Thermal syntheses of magnesium borate compounds from high-energy milled MgO-B2O3 and MgO-B(OH)3 mixtures

A. Obut

doi:10.1016/j.jallcom.2007.03.018

Thermal syntheses of magnesium borate compounds from high-energy milled MgO-B₂O₃ and MgO-B(OH)₃ mixtures

A. Obut

Division of Mineral Processing

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The comparative effects of high-energy milling on solid-state thermal syntheses of different magnesium borate compounds from MgO-B₂O₃ and MgO-B(OH)₃ mixtures were investigated for initial MgO:B₂O₃ mole ratios of 1:0.125, 1:0.25, 1:0.5, 1:1, 1:2 at temperatures between 500 and 900 °C. It was observed that magnesium oxide-boric acid mixtures react only by high-energy milling to form hydrous magnesium borates. Following high-energy milling of the initial solid mixtures, anhydrous magnesium borate compounds started to form at temperatures as low as 500 °C, and purer and more crystalline phases were obtained at higher temperatures compared to unmilled compositions.

Original language	English
Pages (from-to)	86-89
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	457
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2007.03.018
Publication status	Published - 12 Jun 2008

Keywords

Inorganic materials
Mechanochemical processing
Oxide materials
Solid-state reactions

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10.1016/j.jallcom.2007.03.018

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abstract = "The comparative effects of high-energy milling on solid-state thermal syntheses of different magnesium borate compounds from MgO-B2O3 and MgO-B(OH)3 mixtures were investigated for initial MgO:B2O3 mole ratios of 1:0.125, 1:0.25, 1:0.5, 1:1, 1:2 at temperatures between 500 and 900 °C. It was observed that magnesium oxide-boric acid mixtures react only by high-energy milling to form hydrous magnesium borates. Following high-energy milling of the initial solid mixtures, anhydrous magnesium borate compounds started to form at temperatures as low as 500 °C, and purer and more crystalline phases were obtained at higher temperatures compared to unmilled compositions.",

keywords = "Inorganic materials, Mechanochemical processing, Oxide materials, Solid-state reactions",

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T1 - Thermal syntheses of magnesium borate compounds from high-energy milled MgO-B2O3 and MgO-B(OH)3 mixtures

AU - Obut, A.

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N2 - The comparative effects of high-energy milling on solid-state thermal syntheses of different magnesium borate compounds from MgO-B2O3 and MgO-B(OH)3 mixtures were investigated for initial MgO:B2O3 mole ratios of 1:0.125, 1:0.25, 1:0.5, 1:1, 1:2 at temperatures between 500 and 900 °C. It was observed that magnesium oxide-boric acid mixtures react only by high-energy milling to form hydrous magnesium borates. Following high-energy milling of the initial solid mixtures, anhydrous magnesium borate compounds started to form at temperatures as low as 500 °C, and purer and more crystalline phases were obtained at higher temperatures compared to unmilled compositions.

AB - The comparative effects of high-energy milling on solid-state thermal syntheses of different magnesium borate compounds from MgO-B2O3 and MgO-B(OH)3 mixtures were investigated for initial MgO:B2O3 mole ratios of 1:0.125, 1:0.25, 1:0.5, 1:1, 1:2 at temperatures between 500 and 900 °C. It was observed that magnesium oxide-boric acid mixtures react only by high-energy milling to form hydrous magnesium borates. Following high-energy milling of the initial solid mixtures, anhydrous magnesium borate compounds started to form at temperatures as low as 500 °C, and purer and more crystalline phases were obtained at higher temperatures compared to unmilled compositions.

KW - Inorganic materials

KW - Mechanochemical processing

KW - Oxide materials

KW - Solid-state reactions

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IS - 1-2

ER -

Thermal syntheses of magnesium borate compounds from high-energy milled MgO-B₂O₃ and MgO-B(OH)₃ mixtures

Abstract

Keywords

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