Fracture Modes in MoSi sub 2
The room-temperature fracture behavior of polycrystalline MoSi sub 2 was characterized using Vickers indentation fracture. Fracture analysis was aided by the optically active grain structure of MoSi sub 2 revealed under polarized light. Radial crack propagation from indentations was found to be pred...
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| Veröffentlicht in: | Journal of the American Ceramic Society 1992-06, Vol.75 (6), p.1682-1684 |
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| container_issue | 6 |
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| container_title | Journal of the American Ceramic Society |
| container_volume | 75 |
| creator | Wade, R K Petrovic, J J |
| description | The room-temperature fracture behavior of polycrystalline MoSi sub 2 was characterized using Vickers indentation fracture. Fracture analysis was aided by the optically active grain structure of MoSi sub 2 revealed under polarized light. Radial crack propagation from indentations was found to be predominantly transgranular. The approximate indentation fracture toughness of MoSi sub 2 was 3 MPa /m exp 0.5 , while the measured hardness was 8.7 GPa. Fracture behavior is believed to be controlled by anisotropy and cleavage energy of the tetragonal MoSi sub 2 crystal structure. |
| doi_str_mv | 10.1111/j.1151-2916.1992.tb04246.x |
| format | Article |
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Fracture analysis was aided by the optically active grain structure of MoSi sub 2 revealed under polarized light. Radial crack propagation from indentations was found to be predominantly transgranular. The approximate indentation fracture toughness of MoSi sub 2 was 3 MPa /m exp 0.5 , while the measured hardness was 8.7 GPa. 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Fracture analysis was aided by the optically active grain structure of MoSi sub 2 revealed under polarized light. Radial crack propagation from indentations was found to be predominantly transgranular. The approximate indentation fracture toughness of MoSi sub 2 was 3 MPa /m exp 0.5 , while the measured hardness was 8.7 GPa. Fracture behavior is believed to be controlled by anisotropy and cleavage energy of the tetragonal MoSi sub 2 crystal structure.</abstract><cop>United States</cop><doi>10.1111/j.1151-2916.1992.tb04246.x</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0002-7820 |
| ispartof | Journal of the American Ceramic Society, 1992-06, Vol.75 (6), p.1682-1684 |
| issn | 0002-7820 1551-2916 |
| language | eng |
| recordid | cdi_osti_scitechconnect_7306663 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | 360103 - Metals & Alloys- Mechanical Properties 360104 - Metals & Alloys- Physical Properties 664400 - Experimentally Derived Information on Atomic & Molecular Properties- (1992-) ANISOTROPY ATOMIC AND MOLECULAR PHYSICS BEAMS CRACK PROPAGATION CRYSTAL STRUCTURE CRYSTALS FRACTURE MECHANICS GRAIN BOUNDARIES MATERIALS SCIENCE MECHANICS MICROSTRUCTURE MOLYBDENUM COMPOUNDS MOLYBDENUM SILICIDES POLARIZED BEAMS POLYCRYSTALS REFRACTORY METAL COMPOUNDS SILICIDES SILICON COMPOUNDS TRANSITION ELEMENT COMPOUNDS VICKERS HARDNESS |
| title | Fracture Modes in MoSi sub 2 |
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