Journal ArticleDOI
Microstructure and properties of (SiC, TiB2)/B4C composites by reaction hot pressing
TLDR
In this article, the phase composition of B 4 C, α-SiC, BN and TiB 2 was determined by means of XRD, SEM of surface thermally etched and TEM.About:
This article is published in Ceramics International.The article was published on 2006-12-01. It has received 65 citations till now. The article focuses on the topics: Microstructure & Fracture toughness.read more
Citations
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Journal ArticleDOI
Synthesis and consolidation of boron carbide: a review
TL;DR: In this article, all the techniques on synthesis and consolidation of boron carbide are discussed in detail and critically reviewed, including hot pressing and hot isostatic pressing are the main processes employed for densification.
Journal ArticleDOI
Contribution of SiC particle size and spark plasma sintering conditions on grain growth and hardness of TiB2 composites
TL;DR: In this article, the significance and contribution of SiC particle size and spark plasma sintering (SPS) parameters on the mean TiB2 grain size and Vickers hardness of 20% SiC ceramic composites were studied.
Journal ArticleDOI
Microstructures and mechanical properties of B4C–SiC intergranular/intragranular nanocomposite ceramics fabricated from B4C, Si, and graphite powders
TL;DR: In this article, the disordered characteristic of the milled powders is the essential factor for the formation of the intragranular structure, sudden densification within the narrow temperature range (1700-1900°C), and the preparation of dense samples under a relatively low temperature (1900-°C).
Journal ArticleDOI
Microstructure and high-temperature strength of B4C-TiB2 composite prepared by a crucibleless zone melting method
TL;DR: In this article, a floating zone method based on crucibleless zone melting of compacted powders was used to produce directionally reinforced eutectic B 4 C-TiB 2 composite.
Journal ArticleDOI
Microstructure and mechanical properties of B4C-TiB2-SiC composites toughened by composite structural toughening phases
TL;DR: In this article, the composite structural toughening units of the (TiB2-SiC) composite play an important role in reinforcing the fracture toughness of the composites, which can effectively promote the sintering of B4C ceramics.
References
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Journal ArticleDOI
Microstructural evolution during transient plastic phase processing of titanium carbide-titanium boride composites
TL;DR: In this article, the evolution of the microstructure is governed by the diffusion of boron and carbon, rather than titanium, which is an intermediate phase in the platelet composition and appears to be important to the development of the Ti3B4 phase.
Journal ArticleDOI
Mechanical and electrical properties of B4C–CrB2 ceramics fabricated by liquid phase sintering
TL;DR: In this paper, a high strength of 684 MPa and a modest fracture toughness of 3.2 MPa m 1/2 were obtained for the B 4 C-22.5 mol% CrB 2 sample.
Journal ArticleDOI
Thermal Conductivity of Boron Carbide–Boron Nitride Composites
TL;DR: In this article, the authors found that the addition of boron nitride dispersions to hot-pressed bors carbide was found to result in a considerable degree of anisotropy in thermal conductivity of the resulting composite, indicating indirect evidence for the existence of an interfacial thermal barrier.
Journal ArticleDOI
Abnormal grain growth and microcracking in boron carbide
TL;DR: In this paper, Boron carbide compacts sintered between 2220° and 2250° C showed abnormal grain growth that was associated with twinning and micro-cracking.
Patent
Process for the production of dense sintered shaped articles of polycrystalline boron carbide by pressureless sintering
TL;DR: In this article, a method of homogeneously mixing boron carbide in submicron powder form with small quantities of a carbon containing additive, forming the powder mixture into a shaped green body and then sintering the body in a controlled atmosphere and in the absence of external pressure at a temperature of about 2100°-2200° C.