PREPARATION OF SINGLE-PHASE CR7C3 BY ALUMINOTHERMIC REDUCTION

被引：8

作者：

BISWAS, A ^{[1
]}

NAIR, KU ^{[1
]}

BOSE, DK ^{[1
]}

机构：

[1] BHABHA ATOM RES CTR,DIV MET,HIGH TEMP MAT SECT,BOMBAY 400085,INDIA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 198卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(93)90163-H

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single-phase chromium carbide (Cr7C3) has been prepared by the aluminothermic reduction of calcined chromium oxide (Cr2O3) in the presence of carbon. Stoichiometric aluminium in the charge has been found to be adequate to form the desired chromium carbide. Additional heat required to make the reaction self-sustaining and achieve cleaner separation of the carbide has been provided by incorporating a chemical heat booster in the charge. The quality of the product has been examined by X-ray diffraction, chemical analysis and metallography.

引用

页码：181 / 185

页数：5

共 17 条

[1]

BELITSKUS D, 1972, JOM-J MIN MET MAT S, V24, P30

[2]

BLINKOV IV, 1989, IZV VYSSH WCHEBU ZAV, V3, P93

[3]

DAUTZENBERG W, 1972, METALLURGIE FERROLEG, P59

[4]

DAUTZENBERG W, 1974, ULMANS ENCY TECHNISC, V7, P351

[5]

HALL FH, 1985, ULMANS ENCY IND CHEM, V1, P447

[6]

KUBASCHEWSKI OK, 1979, METALLURGICAL THERMO, P213

[7]

McKenna P. M., 1968, US Patent, Patent No. [3,379,503, 3379503]

[8]

MCKENNA PM, 1976, Patent No. 1767067

[9]

MERZHANOV AG, 1981, NAUCHNYE OSNOVY MATE, P193

[10]

MOISSON H, 1893, CR HEBD ACAD SCI, V116, P349

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