Enhanced thermal and mechanical properties of Li–Al–Si composites with K2O–B2O3–SiO2 glass for LTCC application

Qin, Yuchang; Zhong, Chaowei; Yang, Hongyu; Qin, Tianying; Yuan, Ying; Tang, Bin; Zhang, Shuren

doi:10.1016/j.ceramint.2019.05.077

Cited by 14 publications

(4 citation statements)

References 28 publications

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“…The α‐alumina phase comes from the powder Al 2 O 3 , which is in agreement with the results found in the literature 46,47,48 . We only noticed the presence of the α‐alumina phase in the sintered tape, considering that SiO 2 served as a flux to reduce the sintering temperature 49,50 …”

Section: Resultssupporting

confidence: 91%

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Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Silva

Alves

Freitas

et al. 2020

Int J Applied Ceramic Tech

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High-temperature co-fired ceramic (HTCC) technology has attracted increasing attention due to its cost-benefit ratio and excellent working capacity in adverse temperature environments, 1,2,3 applying to components of gas turbine engines for high-temperature aircraft. 4,5 Typically, fibers ceramic matrices are commonly used in exhaust structures in these turbines, presenting irregular and low hardness surfaces, which generate insufficient resistance to wear and erosion. 6,7 Thus, it is necessary to develop ceramic substrates that serve as protective covers for these materials. 8,9 We commonly use alumina ceramic matrices as the material for substrates and packages because of their excellent mechanical and thermal properties, high dielectric strength, high resistivity, and thermal and chemical stability. 10,11 However, the use of pure alumina nanoparticles is limited for this purpose, considering that its sintering temperature for dense bodies occurs above 1350°C. 12,13 The incorporation of industrial waste such as from the sugarcane bagasse ash (SCBA) into the alumina substrate serves as a flux, decreasing the sintering temperature. 14,15 Generally, waste will have discarded outdoors, causing significant environmental problems, affecting flora, fauna, and people's

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Section: Resultssupporting

confidence: 91%

“…46,47,48 We only noticed the presence of the α-alumina phase in the sintered tape, considering that SiO 2 served as a flux to reduce the sintering temperature. 49,50 Figure 2B shows a representative SEM image taken from the SCBA waste. We verified that varied sizes and shapes form the waste particles.…”

Section: Resultsmentioning

confidence: 99%

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Silva

Alves

Freitas

et al. 2020

Int J Applied Ceramic Tech

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“…At present, the research on low-temperature sintering glass has been applied to the sealing of solid oxide fuel cells and the application of low temperature co-fired ceramics [12][13][14], but there is little research focused on electronic paste glass powders. Borate-based glass has strong chemical stability and has many applications in low temperature co-fired ceramics, and it can be easily combined with ceramic materials commonly used in electronic devices, such as alumina and barium titanate [13,15,16].…”

Section: Introductionmentioning

confidence: 99%

EFFECTS OF THE SiO₂-B₂O₃ RATIO ON THE STRUCTURE AND PROPERTIES OF B₂O₃-ZnO-SiO₂-BaO-LiO₂-Al₂O₃-Na₂O-CaO PARENT GLASS AND GLASS-CERAMICS

Li¹

2022

Ceramics - Silikaty

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The experimental results show that a decrease in the SiO 2 /B 2 O 3 ration reduced the glass transition temperature, but had little effect on the crystallisation temperature. The basic glass powder pressed into strip samples were sintered at a temperature of 630 to 690 °C. With a decrease in the SiO 2 /B 2 O 3 ratio, the structure of glass and glass-ceramics changed, and the same change also occurred in the crystal phase in the glass-ceramics. When the SiO 2 /B 2 O 3 ratio was 0.29, the glassceramics sintered at 670 °C reached the best properties, including the bending strength, density, and acid resistance. When the SiO 2 /B 2 O 3 ratio was 0.29, the coefficient of thermal expansion of the glass-ceramics sintered at different temperatures were maintained in the range of 6.3 -7.2 × 10 -6 K -1 .

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“…The glass/ceramic systems are formed through liquid phase sintering, which is completed by the glass liquid bonding the ceramic particles at a high temperature and the precipitation of crystalline phases [12]. The densification, crystalline phases, and ceramic types all have an impact on the performance of LTCC materials.…”

Section: Introductionmentioning

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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Enhanced thermal and mechanical properties of Li–Al–Si composites with K2O–B2O3–SiO2 glass for LTCC application

Cited by 14 publications

References 28 publications

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

EFFECTS OF THE SiO₂-B₂O₃ RATIO ON THE STRUCTURE AND PROPERTIES OF B₂O₃-ZnO-SiO₂-BaO-LiO₂-Al₂O₃-Na₂O-CaO PARENT GLASS AND GLASS-CERAMICS

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

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Enhanced thermal and mechanical properties of Li–Al–Si composites with K2O–B2O3–SiO2 glass for LTCC application

Cited by 14 publications

References 28 publications

Incorporating sugarcane bagasse ash into Al2O3 ceramic tapes

Incorporating sugarcane bagasse ash into Al2O3 ceramic tapes

EFFECTS OF THE SiO₂-B₂O₃ RATIO ON THE STRUCTURE AND PROPERTIES OF B₂O₃-ZnO-SiO₂-BaO-LiO₂-Al₂O₃-Na₂O-CaO PARENT GLASS AND GLASS-CERAMICS

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

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Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes