Production of Nanostructured Boron Carbide Ceramics for Industrial Applications-Reference-Cited by-同舟云学术

Production of Nanostructured Boron Carbide Ceramics for Industrial Applications

Published:2022-02-15 Issue: Volume:910 Page:1075-1080
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Eremeeva Zhanna V.¹,Kamali Saeed²,Lizunov Artem I.³,Ovchinnikov Vasiliy A.⁴

Affiliation:

1. National University of Science and Technology "MISiS"

2. University of Tennessee Space Institute

3. Moscow Polytechnic University

4. Plekhanov Russian University of Economics

Abstract

The optimal modes (temperature, time, pressure force) of spark plasma sintering (SPS) and hot pressing of boron carbide obtained by various methods are determined. The initial powders were obtained from soot and amorphous boron by the mechanochemical synthesis method, by the high-temperature synthesis (SHS) method and by the carbon reduction method. The structure and the properties of SPS sintered and hot-pressed boron carbide blanks were determined. The highest value of the relative density was achieved during SPS sintering of blanks from B4C powders obtained by mechanosynthesis and SHS methods. It was found out the optimal conditions for sintering blanks from B4C powder obtained by mechanosynthesis. The density value reaches 99.0 rel.% at 1500 °C/25 MPa and sintering time of 45 min. For powders obtained by the SHS method, the density of sintered blanks is 98.5 rel.%. at 1800 °C/30 MPa with sintering time of 45 min. The highest value of the relative density was achieved during the hot pressing of blanks from B4C powders obtained by mechanosynthesis.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.910.1075.pdf

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