State of Small Amount of Elements in Silicon Nitride Fabricated by Post-Sintering Process Using Low-Grade Silicon Powder as Raw Materials
The state of small amount of elements containing impurity in silicon nitride produced by the post sintering method from low-grade silicon powder was investigated. Iron reacted with other components in the raw materials in the sintering process to form iron silicide particles which were subsequently...
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| Veröffentlicht in: | Journal of the Ceramic Society of Japan 2004, Vol.112(1312), pp.665-668 |
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| container_end_page | 668 |
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| container_issue | 1312 |
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| container_title | Journal of the Ceramic Society of Japan |
| container_volume | 112 |
| creator | KITA, Hideki OSUMI, Kazuo UENO, Syunkichi JAYASEELAN, D. Doni IIZUKA, Tateoki |
| description | The state of small amount of elements containing impurity in silicon nitride produced by the post sintering method from low-grade silicon powder was investigated. Iron reacted with other components in the raw materials in the sintering process to form iron silicide particles which were subsequently distributed. Most particles were as large as 2 μm in diameter. Linear voids that were considered to originate in the difference of thermal expansion coefficients were observed in their perimeter. Ta2O5 also reacted with other elements and it was observed in the form of tantalum silicide particles. The size was few hundreds nanometer. Calcium was detected from multigrain pockets. However, not a particular particle segregation could be observed. For this reason, it is presumed that Calcium was solved into the grain-boundary phase. |
| doi_str_mv | 10.2109/jcersj.112.665 |
| format | Article |
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Doni</creatorcontrib><creatorcontrib>IIZUKA, Tateoki</creatorcontrib><title>State of Small Amount of Elements in Silicon Nitride Fabricated by Post-Sintering Process Using Low-Grade Silicon Powder as Raw Materials</title><title>Journal of the Ceramic Society of Japan</title><addtitle>J. Ceram. Soc. Japan</addtitle><description>The state of small amount of elements containing impurity in silicon nitride produced by the post sintering method from low-grade silicon powder was investigated. Iron reacted with other components in the raw materials in the sintering process to form iron silicide particles which were subsequently distributed. Most particles were as large as 2 μm in diameter. Linear voids that were considered to originate in the difference of thermal expansion coefficients were observed in their perimeter. Ta2O5 also reacted with other elements and it was observed in the form of tantalum silicide particles. The size was few hundreds nanometer. Calcium was detected from multigrain pockets. However, not a particular particle segregation could be observed. For this reason, it is presumed that Calcium was solved into the grain-boundary phase.</description><subject>Calcium</subject><subject>Cost</subject><subject>Impurity</subject><subject>Iron</subject><subject>Post-sintering</subject><subject>Reaction-bonding</subject><subject>Silicon nitride</subject><issn>0914-5400</issn><issn>1882-0743</issn><issn>1882-1022</issn><issn>1348-6535</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkU2LFDEQhoMoOKx79RwQvPWY70mOy7IfyqiD455DOl2zZuhO1iTDsD_Bf22acRfxYg6pqvA8BeFF6C0lS0aJ-bD3kMt-SSlbKiVfoAXVmnWUMPYSLYihopOCkNfovJTQE8KEForwBfq1ra4CTju8ndw44ospHWKd56sRJoi14BDxNozBp4i_hJrDAPja9Tn4Jg64f8SbVGq3DbFCDvEeb3LyUAq-K_O0TsfuJrsmPS3ZpOMAGbuCv7kj_uxmzY3lDXq1awXO_9QzdHd99f3ytlt_vfl4ebHuvOCqdsOK8XZ6IwYl1YrDTjDBie-1N5Io0yvuhl4Bk8CUVpR78FIaStq741rzM_T-tPchp58HKNVOoXgYRxchHYplhhrOhfg_qAVZKSEb-O4fcJ8OObZPWCqE1IYwThq1PFE-p1Iy7OxDDpPLj5YSO2doTxnalqFtGTbh00nYl-ru4Rl3uQY_wt845fP11DT5GfI_XLYQ-W-yBqle</recordid><startdate>2004</startdate><enddate>2004</enddate><creator>KITA, Hideki</creator><creator>OSUMI, Kazuo</creator><creator>UENO, Syunkichi</creator><creator>JAYASEELAN, D. 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Japan</addtitle><date>2004</date><risdate>2004</risdate><volume>112</volume><issue>1312</issue><spage>665</spage><epage>668</epage><pages>665-668</pages><issn>0914-5400</issn><issn>1882-0743</issn><eissn>1882-1022</eissn><eissn>1348-6535</eissn><abstract>The state of small amount of elements containing impurity in silicon nitride produced by the post sintering method from low-grade silicon powder was investigated. Iron reacted with other components in the raw materials in the sintering process to form iron silicide particles which were subsequently distributed. Most particles were as large as 2 μm in diameter. Linear voids that were considered to originate in the difference of thermal expansion coefficients were observed in their perimeter. Ta2O5 also reacted with other elements and it was observed in the form of tantalum silicide particles. The size was few hundreds nanometer. Calcium was detected from multigrain pockets. However, not a particular particle segregation could be observed. For this reason, it is presumed that Calcium was solved into the grain-boundary phase.</abstract><cop>Tokyo</cop><pub>The Ceramic Society of Japan</pub><doi>10.2109/jcersj.112.665</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0914-5400 |
| ispartof | Journal of the Ceramic Society of Japan, 2004, Vol.112(1312), pp.665-668 |
| issn | 0914-5400 1882-0743 1882-1022 1348-6535 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_29193344 |
| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | Calcium Cost Impurity Iron Post-sintering Reaction-bonding Silicon nitride |
| title | State of Small Amount of Elements in Silicon Nitride Fabricated by Post-Sintering Process Using Low-Grade Silicon Powder as Raw Materials |
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