EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES
By means of transient plastic phase process, the SiC silicon carbide kiln furniture materials were produced through adding Si powder to SiC materials. At the condition of the same additions of SiO2 powder, the effect of the Si powder additions on properties of silicon carbide materials after sintere...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2012-09-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: | http://www.ceramics-silikaty.cz/2012/pdf/2012_03_191.pdf |
| _version_ | 1818268417638006784 |
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| author | GUOGANG XU ZHIHUI ZHANG MINGQIANG YIN GUOZHI RUAN |
| author_facet | GUOGANG XU ZHIHUI ZHANG MINGQIANG YIN GUOZHI RUAN |
| author_sort | GUOGANG XU |
| collection | DOAJ |
| description | By means of transient plastic phase process, the SiC silicon carbide kiln furniture materials were produced through adding Si powder to SiC materials. At the condition of the same additions of SiO2 powder, the effect of the Si powder additions on properties of silicon carbide materials after sintered at 1450°C for 3 h in air atmosphere was studied by means of SEM and other analysis methods. The results showed that silicon powder contributes to both sintering by liquid state and plastic phase combination to improve the strength of samples. When the Si powder additions is lower than 3.5 %, the density and strength of samples increase and porosity decrease with increasing Si powder additions. However when the Si powder additions is higher than 3.5 %, the density and strength of samples decrease and porosity increase with increasing Si powder additions. With increasing of Si additions, the residual strength of sample after thermal shocked increased and linear change rate decreased, and get to boundary value when Si additions is 4.5 %. The results also indicated that at the same sintering temperature, the sample with 3.5 % silicon powder has maximum strength. |
| first_indexed | 2024-12-12T20:38:10Z |
| format | Article |
| id | doaj.art-583badd6aacf4494b62fd76918229dfe |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-12-12T20:38:10Z |
| publishDate | 2012-09-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-583badd6aacf4494b62fd76918229dfe2022-12-22T00:12:50ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472012-09-01563191197EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITESGUOGANG XUZHIHUI ZHANGMINGQIANG YINGUOZHI RUANBy means of transient plastic phase process, the SiC silicon carbide kiln furniture materials were produced through adding Si powder to SiC materials. At the condition of the same additions of SiO2 powder, the effect of the Si powder additions on properties of silicon carbide materials after sintered at 1450°C for 3 h in air atmosphere was studied by means of SEM and other analysis methods. The results showed that silicon powder contributes to both sintering by liquid state and plastic phase combination to improve the strength of samples. When the Si powder additions is lower than 3.5 %, the density and strength of samples increase and porosity decrease with increasing Si powder additions. However when the Si powder additions is higher than 3.5 %, the density and strength of samples decrease and porosity increase with increasing Si powder additions. With increasing of Si additions, the residual strength of sample after thermal shocked increased and linear change rate decreased, and get to boundary value when Si additions is 4.5 %. The results also indicated that at the same sintering temperature, the sample with 3.5 % silicon powder has maximum strength.http://www.ceramics-silikaty.cz/2012/pdf/2012_03_191.pdfSilicon carbide compositeKiln furniture materialsSi powde |
| spellingShingle | GUOGANG XU ZHIHUI ZHANG MINGQIANG YIN GUOZHI RUAN EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES Ceramics-Silikáty Silicon carbide composite Kiln furniture materials Si powde |
| title | EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES |
| title_full | EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES |
| title_fullStr | EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES |
| title_full_unstemmed | EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES |
| title_short | EFFECT OF THE Si POWDER ADDITIONS ON THE PROPERTIES OF SiC COMPOSITES |
| title_sort | effect of the si powder additions on the properties of sic composites |
| topic | Silicon carbide composite Kiln furniture materials Si powde |
| url | http://www.ceramics-silikaty.cz/2012/pdf/2012_03_191.pdf |
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