Microstructure and mechanical behaviour of transient liquid phase spark plasma sintered B4C–SiC–TiB2 composites from a B4C–TiSi2 system

Wang, Yang; Liu, Qiang; Zhang, Biao; Zhang, Haoqian; Jin, Yicheng; Zhong, Zhaoxin; Ye, Jian; Ren, Yuhan; Ye, Feng

doi:10.1016/j.ceramint.2020.12.180

Cited by 42 publications

(18 citation statements)

References 46 publications

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“…Accordingly, B 4 C is widely used in aerospace bulletproof armor plates, neutron absorbers in the nuclear field, and some engineering wear‐resistant parts. Nevertheless, it is hard to prepare pure boron carbide ceramic with high density owing to the existence of low sinterability (due to the B 2 O 3 oxide layer and strong B‐C covalently bond), low self‐diffusivity coefficients, lower plasticity, and lower surface energy, which severely obstruct its broad application to a certain extent 26–33 . Yamada et al 11 .…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, it is hard to prepare pure boron carbide ceramic with high density owing to the existence of low sinterability (due to the B 2 O 3 oxide layer and strong B-C covalently bond), low self-diffusivity coefficients, lower plasticity, and lower surface energy, which severely obstruct its broad application to a certain extent. [26][27][28][29][30][31][32][33] At present, the sintering methods of fabricating ceramics and composite materials mainly include HP, pressureless sintering, SPS, reaction sintering, etc. 7,[36][37][38][39][40] SPS is an innovative sintering technique, which is based on the Joule heating process.…”

Section: Introductionmentioning

confidence: 99%

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High‐strength TiB₂‐B₄C composite ceramics sintered by spark plasma sintering

Chen

Zhang

Zeng

et al. 2022

Int J Applied Ceramic Tech

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Spark plasma sintering (SPS) is an advanced sintering technique because of its fast sintering speed and short dwelling time. In this study, TiB2, Y2O3, Al2O3, and different contents of B4C were used as the raw materials to synthesize TiB2‐B4C composites ceramics at 1850°C under a uniaxial loading of 48 MPa for 10 min via SPS in vacuum. The influence of different B4C content on the microstructure and mechanical properties of TiB2‐B4C composites ceramics are explored. The experimental results show that TiB2‐B4C composite ceramic achieves relatively good comprehensive properties and exceptionally excellent flexural strength when the addition amount of B4C reaches 10 wt.%. Its relative density, Vickers hardness, fracture toughness, and flexural strength reach to 99.20%, 24.65 ± .66 GPa, 3.16 MPa·m1/2, 730.65 ± 74.11 MPa, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High‐strength TiB₂‐B₄C composite ceramics sintered by spark plasma sintering

Chen

Zhang

Zeng

et al. 2022

Int J Applied Ceramic Tech

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“…While the boron carbide reacted only partially [30][31][32][33][34][35][36][37][38][39][40], the graphite reacted completely with silicon producing silicon carbide [40][41][42][43][44][45][46][47][48][49][50]. The residual boron carbide and silicon existed within the matrix of the composite [40][41][42][43][44][45][46][47][48][49][50] and together with silicon carbide gave rise to the B 4 C-SiC-Si composites [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. The pressureless sintered B 4 C/C(graphite) composites are thus transformed in...…”

Section: Introductionmentioning

confidence: 99%

“…The residual boron carbide and silicon existed within the matrix of the composite [40][41][42][43][44][45][46][47][48][49][50] and together with silicon carbide gave rise to the B 4 C-SiC-Si composites [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. The pressureless sintered B 4 C/C(graphite) composites are thus transformed into the B 4 C-SiC-Si composites via the silicon infiltration process [40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. The microstructural details, phase composition, and mechanical characteristics of the B 4 C/C(graphite) composites as well as B 4 C-SiC-Si composites fabricated by the silicon infiltration process were then investigated and compared.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Microstructural Features and Mechanical Characteristics of the Pressureless Sintered B4C/C(Graphite) Composites and the B4C-SiC-Si Composites Fabricated by the Silicon Infiltration Process

Jiang

2022

Materials

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The B4 C/C(graphite) composites were fabricated by employing a pressureless sintering process. The pressureless sintered B4 C/C(graphite) composites exhibited extremely low mechanical characteristics. The liquid silicon infiltration technique was employed for enhancing the mechanical property of B4 C/C(graphite) composites. Since the porosity of the B4 C/C(graphite) composites was about 25–38%, the liquid silicon was able to infiltrate into the interior composites, thereby reacting with B4 C and graphite to generate silicon carbide. Thus, boron carbide, silicon carbide, and residual silicon were sintered together forming B4 C-SiC-Si composites. The pressureless sintered B4 C/C(graphite) composites were transformed into the B4 C-SiC-Si composites following the silicon infiltration process. This work comprises an investigation of the microstructure, phase composition, and mechanical characteristics of the pressureless sintered B4 C/C(graphite) composites and B4 C-SiC-Si composites. The XRD data demonstrated that the pressureless sintered bulks were composed of the B4 C phase and graphite phase. The pressureless sintered B4 C/C(graphite) composites exhibited a porous microstructure, an extremely low mechanical property, and low wear resistance. The XRD data of the B4 C-SiC-Si specimens showed that silicon infiltrated specimens comprised a B4 C phase, SiC phase, and residual Si. The B4 C-SiC-Si composites manifested a compact and homogenous microstructure. The mechanical property of the B4 C-SiC-Si composites was substantially enhanced in comparison to the pressureless sintered B4 C/C(graphite) composites. The density, relative density, fracture strength, fracture toughness, elastic modulus, and Vickers hardness of the B4 C-SiC-Si composites were notably enhanced as compared to the pressureless sintered B4 C/C(graphite) composites. The B4 C-SiC-Si composites also manifested outstanding resistance to wear as a consequence of silicon infiltration. The B4 C-SiC-Si composites demonstrated excellent wear resistance and superior mechanical characteristics.

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“…The preparation of composites helps to give full play to the advantages of multicomponent materials [9]. In order to improve the sintering property of B4C, sintering additives such as metals [10], metal oxides [11], transition metal borides [12], and carbides [13] are often introduced to improve the density of point defects or dislocations, so as to achieve the activation effect on grain boundary and volume diffusion and increase the diffusion driving force in the sintering process [14,15]. Yavas et al [16] prepared B4C-CNT composite ceramic containing 3 wt.% CNT by SPS sintering, with hardness of 32.8 GPa and fracture toughness of 5.9 MPa•m 1/2 .…”

Section: Introductionmentioning

confidence: 99%

Study on Preparation and Reaction Mechanism of B4C/β-Sialon/SiC/Al2O3 Composite Powder

Yang

Deng

et al. 2022

Advances in Transdisciplinary Engineering

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B4C, Si, Al, and γ-Al2O3 were used as raw materials, formed β-Sialon and SiC in situ by solid-state reaction for preparation of B4C composite powder. β-Sialon and SiC grains are uniformly and dispersedly distributed in the composite powder. The effects of the molar ratio of raw materials, nitridation temperature and soaking time for the phase composition, and microstructure of the composite powder were studied. When the molar ratio of B4C and Si is 2: 3, the composite powder with columnar β-Sialon grains growing alternately can be prepared after nitridation at 1500°C for 4 h. The liquid phase formed by the melting of Si at high temperature promoted the dissolution of B4C and the formation of SiC. When the nitridation temperature was increased or the soaking time was prolonged, the gas phase volatilization of Si and Al was intensified, SiC and AlN whiskers tend to be formed in the composite powder.

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Microstructure and mechanical behaviour of transient liquid phase spark plasma sintered B4C–SiC–TiB2 composites from a B4C–TiSi2 system

Cited by 42 publications

References 46 publications

High‐strength TiB₂‐B₄C composite ceramics sintered by spark plasma sintering

High‐strength TiB₂‐B₄C composite ceramics sintered by spark plasma sintering

Investigation of Microstructural Features and Mechanical Characteristics of the Pressureless Sintered B4C/C(Graphite) Composites and the B4C-SiC-Si Composites Fabricated by the Silicon Infiltration Process

Study on Preparation and Reaction Mechanism of B4C/β-Sialon/SiC/Al2O3 Composite Powder

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Microstructure and mechanical behaviour of transient liquid phase spark plasma sintered B4C–SiC–TiB2 composites from a B4C–TiSi2 system

Cited by 42 publications

References 46 publications

High‐strength TiB2‐B4C composite ceramics sintered by spark plasma sintering

High‐strength TiB2‐B4C composite ceramics sintered by spark plasma sintering

Investigation of Microstructural Features and Mechanical Characteristics of the Pressureless Sintered B4C/C(Graphite) Composites and the B4C-SiC-Si Composites Fabricated by the Silicon Infiltration Process

Study on Preparation and Reaction Mechanism of B4C/β-Sialon/SiC/Al2O3 Composite Powder

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High‐strength TiB₂‐B₄C composite ceramics sintered by spark plasma sintering

High‐strength TiB₂‐B₄C composite ceramics sintered by spark plasma sintering