Microstructural evolution of nanostructured Ti0.9Al0.1N prepared by reactive ball-milling

Bhaskar, Ujjwal Kumar; Bid, S.; Pradhan, S.K.

doi:10.1016/j.jallcom.2010.09.117

Cited by 10 publications

(4 citation statements)

References 44 publications

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“…During the ball milling process, the particles sizes of powders experience a typical evolution, namely dramatic increase at the early stage, gradual decrease after a certain time and achieving a stable level at last. This result agrees well with the conclusions in previous reports [8,9] . At the early stage, high energy colliding and squeezing of ball/ball and ball/wall result in a severe plastic deformation of the powders and the deformed particles are cold-welded to large lamellar composite particles, which are usually much coarser than the original powders.…”

Section: Morphology Evolution Of the Powderssupporting

confidence: 94%

Effect of Ball Milling Process on the in Situ Synthesis of Nano-TiB Whiskers

Liu

Lianfeng

et al. 2016

Rare Metal Materials and Engineering

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Ball milling process has an important effect on the microstructure and the morphology of final powder products and the corresponding as-sintered samples. In the present study, Ti-7Al-0.2B (wt%) mixed powder was ball-milled by low-energy and high-energy types of ball mills, and then the milled powder was sintered by hot-pressing. On this basis, the morphology evolution of the powder was analyzed, and the microstructures of the reinforcements in the as-sintered composite were investigated. Research results show that in the low-energy ball milling process, mechanical alloying occurs between the powder particles. TiB whiskers formed in sintering process are long and thin without linked coarse crystals bars or clusters. Under the high-energy milling, the average particle size of the powder is refined remarkably to 1 μm, and Ti(Al) supersaturated solid solution or even amorphous structure is formed during the milling process. In the following sintering process, nano-scale TiB whiskers are synthesized and they are uniformly distributed in the matrix.

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Section: Morphology Evolution Of the Powderssupporting

confidence: 94%

Effect of Ball Milling Process on the in Situ Synthesis of Nano-TiB Whiskers

Liu

Lianfeng

et al. 2016

Rare Metal Materials and Engineering

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“…At the end of the work, the results obtained can be compared with those described in prior literature. Table 3 shows the theoretical and experimental data for the similar metastable Ti 0.7 Ni 0.3 N phase of various modifications [17]. Brief information on the complex titanium-cobalt nitride Ti 0.7 Co 0.3 N obtained by plasma-chemical synthesis in a low-temperature nitrogen plasma with subsequent recondensation of gaseous nitrogen in a rotating cylinder is also presented.…”

Section: Resultsmentioning

confidence: 99%

“…One of the first studies of the crystal-chemical features of complexly substituted hexagonal nitrides based on some elements of IV-VIA subgroups of the Periodic Table are Schonberg's works [14][15][16], where Ni and Co served as substitute elements in the metal sublattice. Later, nanocrystalline Ti 0.7 Ni 0.3 N with a cubic modification was obtained and certified by X-ray diffraction and high-resolution transmission electron microscopy (HRTEM) [17]. In [18], plasma-chemical synthesis of titanium nickelide was carried out according to the plasma recondensation scheme in a low-temperature nitrogen plasma.…”

Section: Introductionmentioning

confidence: 99%

Formation of titanium-cobalt nitride Ti0.7Co0.3N under plasma-chemical synthesis conditions in a low-temperature nitrogen plasma

Avdeeva¹,

Luzhkova²,

Ermakov³

2021

Nanosystems: Phys. Chem. Math.

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“…solid solution. The calculations were carried out in the framework of Density Functional Theory (DFT), using the full-potential method with Augmented Plane Waves + local orbitals (APW+ lo) formalism, as implemented in the WIEN 2k code [25][26][27][28].…”

Section: Resultsmentioning

confidence: 99%

Thermal Decomposition of Supersaturated Ti<sub>1-x</sub>Al<sub>x</sub>N Solid Solution Synthesized by High-Energy Milling

Radune

Zinigrad

Fuks

et al. 2016

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Supersaturated titanium-aluminum nitride (Ti1-xAlxN) is a very attractive material for a wide range of applications due to its high oxidation and wear resistance accompanied by high strength, hardness, thermal conductivity and thermal shock resistance. Currently, its applications are limited to coatings obtained by physical or chemical deposition. Bulk materials based on Ti1-xAlxN may be fabricated by powder metallurgy approach using powders synthesized by high-energy ball milling (HEBM), which composition corresponds to supersaturated Ti1-xAlxN solid solution. In the present study, thermal stability of the supersaturated Ti1-xAlxN solid solution was investigated. According to the quasi-binary TiN-AlN phase diagram, constructed using density functional theory (DFT) analysis, the concentration ranges, where decomposition takes place through spinodal decomposition or through nucleation and growth, were determined. Experimental study on thermal stability of solid Ti1-xAlxN solution powder was conducted by means of differential scanning calorimetry (DSC), Brunauer-Emmited-Teller (BET) and XRD. The results indicated that spinodal decomposition of Ti1-xAlxN starts at 800°C, while at temperature higher than 1300°C regular decomposition (nucleation and growth) is occur.

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Microstructural evolution of nanostructured Ti0.9Al0.1N prepared by reactive ball-milling

Cited by 10 publications

References 44 publications

Effect of Ball Milling Process on the in Situ Synthesis of Nano-TiB Whiskers

Effect of Ball Milling Process on the in Situ Synthesis of Nano-TiB Whiskers

Formation of titanium-cobalt nitride Ti0.7Co0.3N under plasma-chemical synthesis conditions in a low-temperature nitrogen plasma

Thermal Decomposition of Supersaturated Ti<sub>1-x</sub>Al<sub>x</sub>N Solid Solution Synthesized by High-Energy Milling

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