Improved Pressureless Densification of B<sub>4</sub>C

Speyer, Robert F.; Lee, Hyukjae

doi:10.1002/9781118406793.ch6

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Rapid heating is helpful in achieving higher densities with fine microstructure, as the compacts can be heated to a temperature where densification can take place before the microstructure becomes highly coarsened. 179,183,188,205 Appearance of twins in the grains is characteristic of boron carbide. These twins slowly…”

Section: Pressureless Sinteringmentioning

confidence: 99%

Synthesis and consolidation of boron carbide: a review

Suri

Subramanian

Sonber

et al. 2010

International Materials Reviews

618

290

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Boron carbide is a strategic material, finding applications in nuclear industry, armour for personnel and vehicle safety, rocket propellant, etc. Its high hardness makes it suitable for grinding and cutting tools, ceramic bearing, wire drawing dies, etc. Boron carbide is commercially produced either by carbothermic reduction of boric acid in electric furnaces or by magnesiothermy in presence of carbon. Since many specialty applications of boron carbide require dense bodies, its densification is of great importance. Hot pressing and hot isostatic pressing are the main processes employed for densification. In the recent past, various researchers have made attempts to improve the existing methods and also invent new processes for synthesis and consolidation of boron carbide. All the techniques on synthesis and consolidation of boron carbide are discussed in detail and critically reviewed.

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Section: Pressureless Sinteringmentioning

confidence: 99%

Synthesis and consolidation of boron carbide: a review

Suri

Subramanian

Sonber

et al. 2010

International Materials Reviews

618

290

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“…B 4 C has the advantage of low density, high hardness, excellent thermal stability, remarkable chemical inertness, and neutron absorption capacity, thus it is used as armor, abrasion resistance material, self-lubricating material and Shielding of Nuclear reactor [1][2][3][4][5][6]. However, B 4 C is hard to sinter and it has bad toughness, which constrains its application.…”

Section: Introductionmentioning

confidence: 99%

The Study on Preparation of a B<sub>4</sub>C/Al Composite Fabricated by the Sponge Impregnant Method

Chen

Li²,

Sun³

et al. 2013

AMR

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In this work, B4C porous ceramics reinforced alumium composite was fabricated by the sponge impregnant method and pressureless infiltration technique. The wettability of aluminum on B4C, the component and the wear resistance of the composite were studied .The result indicates that the infiltration temperature is determined 1200 centigrade and there are mainly Al, B4C, Al3BC , no AL4C3in the experimental composite, the wear resistance of B4C/AL composite is 25 to 30 times higher than that of the alumium.

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