Preparation of nano-size ZrB2 powder by self-propagating high-temperature synthesis

Çamurlu, H. Erdem; Maglia, Filippo

doi:10.1016/j.jeurceramsoc.2008.09.006

Cited by 107 publications

(56 citation statements)

References 15 publications

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“…For instance, TiB 2 , ZrB 2 , and HfB 2 have been obtained by self-propagating hightemperature synthesis (SHS) from their constituent elements [3][4][5][6]. This type of synthesis is characterized by its significant negative enthalpy and high adiabatic temperature (T ad ) of greater than 1800 K [7].…”

Section: Introductionmentioning

confidence: 99%

An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction

Jalaly

Bafghi

Tamizifar

et al. 2014

Journal of Alloys and Compounds

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Nanocrystalline zirconium diboride (ZrB 2 ) powder was produced by magnesiothermic reduction in the Mg/ZrO 2 /B 2 O 3 system. In this study, high-energy ball milling was used to generate the essential conditions to induce a mechanically induced self-sustaining reaction (MSR). The ignition time for ZrB 2 formation was found to be approximately 6 minutes. The mechanism for the formation of ZrB 2 in this system was determined by studying the relevant sub-reactions, the effect of stoichiometry, and the thermal behavior of the system.

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Section: Introductionmentioning

confidence: 99%

An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction

Jalaly

Bafghi

Tamizifar

et al. 2014

Journal of Alloys and Compounds

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“…Zirconium diboride can be synthesized by various techniques including solid state methods, liquid state methods and gas state methods [3]. Solid state synthesis of ZrB 2 can be achieved through several different routes including the reaction of elemental Zr and B [1,[4][5][6]; borothermic reduction of ZrO 2 [7,8]; carbothermic reduction of ZrO 2 and B 2 O 3 [9,10]; reduction of ZrO 2 by boron carbide [11][12][13]; and metallothermic reduction of ZrO 2 and B 2 O 3 [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Mechanosynthesis of nanocrystalline ZrB₂-based powders by mechanically induced self-sustaining reaction method

Jalaly

Bafghi

Tamizifar

et al. 2013

Advances in Applied Ceramics

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Preparation of nanocrystalline ZrB 2 -based powder by aluminothermic and magnesiothermic reductions in M/ZrO 2 /B 2 O 3 (M = Al or Mg) systems was investigated.In this research, high energy ball milling was employed to persuade necessary conditions for the occurrence of a mechanically induced self-sustaining reaction (MSR).The happening of MSR reactions was recorded by a noticeable pressure rise in the system during milling. Ignition times for ZrB 2 formation by aluminothermic and magnesiothermic reductions were found to be 13 and 6 minutes, respectively. Zirconium diboride formation mechanism in both systems was explained through the analysis of the relevant sub-reactions.

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“…Self-propagating high temperature synthesis (SHS) is used as an alternative technique to produce ultra-fine powders of zirconium-based composites [14][15][16]. Khanra et al [14] reported the synthesis of ZrB 2 fine powders using double combustion of ZrO 2 -Mg-H 3 BO 3 mixture.…”

Section: mentioning

confidence: 99%

“…Thus the addition of silicon is found to favour the reduction reaction to proceed to completion. Reactions (15) and (16) Fig. 8(a)) or by adding Si to ZRBC2.5 ( Fig.…”

Section: Effect Of Mg Contentmentioning

confidence: 99%

Thermite assisted synthesis of ZrB2 and ZrB2–SiC through B4C reduction of ZrO2 and ZrSiO4 in air

Krishnarao

Sankarasubramanian

2017

J Adv Ceram

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ZrB 2 and ZrB 2 -SiC powders have been produced by reducing ZrO 2 and ZrSiO 4 with B 4 C without using any furnace. Magnesium was added to the mixtures of (ZrO 2 +B 4 C) and (ZrSiO 4 +B 4 C). The reaction has been assisted by a floral thermite packed around the compacts. By introducing elemental Si into (ZrO 2 +B 4 C) mixture, composite powders of ZrB 2 -SiC formed. After leaching out MgO with suitable HCl water solution, the product was analysed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of Si, B 4 C, and Mg on the extent of formation of ZrB 2 , ZrB 2 -SiC, and other phases has been studied. Formation of nano-sized ZrB 2 and ZrB 2 -SiC composite powders was identified. The adaptability of the process for bulk production was examined.

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Preparation of nano-size ZrB2 powder by self-propagating high-temperature synthesis

Cited by 107 publications

References 15 publications

An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction

An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction

Mechanosynthesis of nanocrystalline ZrB₂-based powders by mechanically induced self-sustaining reaction method

Thermite assisted synthesis of ZrB2 and ZrB2–SiC through B4C reduction of ZrO2 and ZrSiO4 in air

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Preparation of nano-size ZrB2 powder by self-propagating high-temperature synthesis

Cited by 107 publications

References 15 publications

An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction

An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction

Mechanosynthesis of nanocrystalline ZrB2-based powders by mechanically induced self-sustaining reaction method

Thermite assisted synthesis of ZrB2 and ZrB2–SiC through B4C reduction of ZrO2 and ZrSiO4 in air

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Mechanosynthesis of nanocrystalline ZrB₂-based powders by mechanically induced self-sustaining reaction method