Wire electrical discharge machining and microstructural analysis of hot-pressed boron carbide

被引：0

作者：

Pramanick, Ayan ^{[1
]}

Dey, Partha Pratim ^{[2
]}

Das, Probal Kr. ^{[3
]}

Bhukhanwala, Niraj P. ^{[4
]}

机构：

[1] Department of Mechanical Engineering, NIT Sikkim, Ravangla,Sikkim, India

[2] Department of Mechanical Engineering, IIEST, Shibpur, Howrah,West Bengal, India

[3] CSIR-Central Glass & Ceramic Research Institute, Jadavpur, Kolkata,West Bengal, India

[4] Bhukhanvala Industries Pvt. Ltd., Navsari,Gujrat, India

来源：

Micron | 2021年 / 141卷

关键词：

Fracture toughness - Elastic moduli - Electric discharges - Boron carbide - Hardness - Rietveld refinement;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Boron carbide powder was hot-pressed at 2070 °C with 30 MPa uniaxial pressure and 90 min soaking. The mechanical, microstructure and other related properties were evaluated. XRD of the boron carbide powder and sintered samples, shows the presence of B13C2 phase of high electrical conductivity. Crystal lattice parameters, space group, cell angle, cell parameters, etc. were found from Rietveld refinement. The micro Vicker's hardness was 26.98 ± 0.98 GPa at 4.9 N load, fracture toughness 3.54 ± 0.26 MPa m and Young's modulus 461.50 ± 4.5 GPa. The hot-pressed boron carbide was found to be electrically conducting, which can be machined using a wire electrical discharge machine (WEDM). © 2020 Elsevier Ltd

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