Low-Temperature Synthesis of Boron Carbide Ceramics

被引：3

作者：

Solodkyi, I. V. ^{[1
]}

Bogomol, I. I. ^{[1
]}

Vterkovs'kyi, M. Ya. ^{[1
]}

Loboda, P. I. ^{[1
]}

机构：

[1] Natl Tech Univ Ukraine, Igor Sikorsky Kyiv Polytech Inst, Pr Peremohy 37, UA-03056 Kiev, Ukraine

来源：

JOURNAL OF SUPERHARD MATERIALS | 2018年 / 40卷 / 04期

关键词：

boron carbide; infiltration; hardness; temperature gradient; MECHANICAL-PROPERTIES; COMPOSITES; ROOM; B4C;

D O I：

10.3103/S1063457618040020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study has been the first to demonstrate the possibility of producing boron carbide ceramics from coarse (D = 25-150 mu m) B4C powder (which is impossible to sinter by conventional methods) through infiltration with molten silicon and subsequent treatment within the field of the controlled temperature gradient. This produces yields a composite ceramics B4C-SiC-Si with a hardness of 26 to 35 GPa and a splitting tensile strength of 110 to 170 MPa. The influence of the velocity of movement of the temperature gradient on the structure, phase composition, and properties of the prepared composites has been studied.

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页码：236 / 242

页数：7

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