Effect of TiO2 and CaF2 on the crystallization behavior of Y2O3-Al2O3-SiO2 glass ceramics

Zhu, Weiwei; Jiang, Haifeng; Zhang, He; Jia, Suqiu; Liu, Yaodong

doi:10.1016/j.ceramint.2018.01.076

Cited by 29 publications

(5 citation statements)

References 30 publications

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“…The intense absorption band in the range of 850-1200 cm -1 is the asymmetric stretching vibration of Si-O-Si bonds in the SiO 4 tetrahedron with different numbers of bridging oxygen atoms [15,29,30]. This band comprises the unit Q n standing for a silicon tetrahedron containing n bridging oxygen (BO), namely, Q 0 ( Table 3 gives the frequencies, areas and area% and these bands at near 900 cm -1 , 960 cm -1 , 1095 cm -1 and 1190 cm -1 respectively contributed to Q 1 , Q 2 , Q 3 and Q 4 .…”

Section: Structure Analysismentioning

confidence: 99%

“…S. Ahmadet al [13] [14]. YAS glass ceramics are superior than YAS glasses in mechanical performance and oxidation resistance when they are used as sintering additives for preparing SiC ceramic or Si 3 N 4 ceramic [15]. Matching TECs of the joined components and filler is essential for minimizing the thermal stresses in the joint, so that the thermal expansion coefficients of sintering additives or filler should be in the same range or lower than those of the ceramic materials to be joined [3].…”

Section: Introductionmentioning

confidence: 99%

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Crystallization behavior and IR structure of yttrium aluminosilicate glasses

Zheng

Liu

et al. 2020

Journal of the European Ceramic Society

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The crystallization of four Y 2 O 3-Al 2 O 3-SiO 2 (YAS) glasses were investigated to prepare YAS glass ceramics precipitated singly/mainly Y 2 Si 2 O 7 or Y 4.67 (SiO 4) 3 O apatite, and to explore the crystallization difference between the stoichiometric parent glass (SPG) and non-stoichiometric parent glass (NSPG). The DSC results revealed that glass locating at the higher liquidus surface temperature has lower crystallization peak temperature, which indicating that the corresponding glass has higher crystallization potential to crystallize easily. Crystallization of the NSPG samples is along surface and caused by phase separation, while SPG sample is the surface crystallization at the first *Manuscript Click here to view linked References 2 exothermic peak temperature and overall crystallization at the second exothermic peak temperature. Glass ceramics only containing y-Y 2 Si 2 O 7 or Y 4.67 (SiO 4) 3 O apatite are obtained successfully, and which are illustrated by fitting FTIR spectra. These results can provide technical guide for controlling the crystallization process and the types of precipitated crystals in YAS glass for different application potentials.

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Section: Structure Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Crystallization behavior and IR structure of yttrium aluminosilicate glasses

Zheng

Liu

et al. 2020

Journal of the European Ceramic Society

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“…[Si 2 O 7 ] 6favored combining with [MgO 4 ] 6-, and akermanite formed as a result [2]. Nucleation agents of TiO 2 , ZrO 2 , and Fe 2 O 3 were thought beneficial for bulk crystallization in glass ceramics, which may induce the formation of diopside [6,[12][13][14]. The peak intensity of diopside in MBF4 is similar to that of MBF5, revealing that the degree of crystallinity was increased.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Non-Fluorine Glass Ceramics from Modified Molten Blast Furnace Slag

Zhang

Xie

et al. 2019

MSF

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Non-fluorine glass ceramics were successfully prepared from modified molten blast furnace (BF) slag. Quartz sand and Al2O3 were added as modification material. Fe2O3, TiO2, and ZrO2 were added as nucleation agents. The thermal properties of the modified BF slag and the structure of glass ceramics were investigated by differential scanning calorimetry (DSC), scanning electron microscope (SEM) and X-ray diffraction analysis (XRD). The results indicated that the crystallization temperature (Tp) decreased with increasing BF slag, and the glass stability index ΔT initially decreased and then increased. As BF slag increased, the growth of akermanite in glass ceramics was enhanced, while the formation of diopside was not notably effected. The micro-hardness of glass ceramics reached 1082 Hv and the flexural strength was 70 MPa when the BF slag was 74 wt. %.

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“…After that, the core of mullite crystal grew into the columnar crystal through mutual diffusion, as shown in Fig. 6(a) [37][38][39][40][41]. The size of the columnar mullite was about 10μm, as shown in Fig.…”

Section: Cytotoxicitymentioning

confidence: 99%

Tribological changes of tooth enamel-mullite/3Y-TZP couple in artificial saliva

Huang

Liu

et al. 2021

Preprint

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In-situ mullite toughened 3Y-TZP composite ceramic (mullite/3Y-TZP) with excellent mechanical properties was fabricated by gel-casting. The cytotoxicity of mullite/3Y-TZP was determined by both extract and direct contact methods, and the results indicated that mullite/3Y-TZP had no acute cytotoxicity. Furthermore, the tribological properties of the tooth enamel sliding against mullite/3Y-TZP in artificial saliva were investigated by using the pin-on-plate friction method. The friction coefficient (μ) between the two friction samples was about 0.464 with a stable friction process, and both of them showed slight wear. Analysis of the wear surface and debris demonstrated that the tooth enamel mainly suffered from fatigue wear accompanied by mild adhesive wear, while mullite/3Y-TZP showed slight abrasive wear. This result indicated that mullite/3Y-TZP had good wear resistance and showed potential applications in dental material.

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Effect of TiO2 and CaF2 on the crystallization behavior of Y2O3-Al2O3-SiO2 glass ceramics

Cited by 29 publications

References 30 publications

Crystallization behavior and IR structure of yttrium aluminosilicate glasses

Crystallization behavior and IR structure of yttrium aluminosilicate glasses

Preparation of Non-Fluorine Glass Ceramics from Modified Molten Blast Furnace Slag

Tribological changes of tooth enamel-mullite/3Y-TZP couple in artificial saliva

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