Low temperature sintering and microwave dielectric properties of MnZrNb2O8 ceramics with H3BO3 addition

Bi, J.X.; Xing, C.F.; Yang, Chang; Wu, Haitao; Jiang, Xuewen

doi:10.1016/j.jallcom.2016.03.144

Cited by 13 publications

(5 citation statements)

References 27 publications

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“…Boric acid (H 3 BO 3 ) is widely used as an effective sintering aid to reduce sintering temperature, such as low-temperature sintered Ca 0.61 La 0.39 Al 0.39 Ti 0.61 O 3 , Ca 2 V 2 O 7 , SiO 2 -TiO 2 , MnZrNb 2 O 8 , and Li 2 Mg 3 Ti 0.95 (Mg 1/3 Nb 2/3 ) 0.05 O 6 ceramics. [12][13][14][15][16] These ceramic materials confirmed that H 3 BO 3 could effectively promote densification and accelerate grain growth, thus achieving superior microwave parameters. However, there were few studies on the H 3 BO 3 -doped BCZTN ceramics, and the relationship between structure and microwave performance was not in-depth.…”

Section: Introductionmentioning

confidence: 60%

“…Therefore, we first selected 2 mol% (Zn 1/3 Nb 2/3 ) 4+ to substitute BCZTN ceramics and then added H 3 BO 3 to realize high microwave dielectric properties. Boric acid (H 3 BO 3 ) is widely used as an effective sintering aid to reduce sintering temperature, such as low‐temperature sintered Ca 0.61 La 0.39 Al 0.39 Ti 0.61 O 3 , Ca 2 V 2 O 7 , SiO 2 ‐TiO 2 , MnZrNb 2 O 8 , and Li 2 Mg 3 Ti 0.95 (Mg 1/3 Nb 2/3 ) 0.05 O 6 ceramics 12–16 . These ceramic materials confirmed that H 3 BO 3 could effectively promote densification and accelerate grain growth, thus achieving superior microwave parameters.…”

Section: Introductionmentioning

confidence: 81%

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Novel medium‐permittivity Ba_2.92Cu_0.08(Zn_1/3Nb_2/3)₂Ti₂Nb₄O₂₁ microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Wu,

Wang,

Jing

et al. 2024

J Am Ceram Soc.

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With the emergence of 5G–6G communication technology, the miniaturization and integration of electronic components are crucial. Ba3Ti4Nb4O21 (BTN) ceramics with hexagonal structures have attracted special attention due to their high dielectric constant, which shows greater application potential in communication base stations and dielectric resonators. However, its high sintering temperature and low‐quality factors also greatly limit the application field. In this paper, boric acid (H3BO3) as a dopant, was used to investigate the influence on the structure, microstructure, Raman spectrum, and microwave properties for Ba2.92Cu0.08(Zn1/3Nb2/3)2Ti2Nb4O21 (BCZTN)‐xHB (0.25≤x≤1.25 wt%) ceramics. The results reflected that H3BO3 was an effective additive, which could promote ceramic densification, accelerate grain growth and uniform distribution, and enhance its microwave performance. Among them, high densification was 93.92 ± 0.35%, and the Q × f value ∼16981 ± 340 GHz at x = 0.75, was more than 2∼3 times higher than other BTN‐based ceramics. Superior microwave dielectric properties were achieved for 0.75 wt% H3BO3‐doped BCZTN ceramic sintered at 900°C: εr∼42.35 ± 0.48, Q×f∼16981 ± 340 GHz, and τf∼40.02 ± 1.43 ppm/°C. More encouragingly, BCZTN‐0.75HB ceramic did not chemically react with Ag, which suggested that it had the potential to be a candidate material for low‐temperature co‐fired ceramics base station communication devices.

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Section: Introductionmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 81%

Novel medium‐permittivity Ba_2.92Cu_0.08(Zn_1/3Nb_2/3)₂Ti₂Nb₄O₂₁ microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Wu,

Wang,

Jing

et al. 2024

J Am Ceram Soc.

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“…(The size of the spheres in the diagram represents the value of the dielectric constant; the larger the sphere, the higher the dielectric constant of the dielectric ceramic. ) 4,19–20,33,41,54–85 …”

Section: Resultsmentioning

confidence: 99%

Enhanced high dielectric characteristics tri‐layered structural ceramics for 5G/6G communications

et al. 2022

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Tri-layered structural Zn 0.997 Cu 0.003 ZrNb 2 O 8 -TiO 2 +ZnO/TiO 2 +CuO/TiO 2 -Zn 0.997 Cu 0.003 ZrNb 2 O 8 ceramics with different mass fractions of TiO 2 +ZnO/TiO 2 +CuO/TiO 2 were successfully prepared. The advantages of the multilayered design were completely demonstrated, and the microwave dielectric characteristics were modified by the components of each dielectric layer. In comparison to the random distribution-type, Zn 0.997 Cu 0.003 ZrNb 2 O 8 @TiO 2 +ZnO, this tri-layered construction could increase the Q × f value by approximately 100%. Meanwhile, based on the electronic compensation mechanisms, the Q × f value of the tri-layered structural ceramics with TiO 2 -doped interlayer can be increased by nearly 20% compared with that of the pure TiO 2 interlayer. The Zn 0.997 Cu 0.003 ZrNb 2 O 8 -TiO 2 +ZnO-Zn 0.997 Cu 0.003 ZrNb 2 O 8 tri-layered ceramic exhibited excellent dielectric characteristics (𝜀 𝑟 = 33.75, Q × f = 59 000 GHz, and 𝜏 𝑓 = +2.27 ppm/ • C) with 0.05 wt% TiO 2 +ZnO sintered at 1240 • C for 6 h, and the integrated optimization of microwave dielectric characteristics was achieved. This article provides a strategy for the synthesis of high-performance microwave dielectric components for application in 5G/6G wireless communication technologies.

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“…6 In order to solve the problem of deterioration of the performance of materials due to quartz phase transition, adding a second phase to the quartz matrix is a common method to improve the comprehensive performance of ceramic materials. Common additives, such as Si 3 N 4 nanowires, 7 BN whiskers, 8 short carbon fibers, 9 B 4 C, 10 H 3 BO 3 , 11 and so forth. These additives have played a certain role in improving the properties of quartz.…”

Section: Introductionmentioning

confidence: 99%

Effect of BPO₄ on phase transition behavior and sintering of quartz materials

Li,

et al. 2023

Int J Applied Ceramic Tech

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In order to inhibit the phase transition of quartz, the effects of BPO4 addition and sintering temperature on the structure and properties of quartz materials were studied. The results showed that the addition of 5 wt.% BPO4 successfully inhibited the formation of cristobalite. Samples with 5 wt.% BPO4 added exhibited the high cold modulus of rupture (15.59 MPa) and bulk density (1.92 g/cm3) sintered at 1200°C–1400°C. In addition, BPO4 formed a glass phase sintered at 1200°C–1400°C and distributed between SiO2 particles, filling pores and densifying the material. Therefore, the prepared quartz‐based ceramics with BPO4 have broad potential in the field of medium and high temperatures, and can be applied to aerospace and other fields.

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Low temperature sintering and microwave dielectric properties of MnZrNb2O8 ceramics with H3BO3 addition

Cited by 13 publications

References 27 publications

Novel medium‐permittivity Ba_2.92Cu_0.08(Zn_1/3Nb_2/3)₂Ti₂Nb₄O₂₁ microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Novel medium‐permittivity Ba_2.92Cu_0.08(Zn_1/3Nb_2/3)₂Ti₂Nb₄O₂₁ microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Enhanced high dielectric characteristics tri‐layered structural ceramics for 5G/6G communications

Effect of BPO₄ on phase transition behavior and sintering of quartz materials

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Low temperature sintering and microwave dielectric properties of MnZrNb2O8 ceramics with H3BO3 addition

Cited by 13 publications

References 27 publications

Novel medium‐permittivity Ba2.92Cu0.08(Zn1/3Nb2/3)2Ti2Nb4O21 microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Novel medium‐permittivity Ba2.92Cu0.08(Zn1/3Nb2/3)2Ti2Nb4O21 microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Enhanced high dielectric characteristics tri‐layered structural ceramics for 5G/6G communications

Effect of BPO4 on phase transition behavior and sintering of quartz materials

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Product

Resources

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Novel medium‐permittivity Ba_2.92Cu_0.08(Zn_1/3Nb_2/3)₂Ti₂Nb₄O₂₁ microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Novel medium‐permittivity Ba_2.92Cu_0.08(Zn_1/3Nb_2/3)₂Ti₂Nb₄O₂₁ microwave dielectric ceramics with high Q × f value and densification for low‐temperature co‐fired ceramics electronic devices

Effect of BPO₄ on phase transition behavior and sintering of quartz materials