Fabrication of TiN/cBN and TiC/diamond coated particles by titanium deposition process

Daoush, Walid M.; Park, Hee S.; Hong, Soon Hyung

doi:10.1016/s1003-6326(14)63502-0

Cited by 29 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is due to the formation of the Ni-Cu solid solution between the copper and nickel fine powder during the sintering at 1000 C [32][33][34]. On the other hand, as reported in our previous report, the boron nitride can be interacting at high temperature with some metal matrix to form a compound layer composed of metal borides as well as metal nitrides in the interface region between the surface of the boron nitride nanoparticles and the metal matrix [14]. The formation of the compound layer is due to the in-situ transformation reaction between the metal matrix and the surface of the nanosized boron nitride particles under the high temperature during the sintering process.…”

Section: Methods Of Assessment Of Powders and Bn/20ni-cu Compositesmentioning

confidence: 80%

See 1 more Smart Citation

Microstructure and properties of BN/Ni-Cu composites fabricated by powder technology

El-Tantawy

Daoush

El-Nikhaily

2018

Journal of Experimental Nanoscience

Self Cite

View full text Add to dashboard Cite

Microsize Powders of Ni and Cu were prepared by water atomization technique to fabricate metal matrix composites containing various percentages of nanosized boron nitride particles (1, 2, 3, 4, 5 wt. % of BN in a matrix containing (20 wt. %Ni and 80 wt. %Cu). The prepared mixtures were cold compacted under 400 MPa, and sintered for 2 h at 1000 C in a controlled atmosphere of 3:2 N 2 /H 2 gas mixtures. The microstructure and the chemical composition of the prepared powders as well as the consolidated composites were investigated by X-ray diffraction as well as field emission scanning electron microscope (FESEM) equipped with an energy dispersive spectrometer (EDS). The produced Cu and Ni powders have spheroid shape of size less than 100 microns, but the investigated BN has an equiaxed particle shape and particle size of » 500 nm. It has been also observed that BN and Ni particles were homogeneously distributed in the Cu matrix of the present BN/NiCu composites. The density, electrical resistivity, saturation magnetization and hardness of the composites were measured. It was observed that, by increasing BN content, the relative density was decreased, while the saturation magnetization, electrical resistivity and hardness were increased.

show abstract

Section: Methods Of Assessment Of Powders and Bn/20ni-cu Compositesmentioning

confidence: 80%

“…Such sintering conditions are attained using ultrahigh pressure devices. In addition, when additives such as powders of Ni, Al and Cu, are added to cBN particles for solid phase sintering, their effect as sintering additives or binding materials is limited [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of BN/Ni-Cu composites fabricated by powder technology

El-Tantawy

Daoush

El-Nikhaily

2018

Journal of Experimental Nanoscience

Self Cite

View full text Add to dashboard Cite

show abstract

“…On the other hand, a molten salt reaction is a method that uses one or more salts with a low melting point as a reaction medium to form thin films on the surface of materials through a disproportionation reaction [18][19][20]. The molten salt reaction method has several unique characteristics-for instance, there are no special requirements for the surface roughness of the substrate material-and the bonding between the film and the substrate is firm [21].…”

Section: Introductionmentioning

confidence: 99%

Titanium Oxide Coatings Deposited on MnZn Ferrite by a Molten Salt Reaction

et al. 2022

View full text Add to dashboard Cite

Using molten salt reactions, Ti oxide coatings were successfully deposited on MnZn ferrite in a NaCl–KCl–K2TiF6 melt. The film formed on the surface of MnZn ferrite had a thickness of up to 20 μm and was composed of Ti oxides. The electric conductivity of the coatings was contributed to by the component Ti2O3 and depended on the concentration of Ti2O3 in the film. When the Ti2O3 content in the film increased, the surface resistance dropped to the order of 10−1 Ω/□. The conductive film had the potential to be welded to the metal electrode, thus confirming that the molten salt reaction method could be used as a pre-treatment to realize the metallization of MnZn ferrite.

show abstract

Section: Introductionmentioning

confidence: 99%

Microstructure, Physical Properties and Hardness of Cbn/Ni-Cu Composites Fabricated by Powder Technology

2015

Egyptian Journal of Solids

View full text Add to dashboard Cite

Powders of Ni and Cu were produced by water atomization technique to fabricate metal matrix composites containing various percentages of cubic boron nitride powders 1, 2, 3, 4, 5 wt.% cBN in a matrix containing 20 wt.%Ni and 80 wt.%Cu. Prepared mixtures were cold compacted under 400 MPa, and sintered for 2h at 1000oC in controlled atmosphere of 3:2 N2/H2 gas mixture. The microstructure and the chemical composition of the prepared powders as well as the consolidated composites were investigated by X-ray diffraction as well as field emission scanning electron microscope (FESEM) equipped with an energy dispersive spectrometer (EDS). The produced Cu and Ni powders have spheroid shape of size less than 100 micron, but the investigated cBN has a flake like shape with sharp edges and particle size less than 1 micron. It has been also observed that cBN and Ni particles were homogeneously distributed in the Cu matrix of the present cBN/Ni-Cu composites. The density, electrical resistivity, saturation magnetization and hardness of the composites were measured. It was observed that, by increasing cBN wt.%, the relative density was decreased, while the saturation magnetization, electrical resistivity and hardness were increased.

show abstract

Fabrication of TiN/cBN and TiC/diamond coated particles by titanium deposition process

Cited by 29 publications

References 24 publications

Microstructure and properties of BN/Ni-Cu composites fabricated by powder technology

Microstructure and properties of BN/Ni-Cu composites fabricated by powder technology

Titanium Oxide Coatings Deposited on MnZn Ferrite by a Molten Salt Reaction

Microstructure, Physical Properties and Hardness of Cbn/Ni-Cu Composites Fabricated by Powder Technology

Contact Info

Product

Resources

About