Preparation and properties of MoSi2 composites reinforced by TiC, TiCN, and TiB2
- 1. Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)
- 2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)
- 3. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000 (China) and Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)
Description
Molybdenum disilicide (MoSi2)-based composites reinforced by TiC, TiCN, and TiB2 were fabricated by hot-pressing. The microstructures, the mechanical properties at room temperature and the tribological properties of these materials were characterized. MoSi2-based composites reinforced by TiC, TiCN, and TiB2 exhibited higher microhardness (HV) and bending strength than that of monolithic MoSi2. The wear behavior of monolithic MoSi2 and its composites for sliding against Ni-Cr alloy at room temperature have been correlated with their mechanical properties. At 600 deg. C, the tribo-oxidation together with the transfer of Ni-Cr alloy to the surface of MoSi2-based composites is found to be the predominating wear mechanisms. The morphology and chemistry of oxide layer have a role to play in the wear resistance of monolithic MoSi2 and its composites
Additional details
Identifiers
- DOI
- 10.1016/j.msea.2005.01.009;
- PII
- S0921-5093(05)00064-X;
Publishing Information
- Journal Title
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Journal Volume
- 396
- Journal Issue
- 1-2
- Journal Page Range
- p. 277-284
- ISSN
- 0921-5093
- CODEN
- MSAPE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38075972
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOYS; HOT PRESSING; MICROHARDNESS; MICROSTRUCTURE; MOLYBDENUM; MOLYBDENUM SILICIDES; MORPHOLOGY; OXIDATION; OXIDES; TITANIUM BORIDES; TITANIUM CARBIDES; WEAR; WEAR RESISTANCE
- Descriptors DEC
- BORIDES; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; FABRICATION; HARDNESS; MATERIALS WORKING; MECHANICAL PROPERTIES; METALS; MOLYBDENUM COMPOUNDS; OXYGEN COMPOUNDS; PRESSING; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; SILICIDES; SILICON COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.