Microstructure and mechanical properties of BAS/SiC composites sintered by spark plasma sintering

被引：3

作者：

Ma, Jingmei ^{[1
]}

Ye, Feng ^{[2
]}

Hua, Zhong ^{[1
]}

机构：

[1] Jilin Normal Univ, Coll Phys, Siping 136000, Peoples R China

[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2013年 / 84卷

关键词：

SiC composite; Spark plasma sintering; Microstructure; FRACTURE-TOUGHNESS; SIC CERAMICS; PHASE; FABRICATION; RESISTANCE; EVOLUTION;

D O I：

10.1016/j.matchar.2013.06.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-density BAS/SiC composites were obtained from beta-SiC starting powder by the spark plasma sintering technique. Various physical properties of the BAS/SiC composites were investigated in detail, such as densification, phase analysis, microstructures and mechanical properties. The results demonstrated that the relative density of the BAS/SiC composites reached over 99.4% at 1900 degrees C. The SiC grains were uniformly distributed in the continuous BAS matrix which is probably because of complete infiltration of the SiC particles in BAS liquid-phase formed during sintering. The pull-out of SiC particles, crack deflection and bridging were observed as the major toughening mechanism. The flexural strength and fracture toughness of the BAS/SiC composites sintered at 1900 degrees C were up to 560 MPa and 7.0 MPa.m(1/2), respectively. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：100 / 104

页数：5

共 30 条

[1] A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].

ANSTIS, GR ;

CHANTIKUL, P ;

LAWN, BR ;

MARSHALL, DB .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :533-538

[2] KINETIC-STUDY ON THE HEXACELSIAN-CELSIAN PHASE-TRANSFORMATION - COMMENT [J].

BANSAL, NP ;

DRUMMOND, CH .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1994, 13 (06) :423-424

[3] Effect of the nature of the intergranular phase on sliding-wear resistance of liquid-phase-sintered α-SiC [J].

Borrero-Lopez, Oscar ;

Ortiz, Angel L. ;

Guiberteau, Fernando ;

Padture, Nitin P. .

SCRIPTA MATERIALIA, 2007, 57 (06) :505-508

[4] Phase, microstructure and properties evolution of fine-grained W-Mo-Ni-Fe alloy during spark plasma sintering [J].

Ding, L. ;

Xiang, D. P. ;

Li, Y. Y. ;

Zhao, Y. W. ;

Li, J. B. .

MATERIALS & DESIGN, 2012, 37 :8-12

[5] Room-temperature deformation micro-mechanisms of polycrystalline nickel processed by spark plasma sintering [J].

Dutel, G. -D. ;

Langlois, P. ;

Tingaud, D. ;

Dirras, G. .

MATERIALS CHARACTERIZATION, 2013, 79 :76-83

[6] FRACTURE TOUGHNESS DETERMINATIONS BY INDENTATION [J].

EVANS, AG ;

CHARLES, EA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1976, 59 (7-8) :371-372

[7] Study on microstructure and thermal conductivity of Spark Plasma Sintering AlN ceramics [J].

He, Xiulan ;

Ye, Feng ;

Zhang, Haijiao ;

Zhou, Zhiqiang .

MATERIALS & DESIGN, 2010, 31 (09) :4110-4115

[8] Effect of AlN additive on densification, microstructure and strength of liquid-phase sintered SiC ceramics by spark plasma sintering [J].

Hotta, Mikinori ;

Hojo, Junichi .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2009, 117 (1369) :1009-1012

[9]

Jang CW, 2002, J AM CERAM SOC, V85, P1281, DOI 10.1111/j.1151-2916.2002.tb00258.x

[10] Application of the glass-ceramic process for the fabrication of whisker reinforced celsian-composites [J].

Lansmann, V ;

Jansen, M .

JOURNAL OF MATERIALS SCIENCE, 2001, 36 (06) :1531-1538

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