Oxidation resistance of two TiB2-based cermets

被引：15

作者：

Barandika, MG

Echeberría, JJ

Castro, F

机构：

[1] Univ Basque Country, Fac Farm, Dept Quim Inorgan, E-01080 Vitoria, Spain

[2] CEIT, Dept Mat, E-20009 San Sebastian, Spain

来源：

MATERIALS RESEARCH BULLETIN | 1999年 / 34卷 / 07期

关键词：

composites; structural materials; electron diffraction; electron microscopy;

D O I：

10.1016/S0025-5408(99)00106-3

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The oxidation kinetics of two TiB2 cermets containing Fe-Ni-Al-ferritic and stainless steel binder phases has been determined in air at temperatures in the range of 700-1000 degrees C for up to 70 h. Mass gain records as a function of time and temperature showed two kinetic ranges, a parabolic one up to 775 degrees C and a linear one above 800 degrees C. Activation energies were observed to be 153-165 and 110-118 kJ.mol(-1) for the parabolic and linear ranges, respectively. The oxidation products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results are compared to those reported for similar materials. (C) 1999 Elsevier Science Ltd.

引用

页码：1001 / 1011

页数：11

共 11 条

[1]

BARANDIKA M G, 1994, MET POWDER REP, V49, P10

[2]

Oxidation resistance and microstructure of the oxide layers for TiB2-based cermets [J].

Barandika, MG ;

Echeberria, JJ ;

Sanchez, JM ;

Castro, F .

JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (08) :1851-1857

[3]

HIGH-TEMPERATURE OXIDATION RESISTANCE AND MICROSTRUCTURE OF THE OXIDE-FILMS IN SILICON-NITRIDE CERAMICS [J].

CASTRO, F ;

ECHEBERRIA, J ;

FUENTES, M .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1992, 11 (02) :101-105

[4]

ECHEBERRIA J, 1989, P 1 EUR CER SOC C LO, V3, P527

[5]

New binder phases for the consolidation of TiB2 hardmetals [J].

Gonzalez, R ;

Barandika, MG ;

Ona, D ;

Sanchez, JM ;

Villellas, A ;

Valea, A ;

Castro, F .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 216 (1-2) :185-192

[6]

OXIDATION OF TITANIUM DIBORIDE AND ZIRCONIUM DIBORIDE AT HIGH TEMPERATURES [J].

IRVING, RJ ;

WORSLEY, IG .

JOURNAL OF THE LESS-COMMON METALS, 1968, 16 (02) :103-&

[7]

Knacke O., 1991, Thermochemical Properties of Inorganic Substances, V2nd

[8]

Meyer R., 1969, B SOC FR CERAM E, V172, P59

[9]

MUNSTER A, 1959, Z ELEKTROCHEM, V63, P807

[10]

MUNSTER A, 1960, Z PHYS CHEM, V25, P116

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