DOI: 10.1111/j.1151-2916.2001.tb01083.x. Synthesis of Calcium Hexaboride Powder via the Reaction of Calcium Carbonate with Boron Carbide and Carbon

Synthesis of Calcium Hexaboride Powder via the Reaction of Calcium Carbonate with Boron Carbide and Carbon

10.1111/j.1151-2916.2001.tb01083.x

Crossref journal-article

Wiley

Journal of the American Ceramic Society (311)

Abstract

The synthesis of calcium hexaboride (CaB6) powder via the reaction of calcium carbonate (CaCO3) with boron carbide (B4C) and carbon has been investigated systematically in the present study. The influences of heating temperature and holding time on the reaction products have been studied using X‐ray diffractometry, and the morphologies of CaB6 obtained at various temperatures and holding times have been investigated via scanning electron microscopy. The interaction in the CaCO3–B4C–carbon system by which CaB6 is formed is a solid‐phase process that passes through the transition phases Ca3B2O6 and CaB2C2. The optimal conditions for CaB6 synthesis are a holding time of 2.5 h at a temperature of 1673 K, under vacuum (a pressure of 10−2 Pa). CaB6 powder has the same morphology as B4C, and the properties and the shape of CaB6 powders can be improved by choosing good‐quality raw materials.

Bibliography

Zheng, S., Min, G., Zou, Z., Yu, H., & Han, J. (2001). Synthesis of Calcium Hexaboride Powder via the Reaction of Calcium Carbonate with Boron Carbide and Carbon. Journal of the American Ceramic Society, 84(11), 2725â2727. Portico.

Authors 5

Shuqi Zheng (first)
Guanghui Min (additional)
Zengda Zou (additional)
Huashun Yu (additional)
Jiande Han (additional)

References 7 Referenced 34

10.1016/0304-8853(92)90563-4
10.1016/S0039-6028(98)00936-4
{'issue': '1', 'key': 'e_1_2_1_4_2', 'first-page': '231', 'article-title': 'Oriented Structure and Crystallography of Directionally Solidified LaB6‐ZrB2 Eutectic', 'volume': '81', 'author': 'Chen C. M.', 'year': '1998', 'journal-title': 'J. Am. Ceram. Soc.'} / J. Am. Ceram. Soc. / Oriented Structure and Crystallography of Directionally Solidified LaB6‐ZrB2 Eutectic by Chen C. M. (1998)
{'key': 'e_1_2_1_5_2', 'first-page': '16', 'article-title': 'The Sintering of Ultrafine Titanium Diboride Powders and Titanium Diboride‐Calcium Hexaboride Compositions” (in Russ.)', 'volume': '11', 'author': 'Serebryakora T. I.', 'year': '1997', 'journal-title': 'Poroshk. Metall.'} / Poroshk. Metall. / The Sintering of Ultrafine Titanium Diboride Powders and Titanium Diboride‐Calcium Hexaboride Compositions” (in Russ.) by Serebryakora T. I. (1997)
10.1023/A:1021880906030
10.1002/srin.199401063 / Steel Res. / Tests on the Oxidation‐Inhibiting Effect of CaB6 in Refractory MgO‐C Materials by Tadeusz R. L. (1994)
{'key': 'e_1_2_1_8_2', 'first-page': '52', 'article-title': 'Effect of Production Procedure on Structure Formation and Fracture of CaB6‐TiB2 Pseudo Alloy” (in Russ.)', 'volume': '10', 'author': 'Paderno V. N.', 'year': '1992', 'journal-title': 'Poroshk. Metall.'} / Poroshk. Metall. / Effect of Production Procedure on Structure Formation and Fracture of CaB6‐TiB2 Pseudo Alloy” (in Russ.) by Paderno V. N. (1992)

Dates

Type	When
Created	16 years, 7 months ago (Jan. 6, 2009, 3:43 p.m.)
Deposited	1 year, 9 months ago (Nov. 23, 2023, 2:21 p.m.)
Indexed	1 year, 7 months ago (Jan. 20, 2024, 5:35 a.m.)
Issued	23 years, 9 months ago (Nov. 1, 2001)
Published	23 years, 9 months ago (Nov. 1, 2001)
Published Online	20 years, 8 months ago (Dec. 20, 2004)
Published Print	23 years, 9 months ago (Nov. 1, 2001)

Funders 0

None

BibTeX

@article{Zheng_2001, title={Synthesis of Calcium Hexaboride Powder via the Reaction of Calcium Carbonate with Boron Carbide and Carbon}, volume={84}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.2001.tb01083.x}, DOI={10.1111/j.1151-2916.2001.tb01083.x}, number={11}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Zheng, Shuqi and Min, Guanghui and Zou, Zengda and Yu, Huashun and Han, Jiande}, year={2001}, month=nov, pages={2725–2727} }

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