TAILORING STRUCTURE AND PROPERTIES OF COMPOSITES SYNTHESIZED IN-SITU USING DISPLACEMENT-REACTIONS

被引：37

作者：

HENAGER, CH ^{[1
]}

BRIMHALL, JL ^{[1
]}

BRUCH, LN ^{[1
]}

机构：

[1] UNIV WASHINGTON, DEPT MAT SCI & ENGN, SEATTLE, WA 98195 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1995年 / 195卷 / 1-2期

关键词：

COMPOSITES; DISPLACEMENT; TAILORING STRUCTURE;

D O I：

10.1016/0921-5093(94)06506-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Displacement reactions can produce in situ intermetallic and ceramic matrix composites in a process where an intermetallic or ceramic phase(s) and a potential reinforcing phase(s) are grown together during a reactive phase transformation. Various forms of interpenetrating-phase and dispersed-phase microstructures are produced by means of these reactions. It is also apparent that both composition and morphology can be manipulated to some degree in order to tailor composite structures. The composition and morphology of MoSi2 reinforced with SiC particles was explored over a wide range by controlling starting reactant compositions and hot-pressing conditions. Preliminary results of a model for the formation of the MoSi2/SiC composite are presented in which both diffusion and interfacial reactions are included. Strength in bending and chevron-notch fracture toughness were determined as a function of temperature and composition and the measured properties are discussed with regard to the observed microstructures. A novel, graded composite structure in the NiAl/Ni3Al/Ni:Al2O3 system is also discussed.

引用

页码：65 / 74

页数：10

共 21 条

[1] STRENGTHENING OF DISCONTINUOUSLY REINFORCED MOSI2 COMPOSITES AT HIGH-TEMPERATURES [J].

AIKIN, RM .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 155 (1-2) :121-133

[2] ON THE DUCTILE-TO-BRITTLE TRANSITION-TEMPERATURE IN MOSI2 [J].

AIKIN, RM .

SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (07) :1025-1030

[3] PREPARATION OF MOSI2/SIC COMPOSITES FROM ELEMENTAL POWDERS BY REACTIVE CO-SYNTHESIS [J].

ALMAN, DE ;

STOLOFF, NS .

SCRIPTA METALLURGICA ET MATERIALIA, 1993, 28 (12) :1525-1530

[4] HARDNESS AND FRACTURE-TOUGHNESS OF SIC-PARTICLE-REINFORCED MOSI2 COMPOSITES [J].

BHATTACHARYA, AK ;

PETROVIC, JJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1991, 74 (10) :2700-2703

[5] APPLICATION OF TERNARY PHASE-DIAGRAMS TO THE DEVELOPMENT OF MOSI2-BASED MATERIALS [J].

BOETTINGER, WJ ;

PEREPEZKO, JH ;

FRANKWICZ, PS .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 155 (1-2) :33-44

[6]

CARTER DH, 1989, 3RD P INT S CER MAT, P977

[7] SYNTHESIS OF A MOSI2/SIC COMPOSITE INSITU USING A SOLID-STATE DISPLACEMENT REACTION BETWEEN MO2C AND SI [J].

HENAGER, CH ;

BRIMHALL, JL ;

HIRTH, JP .

SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (04) :585-589

[8] SYNTHESIS OF A MOSI2-SIC COMPOSITE INSITU USING A SOLID-STATE DISPLACEMENT REACTION [J].

HENAGER, CH ;

BRIMHALL, JL ;

HIRTH, JP .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 155 (1-2) :109-114

[9] SOLID-STATE DISPLACEMENT REACTION SYNTHESIS OF INTERPENETRATING-PHASE NI-AL/AL2O3 COMPOSITES [J].

HENAGER, CH ;

BRIMHALL, JL .

SCRIPTA METALLURGICA ET MATERIALIA, 1993, 29 (12) :1597-1602

[10]

HENAGER CH, 1992, MATER RES SOC SYMP P, V273, P281, DOI 10.1557/PROC-273-281

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