CN 41-1243/TG ISSN 1006-852X
Volume 42 Issue 5
Oct.  2022
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Article Contents
WANG Zhao, XU Sankui, HUANG Wei, XU Tianbing, HAN Ping, YAN Guojin, CHEN Zhaoqi, WU Tanyang. Effect of B2O3 content on the structure and properties of SiO2–B2O3–Al2O3–Na2O system ceramic binder[J]. Diamond & Abrasives Engineering, 2022, 42(5): 552-559. doi: 10.13394/j.cnki.jgszz.2022.0041
Citation: WANG Zhao, XU Sankui, HUANG Wei, XU Tianbing, HAN Ping, YAN Guojin, CHEN Zhaoqi, WU Tanyang. Effect of B2O3 content on the structure and properties of SiO2–B2O3–Al2O3–Na2O system ceramic binder[J]. Diamond & Abrasives Engineering, 2022, 42(5): 552-559. doi: 10.13394/j.cnki.jgszz.2022.0041

Effect of B2O3 content on the structure and properties of SiO2–B2O3–Al2O3–Na2O system ceramic binder

doi: 10.13394/j.cnki.jgszz.2022.0041
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  • Received Date: 2022-04-12
  • Rev Recd Date: 2022-07-02
  • Available Online: 2022-07-13
  • The SiO2–B2O3–Al2O3–Na2O system glass samples and the ceramic binder samples with different B2O3 contents were prepared. The density and the microhardness of different glass samples, the bending strength, the micro morphology and the thermal expansion coefficient of ceramic binder samples were measured by electronic multifunctional experimental machine, scanning electron microscope, microhardness instrument, plane flow method and thermal expansion coefficient tester. The structures and the compositions of the ceramic binder were analyzed by X-ray diffractometer and Fourier transform infrared spectrometer. The results show that the introduction of B2O3 into the ceramic binder can effectively reduce its sintering temperature, improve its thermal stability and adjust its thermal expansion coefficient. When B2O3 with mole fraction of 15% is added to the ceramic binder, the maximum bending strength of the spline is 78.11 MPa, and the maximum density and hardness are 2.45 g/cm3 and 856 MPa respectively, and the thermal expansion coefficient of the ceramic binder is the best match with that of diamond. The results of X-ray diffraction analysis show that the ceramic binder is a typical glass phase structure and has a good coating effect on the abrasives.

     

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