Oxidation modelling of a Si3N4-TiN ceramic : Microstructure and kinetic laws
The oxidation of a silicon nitride-titanium nitride ceramic was studied and an oxidation kinetic model was proposed. For temperatures < 1000 C, only the TiN phase was oxidised. The oxidation process was then controlled by oxygen diffusion through TiO2, described by a parabolic oxidation kinetic l...
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| Veröffentlicht in: | Ceramics international 2007-01, Vol.33 (7), p.1331-1339 |
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| container_title | Ceramics international |
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| creator | DESCHAUX-BEAUME, F FRETY, N CUTARD, T COLIN, C |
| description | The oxidation of a silicon nitride-titanium nitride ceramic was studied and an oxidation kinetic model was proposed. For temperatures < 1000 C, only the TiN phase was oxidised. The oxidation process was then controlled by oxygen diffusion through TiO2, described by a parabolic oxidation kinetic law. The process was more complex > 1000 C, because of the simultaneous oxidation of both Si3N4 and TiN phases. Three oxidation modes, controlled by distinct diffusion mechanisms, took place successively. In the first step, Si3N4 and TiN phases were independently oxidised, respectively into SiO2 and TiO2 phases. Si3N4 oxidation was controlled by oxygen diffusion through SiO2, while TiN oxidation was controlled by titanium diffusion through TiO2. In the second step, the TiN oxidation was controlled by oxygen diffusion through TiO2 and through SiO2 formed by Si3N4 oxidation. In the third step, oxidation of the TiN and Si3N4 phases was controlled by oxygen diffusion through the silica layer. Kinetic laws were proposed for each of these three oxidation modes. 34 refs. |
| doi_str_mv | 10.1016/j.ceramint.2006.04.016 |
| format | Article |
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For temperatures < 1000 C, only the TiN phase was oxidised. The oxidation process was then controlled by oxygen diffusion through TiO2, described by a parabolic oxidation kinetic law. The process was more complex > 1000 C, because of the simultaneous oxidation of both Si3N4 and TiN phases. Three oxidation modes, controlled by distinct diffusion mechanisms, took place successively. In the first step, Si3N4 and TiN phases were independently oxidised, respectively into SiO2 and TiO2 phases. Si3N4 oxidation was controlled by oxygen diffusion through SiO2, while TiN oxidation was controlled by titanium diffusion through TiO2. In the second step, the TiN oxidation was controlled by oxygen diffusion through TiO2 and through SiO2 formed by Si3N4 oxidation. In the third step, oxidation of the TiN and Si3N4 phases was controlled by oxygen diffusion through the silica layer. Kinetic laws were proposed for each of these three oxidation modes. 34 refs.</description><identifier>ISSN: 0272-8842</identifier><identifier>EISSN: 1873-3956</identifier><identifier>DOI: 10.1016/j.ceramint.2006.04.016</identifier><language>eng</language><publisher>Kidlington: Elsevier Science</publisher><subject>Applied sciences ; Building materials. Ceramics. 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For temperatures < 1000 C, only the TiN phase was oxidised. The oxidation process was then controlled by oxygen diffusion through TiO2, described by a parabolic oxidation kinetic law. The process was more complex > 1000 C, because of the simultaneous oxidation of both Si3N4 and TiN phases. Three oxidation modes, controlled by distinct diffusion mechanisms, took place successively. In the first step, Si3N4 and TiN phases were independently oxidised, respectively into SiO2 and TiO2 phases. Si3N4 oxidation was controlled by oxygen diffusion through SiO2, while TiN oxidation was controlled by titanium diffusion through TiO2. In the second step, the TiN oxidation was controlled by oxygen diffusion through TiO2 and through SiO2 formed by Si3N4 oxidation. In the third step, oxidation of the TiN and Si3N4 phases was controlled by oxygen diffusion through the silica layer. Kinetic laws were proposed for each of these three oxidation modes. 34 refs.</description><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Cermets, ceramic and refractory composites</subject><subject>Chemical industry and chemicals</subject><subject>Condensed Matter</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Materials Science</subject><subject>Other materials</subject><subject>Physics</subject><subject>Specific materials</subject><subject>Structural ceramics</subject><subject>Technical ceramics</subject><issn>0272-8842</issn><issn>1873-3956</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpFkM1OwzAQhC0EEqXwCsgXkDgkrOM4trlVFVCk0h4oZ8t1HHBJk2In_Lw9rlrgtNLst7OaQeicQEqAFNer1Fiv167p0gygSCFPo3yABkRwmlDJikM0gIxniRB5doxOQlhBJGQOAzSdf7lSd65t8LotbV275gW3Fdb4ydFZnizcDO_sDb7Bj874NnS-N13vLdZNid9cY7u4rPVnOEVHla6DPdvPIXq-u12MJ8l0fv8wHk0TQ6XokmWREWlKy0BIJjhnecEqnmecktIaIUoQILkVFbM5ZbBktGRFmVVWC8osZXSIrna-r7pWG-_W2n-rVjs1GU3VVovxOBRMfpDIXu7YjW_fexs6tXbBxKC6sW0fFAUpBQEawWIHbiMGb6s_ZwJqW7Raqd-i1bZoBbmKcjy82H_Qwei68roxLvxfC8k5l5L-AM3-fsY</recordid><startdate>20070101</startdate><enddate>20070101</enddate><creator>DESCHAUX-BEAUME, F</creator><creator>FRETY, N</creator><creator>CUTARD, T</creator><creator>COLIN, C</creator><general>Elsevier Science</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-9712-9016</orcidid><orcidid>https://orcid.org/0000-0003-1363-9957</orcidid></search><sort><creationdate>20070101</creationdate><title>Oxidation modelling of a Si3N4-TiN ceramic : Microstructure and kinetic laws</title><author>DESCHAUX-BEAUME, F ; FRETY, N ; CUTARD, T ; COLIN, C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-b6219cde508958775465f742731dec88d08097e8f5e4350b53d56d2fea835e353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Building materials. 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For temperatures < 1000 C, only the TiN phase was oxidised. The oxidation process was then controlled by oxygen diffusion through TiO2, described by a parabolic oxidation kinetic law. The process was more complex > 1000 C, because of the simultaneous oxidation of both Si3N4 and TiN phases. Three oxidation modes, controlled by distinct diffusion mechanisms, took place successively. In the first step, Si3N4 and TiN phases were independently oxidised, respectively into SiO2 and TiO2 phases. Si3N4 oxidation was controlled by oxygen diffusion through SiO2, while TiN oxidation was controlled by titanium diffusion through TiO2. In the second step, the TiN oxidation was controlled by oxygen diffusion through TiO2 and through SiO2 formed by Si3N4 oxidation. In the third step, oxidation of the TiN and Si3N4 phases was controlled by oxygen diffusion through the silica layer. 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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Building materials. Ceramics. Glasses Ceramic industries Cermets, ceramic and refractory composites Chemical industry and chemicals Condensed Matter Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials Science Other materials Physics Specific materials Structural ceramics Technical ceramics |
| title | Oxidation modelling of a Si3N4-TiN ceramic : Microstructure and kinetic laws |
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