Effect of La2O3 on the wear behavior of MoSi2 at high temperature

被引：13

作者：

Zhang Houan ^{[1
]}

Gu Siyong ^{[1
]}

Xie Nengping ^{[2
]}

机构：

[1] Xiamen Univ Technol, Inst Mat Preparat & Appl Technol, Xiamen 361024, Peoples R China

[2] Hunan Univ Sci & Technol, Coll Electromech Engn, Xiangtan 411201, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2011年 / 29卷 / 04期

基金：

中国国家自然科学基金;

关键词：

MoSi2 matrix composite; wear; high temperature; La2O3; SiC; rare earths; ABRASIVE WEAR; MOLYBDENUM DISILICIDE; REINFORCED MOSI2; COMPOSITES;

D O I：

10.1016/S1002-0721(10)60462-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Wear behaviors of MoS2, doped with La2O3 against SiC under different loads at 1000 degrees C in air were investigated by using an XP-5 type high temperature friction and wear tester. The worn surfaces and phases of the samples were analyzed by scanning electron microscopy (SEM) and X-ray diffraction, respectively. Results showed that the addition of La2O3 could obviously improve wear resistance of MoSi2. Because of the formation of MoO3 phase on the worn surface, La2O3/MoSi2 composite mainly exhibited oxidation and abrasive wear, which was different from the wear form of MoSi2 such as adhesion, oxidation and abrasion.

引用

页码：370 / 373

页数：4

共 15 条

[1] Abrasive wear behavior of a brittle matrix (MoSi2) composite reinforced with a ductile phase (Nb) [J].

Alman, DE ;

Hawk, JA .

WEAR, 2001, 251 :890-900

[2]

FENG ZZ, 2007, PREPARATION APPL HIG

[3] ABRASIVE WEAR BEHAVIOR OF MOSI(2)-NB COMPOSITES [J].

HAWK, JA ;

ALMAN, DE ;

STOLOFF, NS .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 31 (04) :473-478

[4] Abrasive wear behavior of a Si3N4-MoSi2 composite [J].

Hawk, JA ;

Alman, DE ;

Petrovic, JJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (05) :1297-1302

[5] Abrasive wear of Si3N4-MoSi2 composites [J].

Hawk, JA ;

Alman, DE ;

Petrovic, JJ .

WEAR, 1997, 203 :247-256

[6] A COMPARATIVE-STUDY OF THE ABRASIVE WEAR BEHAVIOR OF MOSI2 [J].

HAWK, JA ;

ALMAN, DE .

SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (05) :725-730

[7] Performance of monolithic and TiB2 reinforced MoSi2 in dry sliding contact with steel [J].

Jayasingh, EM ;

Tantri, PS ;

Bhaskaran, TA ;

Biswas, SK ;

Ramasesha, SK .

MATERIALS LETTERS, 2002, 53 (4-5) :379-383

[8] PROCESSING OF MOLYBDENUM DISILICIDE [J].

JENG, YL ;

LAVERNIA, EJ .

JOURNAL OF MATERIALS SCIENCE, 1994, 29 (10) :2557-2571

[9] Study of wear resistant MoSi2-SiC composites fabricated by self-propagating high temperature synthesis casting [J].

La, PQ ;

Xue, QJ ;

Liu, WM .

INTERMETALLICS, 2003, 11 (06) :541-550

[10] Wear behavior of TiC-MoSi2 composites [J].

Sun, L ;

Pan, JS ;

Lin, CJ .

MATERIALS LETTERS, 2003, 57 (07) :1239-1243

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