The effect of TiO2 and B2O3 on sintering behavior and crystallization behavior of SrO–BaO–B2O3–SiO2 glass-ceramics

Zhang, Bing; He, Feng; Cao, Xiuhua; Wei, Mingjie; Zheng, Congcong; Xie, Jianliang

doi:10.1016/j.ceramint.2021.11.259

Cited by 21 publications

(4 citation statements)

References 37 publications

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“…The broad ranging band was deconvoluted based on Gaussian function for the determination of the proportions of Q n (n is the bridging oxygen number, n = 0, 1, 2, 3, 4) in the parent glasses, which were represented by the area fraction of the fitting peak. According to the literatures [34], Q 0 is located near 880 cm -1 , Q 1 is located near 930 cm -1 , Q 2 is located near 990 cm -1 , Q 3 is located near 1050 cm -1 and Q 4 is located near 1150 cm -1 . Figure 3 shows the deconvolution of the Raman spectra of the parent glasses with the different CaO contents, and the area fraction of the Q n obtained from the Gaussian deconvolution of the Raman spectra listed in Table 3.…”

Section: Structural Analysis Of the Parent Glassesmentioning

confidence: 99%

INFLUENCE OF THE CaO CONTENT IN GLASS ON THE SINTERABILITY AND PROPERTIES OF A GLASS/Al₂O₃ COMPOSITE FOR LTCC APPLICATIONS

Fan¹

2022

Ceramics - Silikaty

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In this paper, the influence of the CaO content in glass on the sintering behaviour, structure, and properties of CaO-B 2 O 3 --Al 2 O 3 -SiO 2 glass/Al 2 O 3 composites for low-temperature co-fired ceramic materials was studied. The results show that an increase in the CaO content in the glass reduces the polymerisation degree of the glass network, thereby reducing the glass viscosity and promoting the densification of the liquid phase sintering, increasing the crystallisation tendency of the material, reducing the crystallisation peak temperature and promoting the precipitation of anorthite in the material. The sintering activation energy of the glass/Al 2 O 3 first decreases and then increases, and reached a minimum in C4. The anorthite can reduce the bulk density and coefficient of the thermal expansion of the materials, and an appropriate amount of anorthite can improve the flexural strength of the material by more than 190 MPa. When the CaO content in the glass increases, the required sintering temperature for the material to achieve the maximum flexural strength is lower.

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Section: Structural Analysis Of the Parent Glassesmentioning

confidence: 99%

INFLUENCE OF THE CaO CONTENT IN GLASS ON THE SINTERABILITY AND PROPERTIES OF A GLASS/Al₂O₃ COMPOSITE FOR LTCC APPLICATIONS

Fan¹

2022

Ceramics - Silikaty

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“…Zhang et al. sintered SrO–BaO–B 2 O 3 –SiO 2 glass–ceramics via LPS and found that the densification of glass–ceramics was promoted with the TiO 2 /B 2 O 3 ratio range of 0.00–0.62, whereas the TiO 2 /B 2 O 3 ratio of 0.91 deteriorated the densification 16 . Ye et al.…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al sintered SrO-BaO-B 2 O 3 -SiO 2 glass-ceramics via LPS and found that the densification of glass-ceramics was promoted with the TiO 2 /B 2 O 3 ratio range of 0.00-0.62, whereas the TiO 2 /B 2 O 3 ratio of 0.91 deteriorated the densification. 16 Ye et al prepared barium aluminosilicate (BAS) glass-ceramic composites reinforced with multiwalled carbon nanotubes (MWNTs). Their results showed that BAS glass-ceramic served as an effective LPS aid to promote the formation of highly dense BAS-MWNTs composite.…”

Section: Introductionmentioning

confidence: 99%

Liquid‐phase sintering of ZrO₂‐based nanocrystalline glass–ceramics achieved by multielement co‐doping

Wang

Deng

et al. 2022

J Am Ceram Soc.

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Liquid‐phase sintering (LPS) is an effective pathway to assist the densification of ceramics. However, it has seldom been used to densify glass–ceramics. In the present study, a multielement co‐doping strategy has been utilized to achieve LPS of a ZrO2–SiO2 nanocrystalline glass–ceramic. Compared with undoped samples densified by solid‐state sintering, doping of equimolar Al, Y, and Ca promoted the densification of the glass–ceramic at lower temperatures with a faster densification rate. Ternary doping enhanced coarsening of ZrO2 nanocrystallites during sintering and annealing. The distribution of dopants was carefully observed with X‐ray energy‐dispersive spectrometry technique in scanning electron transmission microscopy mode. Results showed that the three dopants showed different distribution behaviors. After sintering, Y dopants were predominately distributed in ZrO2 nanocrystallites, whereas parts of Al and Ca dopants were distributed in ZrO2 nanocrystallites and part of them co‐segregated at the ZrO2/SiO2 heterointerfaces. Meanwhile, the segregation of Ca dopant at some intergranular films among ZrO2 nanocrystallites was observed. Redistribution of dopants did not occur during annealing.

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“…Recent investigations have stressed that glass shields [14][15][16][17][18][19][20] are one of the most ambitious materials that might be used as an alternative for conventional materials that are disadvantaged in certain ways. Researchers in the literature [21][22][23][24][25][26][27][28][29][30] are particularly interested in glass structures because of the high permeability they provide and the exceptional mechanical properties they possess. It has also been pushed to a position where it is emphasized and developed in daily radiation safety practice because of the non-toxic nature of glasses and the chemical compositions that may be synthesized at high densities.…”

Section: Introductionmentioning

confidence: 99%

Physical Features of High-Density Barium–Tungstate–Phosphate (BTP) Glasses: Elastic Moduli, and Gamma Transmission Factors

et al. 2022

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We present elastic moduli, gamma radiation attenuation characteristics, and transmission factor of barium–tungstate–phosphate (BTP) glasses with the chemical formula (60-y)BaO-yWO3-40P2O5, where y = 10 (S1)–40 (S4) in steps of 10 mole%. Different types of mathematical and simulation approaches, such as the Makishima–Mackenzie model, the Monte Carlo method, and the online Phy-X/PSD software, are utilized in terms of determining these parameters. The total packing density (Vt) is enriched from 0.607 to 0.627, while the total energy dissociation (Gt) is enriched by increasing the WO3 content (from 52.2 (kJ/cm3). In the investigated glasses, increasing tungstate trioxide (WO3) contribution enhanced Young’s, shear, bulk, and longitudinal moduli. Moreover, Poisson’s ratio is improved by increasing the WO3 content in the BTP glasses. The 20BaO-40WO3-40P2O5 sample possessed the highest values of both linear (µ) and mass attenuation (µm) coefficients, i.e., (µ, µm)S4 > (µ, µm)S3 > (µ, µm)S2 > (µ, µm)S1. Moreover, the 20BaO-40WO3-40P2O5 sample had the lowest values of half (HVL) and tenth (TVL) layers, i.e., (half, tenth)S4 < (half, tenth)S3 < (half, tenth)S2 < (half, tenth)S1. The effective atomic number (Zeff) of the studied glasses has the same behavior as µ and µm. Finally, the 20BaO-40WO3-40P2O5 is reported with the minimum values of transmission factor (TF) for all the BTP investigated at a thickness of 3 cm. In conclusion, the sample with composition 20BaO-40WO3-40P2O5 which has the maximum WO3 reinforcement may be a beneficial glass sample, along with its advanced mechanical and gamma ray shielding properties.

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The effect of TiO2 and B2O3 on sintering behavior and crystallization behavior of SrO–BaO–B2O3–SiO2 glass-ceramics

Cited by 21 publications

References 37 publications

INFLUENCE OF THE CaO CONTENT IN GLASS ON THE SINTERABILITY AND PROPERTIES OF A GLASS/Al₂O₃ COMPOSITE FOR LTCC APPLICATIONS

INFLUENCE OF THE CaO CONTENT IN GLASS ON THE SINTERABILITY AND PROPERTIES OF A GLASS/Al₂O₃ COMPOSITE FOR LTCC APPLICATIONS

Liquid‐phase sintering of ZrO₂‐based nanocrystalline glass–ceramics achieved by multielement co‐doping

Physical Features of High-Density Barium–Tungstate–Phosphate (BTP) Glasses: Elastic Moduli, and Gamma Transmission Factors

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The effect of TiO2 and B2O3 on sintering behavior and crystallization behavior of SrO–BaO–B2O3–SiO2 glass-ceramics

Cited by 21 publications

References 37 publications

INFLUENCE OF THE CaO CONTENT IN GLASS ON THE SINTERABILITY AND PROPERTIES OF A GLASS/Al₂O₃ COMPOSITE FOR LTCC APPLICATIONS

INFLUENCE OF THE CaO CONTENT IN GLASS ON THE SINTERABILITY AND PROPERTIES OF A GLASS/Al₂O₃ COMPOSITE FOR LTCC APPLICATIONS

Liquid‐phase sintering of ZrO2‐based nanocrystalline glass–ceramics achieved by multielement co‐doping

Physical Features of High-Density Barium–Tungstate–Phosphate (BTP) Glasses: Elastic Moduli, and Gamma Transmission Factors

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Liquid‐phase sintering of ZrO₂‐based nanocrystalline glass–ceramics achieved by multielement co‐doping