Phase formation in molybdenum disilicide powders during in-flight induction plasma treatment
In-flight modification of MoSi2 powders has been carried out by using an Ar–H2 induction plasma. Reactor pressure, powder feed rate, and plate power level were taken as the experimental parameters to alter the thermal history of the injected powder particles. Metastable hexagonal structure of β–MoSi...
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Veröffentlicht in: | Journal of Materials Research 1997-05, Vol.12 (5), p.1315-1326 |
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creator | Fan, Xiaobao Ishigaki, Takamasa Sato, Yoichiro |
description | In-flight modification of MoSi2 powders has been carried out by using an Ar–H2 induction plasma. Reactor pressure, powder feed rate, and plate power level were taken as the experimental parameters to alter the thermal history of the injected powder particles. Metastable hexagonal structure of β–MoSi2 is the major phase observed in the Ar–H2 induction plasma-treated molybdenum disilicide powders, while the stable phase of tetragonal structure of α–MoSi2 usually retains no less than 30 wt. %. Depending on the experimental condition and the deviation from stoichiometry in raw materials, low silicides, Mo5Si3 and Mo3Si, and free Si were observed, |
doi_str_mv | 10.1557/JMR.1997.0180 |
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Reactor pressure, powder feed rate, and plate power level were taken as the experimental parameters to alter the thermal history of the injected powder particles. Metastable hexagonal structure of β–MoSi2 is the major phase observed in the Ar–H2 induction plasma-treated molybdenum disilicide powders, while the stable phase of tetragonal structure of α–MoSi2 usually retains no less than 30 wt. %. Depending on the experimental condition and the deviation from stoichiometry in raw materials, low silicides, Mo5Si3 and Mo3Si, and free Si were observed,</description><identifier>ISSN: 0884-2914</identifier><identifier>EISSN: 2044-5326</identifier><identifier>DOI: 10.1557/JMR.1997.0180</identifier><language>eng</language><publisher>New York, USA: Cambridge University Press</publisher><subject>CERAMICS ; CORROSION RESISTANCE ; CRYSTAL-PHASE TRANSFORMATIONS ; INTERMETALLIC COMPOUNDS ; MATERIALS SCIENCE ; MOLYBDENUM SILICIDES ; PLASMA ; POWDERS ; SYNTHESIS</subject><ispartof>Journal of Materials Research, 1997-05, Vol.12 (5), p.1315-1326</ispartof><rights>Copyright © Materials Research Society 1997</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-e529b9b2bbea56233e60676dac849ea1f0425f47c40298c193e0723ce0b141e73</citedby><cites>FETCH-LOGICAL-c467t-e529b9b2bbea56233e60676dac849ea1f0425f47c40298c193e0723ce0b141e73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,885,27923,27924</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/508969$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Fan, Xiaobao</creatorcontrib><creatorcontrib>Ishigaki, Takamasa</creatorcontrib><creatorcontrib>Sato, Yoichiro</creatorcontrib><title>Phase formation in molybdenum disilicide powders during in-flight induction plasma treatment</title><title>Journal of Materials Research</title><addtitle>J. Mater. Res</addtitle><description>In-flight modification of MoSi2 powders has been carried out by using an Ar–H2 induction plasma. Reactor pressure, powder feed rate, and plate power level were taken as the experimental parameters to alter the thermal history of the injected powder particles. Metastable hexagonal structure of β–MoSi2 is the major phase observed in the Ar–H2 induction plasma-treated molybdenum disilicide powders, while the stable phase of tetragonal structure of α–MoSi2 usually retains no less than 30 wt. %. Depending on the experimental condition and the deviation from stoichiometry in raw materials, low silicides, Mo5Si3 and Mo3Si, and free Si were observed,</description><subject>CERAMICS</subject><subject>CORROSION RESISTANCE</subject><subject>CRYSTAL-PHASE TRANSFORMATIONS</subject><subject>INTERMETALLIC COMPOUNDS</subject><subject>MATERIALS SCIENCE</subject><subject>MOLYBDENUM SILICIDES</subject><subject>PLASMA</subject><subject>POWDERS</subject><subject>SYNTHESIS</subject><issn>0884-2914</issn><issn>2044-5326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqN0U1P3DAQBmCrAqkL9Nh7euGWxXb8ER8LggUEglZtD1Uly3Emu4bEXmxHLf-ebBfBCYnTzOGZGWlehD4TPCecy6PL6-9zopScY1LjD2hGMWMlr6jYQTNc16ykirCPaC-lO4wJx5LN0J_blUlQdCEOJrvgC-eLIfSPTQt-HIrWJdc761oo1uFvCzEV7RidX06u7Hq3XOWpa0f7f3bdmzSYIkcweQCfD9BuZ_oEn57rPvp5dvrj5Ly8ullcnHy9Ki0TMpfAqWpUQ5sGDBe0qkBgIUVrbM0UGNJhRnnHpGWYqtoSVQGWtLKAG8IIyGoffdnuDSk7nazLYFc2eA82a45rJdRkDrdmHcPDCCnrwSULfW88hDFpKqlklL0PEsb4BMsttDGkFKHT6-gGEx81wXoTiJ4C0ZtA9CaQV-9Shn8v2MR7LWQluRaLb5rT8-oX_n2syeSPnveboYmuXYK-C2P00yffuPAEKI-cWQ</recordid><startdate>19970501</startdate><enddate>19970501</enddate><creator>Fan, Xiaobao</creator><creator>Ishigaki, Takamasa</creator><creator>Sato, Yoichiro</creator><general>Cambridge University Press</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>8BQ</scope><scope>JG9</scope><scope>OTOTI</scope></search><sort><creationdate>19970501</creationdate><title>Phase formation in molybdenum disilicide powders during in-flight induction plasma treatment</title><author>Fan, Xiaobao ; Ishigaki, Takamasa ; Sato, Yoichiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-e529b9b2bbea56233e60676dac849ea1f0425f47c40298c193e0723ce0b141e73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>CERAMICS</topic><topic>CORROSION RESISTANCE</topic><topic>CRYSTAL-PHASE TRANSFORMATIONS</topic><topic>INTERMETALLIC COMPOUNDS</topic><topic>MATERIALS SCIENCE</topic><topic>MOLYBDENUM SILICIDES</topic><topic>PLASMA</topic><topic>POWDERS</topic><topic>SYNTHESIS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fan, Xiaobao</creatorcontrib><creatorcontrib>Ishigaki, Takamasa</creatorcontrib><creatorcontrib>Sato, Yoichiro</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>METADEX</collection><collection>Materials Research Database</collection><collection>OSTI.GOV</collection><jtitle>Journal of Materials Research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fan, Xiaobao</au><au>Ishigaki, Takamasa</au><au>Sato, Yoichiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phase formation in molybdenum disilicide powders during in-flight induction plasma treatment</atitle><jtitle>Journal of Materials Research</jtitle><addtitle>J. Mater. Res</addtitle><date>1997-05-01</date><risdate>1997</risdate><volume>12</volume><issue>5</issue><spage>1315</spage><epage>1326</epage><pages>1315-1326</pages><issn>0884-2914</issn><eissn>2044-5326</eissn><abstract>In-flight modification of MoSi2 powders has been carried out by using an Ar–H2 induction plasma. Reactor pressure, powder feed rate, and plate power level were taken as the experimental parameters to alter the thermal history of the injected powder particles. Metastable hexagonal structure of β–MoSi2 is the major phase observed in the Ar–H2 induction plasma-treated molybdenum disilicide powders, while the stable phase of tetragonal structure of α–MoSi2 usually retains no less than 30 wt. %. Depending on the experimental condition and the deviation from stoichiometry in raw materials, low silicides, Mo5Si3 and Mo3Si, and free Si were observed,</abstract><cop>New York, USA</cop><pub>Cambridge University Press</pub><doi>10.1557/JMR.1997.0180</doi><tpages>12</tpages></addata></record> |
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subjects | CERAMICS CORROSION RESISTANCE CRYSTAL-PHASE TRANSFORMATIONS INTERMETALLIC COMPOUNDS MATERIALS SCIENCE MOLYBDENUM SILICIDES PLASMA POWDERS SYNTHESIS |
title | Phase formation in molybdenum disilicide powders during in-flight induction plasma treatment |
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