Oxidation behavior of Mo≤5Si3C≤1 and its composites
The oxidation behavior of Mo≤5Si3C≤1 and its composites was studied in air over the temperature range of 500°C–1600°C. Experiments revealed poor oxidation resistance of monolithic Mo≤5Si3C≤1 at high temperature. The oxidation was quite rapid at 1200°C and above, resulting in complete oxidation of sp...
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| Veröffentlicht in: | Journal of materials science 2000-02, Vol.35 (4), p.863-872 |
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| creator | ZHU, Q SHOBU, K TANI, E KISHI, K UMEBAYASHI, S |
| description | The oxidation behavior of Mo≤5Si3C≤1 and its composites was studied in air over the temperature range of 500°C–1600°C. Experiments revealed poor oxidation resistance of monolithic Mo≤5Si3C≤1 at high temperature. The oxidation was quite rapid at 1200°C and above, resulting in complete oxidation of specimens in a short time. The addition of 2.0 wt% boron was found to produce a Mo≤5Si3C≤1 composite with three other phases of MoB, MoSi2, and SiC, and showed remarkable improvement in oxidation resistance. The mechanism for the improvement was attributed to the viscous sintering of the scale to close the pores formed during the initial oxidation period. Oxidation tests were also conducted on SiC-Mo≤5Si3C≤1 composite at 800°C, 1300°C and 1600°C for more than 100 hours. The oxidation resistance of the composite was found to be very good. The results demonstrate that, though oxidation resistance of monolithic Mo≤5Si3C≤1 is far insufficient for high-temperature applications, boron-modification and/or composites with SiC are viable methods to improve oxidation resistance to a practically acceptable level. |
| doi_str_mv | 10.1023/A:1004786005333 |
| format | Article |
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Experiments revealed poor oxidation resistance of monolithic Mo≤5Si3C≤1 at high temperature. The oxidation was quite rapid at 1200°C and above, resulting in complete oxidation of specimens in a short time. The addition of 2.0 wt% boron was found to produce a Mo≤5Si3C≤1 composite with three other phases of MoB, MoSi2, and SiC, and showed remarkable improvement in oxidation resistance. The mechanism for the improvement was attributed to the viscous sintering of the scale to close the pores formed during the initial oxidation period. Oxidation tests were also conducted on SiC-Mo≤5Si3C≤1 composite at 800°C, 1300°C and 1600°C for more than 100 hours. The oxidation resistance of the composite was found to be very good. The results demonstrate that, though oxidation resistance of monolithic Mo≤5Si3C≤1 is far insufficient for high-temperature applications, boron-modification and/or composites with SiC are viable methods to improve oxidation resistance to a practically acceptable level.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1023/A:1004786005333</identifier><identifier>CODEN: JMTSAS</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Applied sciences ; Boron ; Building materials. Ceramics. Glasses ; Ceramic industries ; Chemical industry and chemicals ; Composite materials ; Exact sciences and technology ; High temperature ; Materials science ; Molybdenum disilicides ; Oxidation ; Oxidation resistance ; Oxidation tests ; Sintering (powder metallurgy) ; Structural ceramics ; Technical ceramics</subject><ispartof>Journal of materials science, 2000-02, Vol.35 (4), p.863-872</ispartof><rights>2000 INIST-CNRS</rights><rights>Journal of Materials Science is a copyright of Springer, (2000). 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Experiments revealed poor oxidation resistance of monolithic Mo≤5Si3C≤1 at high temperature. The oxidation was quite rapid at 1200°C and above, resulting in complete oxidation of specimens in a short time. The addition of 2.0 wt% boron was found to produce a Mo≤5Si3C≤1 composite with three other phases of MoB, MoSi2, and SiC, and showed remarkable improvement in oxidation resistance. The mechanism for the improvement was attributed to the viscous sintering of the scale to close the pores formed during the initial oxidation period. Oxidation tests were also conducted on SiC-Mo≤5Si3C≤1 composite at 800°C, 1300°C and 1600°C for more than 100 hours. The oxidation resistance of the composite was found to be very good. The results demonstrate that, though oxidation resistance of monolithic Mo≤5Si3C≤1 is far insufficient for high-temperature applications, boron-modification and/or composites with SiC are viable methods to improve oxidation resistance to a practically acceptable level.</description><subject>Applied sciences</subject><subject>Boron</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>Composite materials</subject><subject>Exact sciences and technology</subject><subject>High temperature</subject><subject>Materials science</subject><subject>Molybdenum disilicides</subject><subject>Oxidation</subject><subject>Oxidation resistance</subject><subject>Oxidation tests</subject><subject>Sintering (powder metallurgy)</subject><subject>Structural ceramics</subject><subject>Technical ceramics</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNotjk1OwzAQRi0EEqWwZhsJtoHxTJxx2FURf1JRF8A6chJbuGrjEKcIjsA9OBknIRJdvc3T9z4hziVcSUC6XtxIgIx1DqCI6EDMpGJKMw10KGYAiClmuTwWJzGuYZIY5Uzw6tO3ZvShS2r7Zj58GJLgkqfw-_2jnj2VE2ViujbxY0yasO1D9KONp-LImU20Z3vOxevd7Uv5kC5X94_lYpk2qPIxtYVTNWowrAstGyyoJqm5zY1FZm3d9NEh5zm4ViOwKgxpbAkUUAsuo7m4-N_th_C-s3Gs1mE3dFOyQlQFS5VJnqzLvWViYzZuMF3jY9UPfmuGr0oiA4KmP8-PU_Q</recordid><startdate>20000201</startdate><enddate>20000201</enddate><creator>ZHU, Q</creator><creator>SHOBU, K</creator><creator>TANI, E</creator><creator>KISHI, K</creator><creator>UMEBAYASHI, S</creator><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20000201</creationdate><title>Oxidation behavior of Mo≤5Si3C≤1 and its composites</title><author>ZHU, Q ; SHOBU, K ; TANI, E ; KISHI, K ; UMEBAYASHI, S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c256t-e9f5b280a78981c293b3187d6ae2778ef157f27660fd820759a382d30503d0f43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Applied sciences</topic><topic>Boron</topic><topic>Building materials. Ceramics. Glasses</topic><topic>Ceramic industries</topic><topic>Chemical industry and chemicals</topic><topic>Composite materials</topic><topic>Exact sciences and technology</topic><topic>High temperature</topic><topic>Materials science</topic><topic>Molybdenum disilicides</topic><topic>Oxidation</topic><topic>Oxidation resistance</topic><topic>Oxidation tests</topic><topic>Sintering (powder metallurgy)</topic><topic>Structural ceramics</topic><topic>Technical ceramics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ZHU, Q</creatorcontrib><creatorcontrib>SHOBU, K</creatorcontrib><creatorcontrib>TANI, E</creatorcontrib><creatorcontrib>KISHI, K</creatorcontrib><creatorcontrib>UMEBAYASHI, S</creatorcontrib><collection>Pascal-Francis</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Journal of materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ZHU, Q</au><au>SHOBU, K</au><au>TANI, E</au><au>KISHI, K</au><au>UMEBAYASHI, S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Oxidation behavior of Mo≤5Si3C≤1 and its composites</atitle><jtitle>Journal of materials science</jtitle><date>2000-02-01</date><risdate>2000</risdate><volume>35</volume><issue>4</issue><spage>863</spage><epage>872</epage><pages>863-872</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><coden>JMTSAS</coden><abstract>The oxidation behavior of Mo≤5Si3C≤1 and its composites was studied in air over the temperature range of 500°C–1600°C. Experiments revealed poor oxidation resistance of monolithic Mo≤5Si3C≤1 at high temperature. The oxidation was quite rapid at 1200°C and above, resulting in complete oxidation of specimens in a short time. The addition of 2.0 wt% boron was found to produce a Mo≤5Si3C≤1 composite with three other phases of MoB, MoSi2, and SiC, and showed remarkable improvement in oxidation resistance. The mechanism for the improvement was attributed to the viscous sintering of the scale to close the pores formed during the initial oxidation period. Oxidation tests were also conducted on SiC-Mo≤5Si3C≤1 composite at 800°C, 1300°C and 1600°C for more than 100 hours. The oxidation resistance of the composite was found to be very good. The results demonstrate that, though oxidation resistance of monolithic Mo≤5Si3C≤1 is far insufficient for high-temperature applications, boron-modification and/or composites with SiC are viable methods to improve oxidation resistance to a practically acceptable level.</abstract><cop>Heidelberg</cop><pub>Springer</pub><doi>10.1023/A:1004786005333</doi><tpages>10</tpages></addata></record> |
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| subjects | Applied sciences Boron Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Composite materials Exact sciences and technology High temperature Materials science Molybdenum disilicides Oxidation Oxidation resistance Oxidation tests Sintering (powder metallurgy) Structural ceramics Technical ceramics |
| title | Oxidation behavior of Mo≤5Si3C≤1 and its composites |
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