamental frequency of bending vibration, and calculate the shear modulus using the frequency of torsional vibration.
3. Poisson's ratio is calculated from the relationship between elastic modulus and shear modulus.

GB/T 31544-2015 Test method for high temperature elastic properties of glass materials Pulse excitation method
GB/T 1216 External diameter micrometer
GB/T 16839.1 Thermocouple Part 1: Index table
JC/T 2172 Test methods for elastic modulus, shear modulus and Poisson's ratio of fine ceramics Pulse excitation method