A new route for the synthesis of NdB6 powder from Nd2O3–B4C system

Liu, Y.; Li, Wen; Qin, Jian; Zhang, D.

doi:10.1016/j.jallcom.2006.05.084

Cited by 32 publications

(19 citation statements)

References 10 publications

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“…Significant efforts have been directed toward the preparation of boride materials, 13 which for hexaborides include the molten salt technique, 14 borothermic reduction of oxides at varying pressures, 15–17 aluminothermic reduction using aluminum melts, 18 synthesis in autoclaves, 19,20 and thermal plasmas 21 . However, the synthesis temperatures and processing times are always significant, with the lowest synthesis temperature of 400°C achieved only by using long processing times (∼4 h) in an autoclave 20 .…”

Section: Introductionmentioning

confidence: 99%

Unique Preparation of Hexaboride Nanocubes: A First Example of Boride Formation by Combustion Synthesis

Kanakala

Rojas-George

Graeve

2010

Journal of the American Ceramic Society

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Nanocubes of LaB6 and Sm0.8B6 have been synthesized using low‐temperature combustion synthesis, a technique that had only been used previously for the preparation of oxides. The hexaboride nanocubes were prepared using lanthanum nitrate or samarium nitrate, carbohydrazide, and boron powders. The furnace temperature for synthesis was kept at 320°C, lower than the typical temperature values used in combustion processes for the preparation of oxides. After synthesis, the nanocubes were characterized using X‐ray diffraction, scanning electron microscopy, and X‐ray photoelectron spectroscopy. The combustion process was analyzed using differential scanning calorimetry, which shows that the formation of the carbohydrazide and nitrate melts as well as the formation of a complex between metal ions and carbohydrazide are crucial steps for the reaction. The technique results in high‐purity powders with a unique cubic morphology, in which the corners of the cubes can be used as point sources for efficient electron emission.

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Section: Introductionmentioning

confidence: 99%

Unique Preparation of Hexaboride Nanocubes: A First Example of Boride Formation by Combustion Synthesis

Kanakala

Rojas-George

Graeve

2010

Journal of the American Ceramic Society

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“…In this paper, we succeeded in preparing in situ (TiB + TiC + Nd 2 O 3 )/Ti composites by powder metallurgy. And the low-cost reactant NdB 6 was adopted, which was synthesized economically in previous work and reported [18]. Ultra-fine ceramic particulate reinforcements were in situ synthesized.…”

Section: Introductionmentioning

confidence: 99%

In situ preparation of (TiB + TiC + Nd2O3)/Ti composites by powder metallurgy

Qin

Lü

et al. 2009

Journal of Alloys and Compounds

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“…However, heating rate effect was not widely explored. The typical heating rate is as low as1.7℃/s [27] or even less [32]. As a result, γ-TiAl alloys with coarse lamellar colonies were often obtained, even though the starting powders were managed to be refined.…”

Section: Application To Synthesis Of γ-Tial Alloysmentioning

confidence: 99%