Effect of ZnO on the interfacial bonding between Na2O–B2O3–SiO2 vitrified bond and diamond

Comprehensive Study on Elastic Moduli Prediction and Correlation of Glass and Glass Ceramic Derived from Waste Rice Husk

“…Decrease in and of the samples is due to rise in amount of ZnO present in the samples which contains Zn 2+ ions where its zinc atom had higher atomic radius compared to Si atom therefore encouraging the transformation of BOs to NBOs in the system. Based on SiO 2 gradually reduced to 3 from 4 as the values of ZnO rise and this causes the structural units of SiO 4 to be converted to SiO 3 initiating the rise of NBOs [24][25][26]. Decrease in both and with the rise of ZnO also indicates that the ultrasonic wave encounters more resistance in the ZnO-SiO 2 samples as the amount of ZnO increases [27,28].…”

Characterization of low sintering temperature and high strength SiO2-B2O3-CaO vitrified bonds for diamond abrasive tools

“…Previous studies have investigated the influences of different additives (Bi 2 O 3 , CaO, ZnO, TiO 2 , alkali oxides, ZrO 2 , polycrystalline mullite fibers, etc.) and their effects on the mechanical properties and microstructures of vitrified bond super-hard abrasive tools [12][13][14][15][16][17][18]. Research has shown that borosilicate vitrified bonds with low refractoriness, low expansion coefficients, high bending strength, and good wetting performance have potential use with diamond abrasive tools; however, some problems remain, such as increasing the vitrified bonds strength while decreasing the sintering temperature.…”

Effects of Cu on properties of vitrified bond and vitrified CBN composites

“…And the residual component, i.e., the vitrified bonds of glass/ceramic materials have good performance of resistance against water, oil and heat, contributing to the high chemical stability for the vitrified CBN grinding wheel. However, there exist some problems for the vitrified bond, such as large brittleness, low thermal conductivity, and thermal expansivity mismatching with the CBN abrasive grains [9][10][11][12]. Relatively speaking, metal bond has good toughness, strong combination with the CBN grains, and can bear greater loads.…”