Milling time and sintering parameters optimization to fabricate ZrB<sub>2</sub>-30 vol% SiC composite with highest thermal shock resistance

Akhlaghi, Nima; Balak, Zohre; Birgani, Ebrahim Najafi

doi:10.1088/2053-1591/ab0782

Cited by 18 publications

(2 citation statements)

References 23 publications

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“…Following this, the water-quenched composite laminates were subjected to low-speed impact with a steel ball, and the resultant damage was non-destructively characterized. Akhlaghi et al 23 investigated the thermal shock resistance of ZrB 2 -30 vol% SiC, the results showed that grain size, especially SiC grain, and open porosity have a strong effect on thermal shock resistance. With the increase in the spark plasma sintering process (SPS) temperature, the grain size was increased to some extent, and the microstructure was improved.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and thermal shock resistance of TiB₂‒B₄C composite ceramic tool materials at microscopic scale

Wang,

Ding,

Zhang

et al. 2024

Int J Applied Ceramic Tech

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A finite model incorporating microstructure was developed to investigate the thermal shock resistance of TiB2‒B4C composite ceramic cutting tool materials. Numerical simulations were conducted to analyze changes in the transient temperature field and thermal stress field during the thermal shock process. TiB2‒B4C composite ceramic tool materials were fabricated using discharge plasma sintering technology. With different B4C contents, different sintering temperatures and holding times as study variables, optimization of the sintering process parameters and ceramic material components was achieved through testing the mechanical and microscopic morphology of the ceramics. Thermal shock water quenching experiments were performed, and the strength‐decay method was employed to assess the thermal shock resistance of TiB2‒B4C ceramics. The findings indicate that the optimal sintering conditions are temperature of 1700°C and holding time of 5 min. The TiB2‒B4C ceramic material containing 20 vol% B4C exhibits superior comprehensive mechanical properties and thermal shock resistance, and its relative density, fracture toughness, hardness, and flexural strength were 99.3%, 6.8 MPa m1/2, 22.8 GPa, and 598 MPa, respectively. The critical thermal shock temperature difference falls within the range of 400°C‒500°C.

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Section: Introductionmentioning

confidence: 99%

Mechanical properties and thermal shock resistance of TiB₂‒B₄C composite ceramic tool materials at microscopic scale

Wang,

Ding,

Zhang

et al. 2024

Int J Applied Ceramic Tech

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“…As a member of UHTCs, ZrB 2 has gained a great deal of scientific attention owing to the attractive physical and mechanical characteristics, including relatively low density, high melting temperature, good electrical and thermal conductivity, high modulus and strength, and chemical stability [6][7][8][9]. However, this material suffers from some deficiencies like weak sinterability, undesirable oxidation resistance at high temperatures, oxide impurities formation on its surface, and low bulk selfdiffusion coefficient [8,[10][11][12][13]. Therefore, it is necessary to apply very high temperatures and external mechanical loads for manufacturing the fully dense monolithic ZrB 2 [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Synergistic influence of SiC and C₃N₄ reinforcements on the characteristics of ZrB₂-based composites

Ahmadi

Zakeri

Farvizi

et al. 2020

Journal of Asian Ceramic Societies

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In this work, ZrB 2-SiC and novel C 3 N 4-doped ZrB 2-SiC composites were manufactured at 1850° C under an external load of 40 MPa for 6 min via spark plasma sintering. The effects of C 3 N 4 on the mechanical characteristics (flexural strength, Vickers hardness, and fracture toughness) and microstructure of the ZrB 2-SiC-based composites were investigated. By adding 5 wt% g-C 3 N 4 , a fully dense ceramic composite was fabricated, compared to the C 3 N 4-free ZrB 2-SiC composite with a relative density of 95%. Removal of ZrO 2 and B 2 O 3 from the surface of ZrB 2 particles via chemical reactions with C 3 N 4 , and the in-situ synthesis of ZrC and BN as new phases were studied by XRD and SEM analyses. Indentation fracture toughness, flexural strength, and Vickers hardness improved from 4.5 MPa.m 1/2 , 460.2 MPa and 17.4 GPa to 6.1 MPa.m 1/2 , 580.2 MPa and 21.2 GPa, respectively, by adding g-C 3 N 4 to the ZrB 2-SiC ceramic.

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基于石墨烯-碳化硅纳米线协同增韧的高硬度高韧性超细 Wc 陶瓷

Shen,

Xu,

et al. 2024

J. Cent. South Univ.

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Milling time and sintering parameters optimization to fabricate ZrB₂-30 vol% SiC composite with highest thermal shock resistance

Cited by 18 publications

References 23 publications

Mechanical properties and thermal shock resistance of TiB₂‒B₄C composite ceramic tool materials at microscopic scale

Mechanical properties and thermal shock resistance of TiB₂‒B₄C composite ceramic tool materials at microscopic scale

Synergistic influence of SiC and C₃N₄ reinforcements on the characteristics of ZrB₂-based composites

基于石墨烯-碳化硅纳米线协同增韧的高硬度高韧性超细 Wc 陶瓷

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Milling time and sintering parameters optimization to fabricate ZrB2-30 vol% SiC composite with highest thermal shock resistance

Cited by 18 publications

References 23 publications

Mechanical properties and thermal shock resistance of TiB2‒B4C composite ceramic tool materials at microscopic scale

Mechanical properties and thermal shock resistance of TiB2‒B4C composite ceramic tool materials at microscopic scale

Synergistic influence of SiC and C3N4 reinforcements on the characteristics of ZrB2-based composites

基于石墨烯-碳化硅纳米线协同增韧的高硬度高韧性超细 Wc 陶瓷

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Milling time and sintering parameters optimization to fabricate ZrB₂-30 vol% SiC composite with highest thermal shock resistance

Mechanical properties and thermal shock resistance of TiB₂‒B₄C composite ceramic tool materials at microscopic scale

Mechanical properties and thermal shock resistance of TiB₂‒B₄C composite ceramic tool materials at microscopic scale

Synergistic influence of SiC and C₃N₄ reinforcements on the characteristics of ZrB₂-based composites