In-situ technique for synthesizing Fe–TiN composites

Wang, Chao; Gao, Haiyan; Dai, Yong; Ruan, Xiaoming; Shen, Jianguo; Wang, Jun; Sun, Baode

doi:10.1016/j.jallcom.2009.09.178

Cited by 25 publications

(7 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To further clarify the behavior of the B-Ta interface with the 9ReB 2 /21TaN structure, the charge densities, which express the spatial distribution of electrons in the system, and the charge density differences, which express the relative electron transfer for each atom during the construction of the interface system, are calculated. The charge density can be available directly, and the charge density difference is given in refs [ 45 , 46 , 47 , 48 ]:

where ρ total is the total charge density of the ReB 2 /TaN interface systems, and ρ ReB2 and ρ TaN are the charge densities for the ReB 2 and TaN relaxed isolated slabs, respectively. The charge densities and the charge density differences in the interfaces are presented in Figure 9 a,b, respectively.…”

Section: Resultsmentioning

confidence: 99%

Interfacial Model and Characterization for Nanoscale ReB2/TaN Multilayers at Desired Modulation Period and Ratios: First-Principles Calculations and Experimental Investigations

Jin

2018

Nanomaterials

View full text Add to dashboard Cite

The interfacial structure of ReB2/TaN multilayers at varied modulation periods (Λ) and modulation ratios (tReB2:tTaN) was investigated using key experiments combined with first-principles calculations. A maximum hardness of 38.7 GPa occurred at Λ = 10 nm and tReB2:tTaN = 1:1. The fine nanocrystalline structure with small grain sizes remained stable for individual layers at Λ= 10 nm and tReB2:tTaN = 1:1. The calculation of the interfacial structure model and interfacial energy was performed using the first principles to advance the in-depth understanding of the relationship between the mechanical properties, residual stresses, and the interfacial structure. The B-Ta interfacial configuration was calculated to have the highest adsorption energy and the lowest interfacial energy. The interfacial energy and adsorption energy at different tReB2:tTaN followed the same trend as that of the residual stress. The 9ReB2/21TaN interfacial structure in the B-Ta interfacial configuration was found to be the most stable interface in which the highest adsorption energy and the lowest interfacial energy were obtained. The chemical bonding between the neighboring B atom and the Ta atom in the interfaces showed both covalency and iconicity, which provided a theoretical interpretation of the relationship between the residual stress and the stable interfacial structure of the ReB2/TaN multilayer.

show abstract

Section: Resultsmentioning

confidence: 99%

Interfacial Model and Characterization for Nanoscale ReB2/TaN Multilayers at Desired Modulation Period and Ratios: First-Principles Calculations and Experimental Investigations

Jin

2018

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…An economical way to produce MMCs is by the direct interaction between the liquid metal (with alloying elements) and the gaseous species to produce fine dispersions of thermodynamically stable refractory compounds (Fig. 10) [66][67][68][69][70]. The matrices are usually non-ferrous metals such as Al, Cu, Mg, Ni, or Ti and the reinforcement phases could be carbides, nitrides, or a good admixture of both.…”

Section: Gas-liquid Reaction Processmentioning

confidence: 99%

Manufacture of Nano-Sized Particle-Reinforced Metal Matrix Composites: A Review

Zhou

Qiu

Wang

et al. 2014

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

Compared to the micro-sized particle-reinforced metal matrix composites, the nano-sized particle-reinforced metal matrix composites possess superior strength, ductility, and wear resistance, and they also exhibit good elevated temperature properties. Therefore, the nano-sized particle-reinforced metal matrix composites are the new potential material which could be applied in many industry fields. At present, the nano-sized particle-reinforced metal matrix composites could be manufactured by many methods. Different kinds of metals, predominantly Al, Mg, and Cu, have been employed for the production of composites reinforced by nano-sized ceramic particles such as carbides, nitrides, and oxides. The main drawbacks of these synthesis methods are the agglomeration of the nano-sized particles and the poor interface between the particles and the metal matrix. This work is aimed at reviewing the ex situ and in situ manufacturing techniques. Moreover, the distinction between the two methods is discussed in some detail. It was agreed that the in situ manufacturing technique is a promising method to fabricate the nano-sized particle-reinforced metal matrix composites.

show abstract

“…Han [12] calculated the microscopic properties of TiB 2 particle and analyzed the mechanism of TiB 2 as the heterogeneous nuclei of the phase in Al-alloy by first-principles. Wang [13] researched the preparation of the Fe-Ti-N master alloy using first-principles, in which the ferrite can be refined by TiN. Liu [14] studied the best geometric structure, thermodynamic property and electronic structure of NiAl (1 1 0)/Cr (1 1 0) interface based on a first-principles density functional plane-wave ultrasoft pseudopotential method, besides identified the interface stable structure thermodynamically and analyzed bonding characteristics among the interface atoms.…”

Section: Introductionmentioning

confidence: 99%