Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering
β‐Sialon(z = 2, Si4Al2O2N6)/ZrN composite powders have been synthesized from coal ash, zircon, and active carbon at 1550°C for 6 hours, and β‐Sialon(z = 2)/ZrN/ZrON‐based composite ceramics (SZZCCS) have been prepared from as‐synthesized β‐Sialon/ZrN composite powders via pressureless sintering proc...
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| Veröffentlicht in: | International journal of applied ceramic technology 2020-01, Vol.17 (1), p.175-183 |
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| creator | Ma, Beiyue Gao, Zhi Su, Chang Ren, Xinming Li, Guangqiang Zhu, Qiang |
| description | β‐Sialon(z = 2, Si4Al2O2N6)/ZrN composite powders have been synthesized from coal ash, zircon, and active carbon at 1550°C for 6 hours, and β‐Sialon(z = 2)/ZrN/ZrON‐based composite ceramics (SZZCCS) have been prepared from as‐synthesized β‐Sialon/ZrN composite powders via pressureless sintering process. The effects of sintering temperatures (1450, 1500, 1550°C) on the phase compositions, microstructures, linear shrinkage ratio, bulk density, and oxidation characteristics of the SZZCCS were investigated in detail, and the oxidation process was also analyzed. It was found that the dense SZZCCS could be prepared at 1550°C for 1 hour, and they mainly consisted of β‐Sialon(z = 2), ZrN, and ZrON. The ZrN and ZrON particles were uniformly distributed on the β‐Sialon matrix. The sintering properties of the SZZCCS were greatly improved with increasing the sintering temperature. The SZZCCS sintered at 1550°C for 1 hour possessed excellent oxidation resistance at 900°C for 6 hours due to their dense microstructures. |
| doi_str_mv | 10.1111/ijac.13361 |
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The effects of sintering temperatures (1450, 1500, 1550°C) on the phase compositions, microstructures, linear shrinkage ratio, bulk density, and oxidation characteristics of the SZZCCS were investigated in detail, and the oxidation process was also analyzed. It was found that the dense SZZCCS could be prepared at 1550°C for 1 hour, and they mainly consisted of β‐Sialon(z = 2), ZrN, and ZrON. The ZrN and ZrON particles were uniformly distributed on the β‐Sialon matrix. The sintering properties of the SZZCCS were greatly improved with increasing the sintering temperature. The SZZCCS sintered at 1550°C for 1 hour possessed excellent oxidation resistance at 900°C for 6 hours due to their dense microstructures.</description><identifier>ISSN: 1546-542X</identifier><identifier>EISSN: 1744-7402</identifier><identifier>DOI: 10.1111/ijac.13361</identifier><language>eng</language><publisher>Malden: Wiley Subscription Services, Inc</publisher><subject>Activated carbon ; Bulk density ; Ceramics ; Fly ash ; Loose powder sintering ; Oxidation ; Oxidation resistance ; Pressureless sintering ; Shrinkage ; Sialon ; Sintering ; Sintering aids ; Sintering properties ; Synthesis ; Zircon ; Zirconium nitrides ; ZrN ; ZrON</subject><ispartof>International journal of applied ceramic technology, 2020-01, Vol.17 (1), p.175-183</ispartof><rights>2019 The American Ceramic Society</rights><rights>Copyright © 2020 American Ceramic Society</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3371-b1a8c15e92928a1bfedc0a7b3dce6a72bdb3c57bcd4d525d8ff20144f6f441913</citedby><cites>FETCH-LOGICAL-c3371-b1a8c15e92928a1bfedc0a7b3dce6a72bdb3c57bcd4d525d8ff20144f6f441913</cites><orcidid>0000-0002-4682-1539</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fijac.13361$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fijac.13361$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids></links><search><creatorcontrib>Ma, Beiyue</creatorcontrib><creatorcontrib>Gao, Zhi</creatorcontrib><creatorcontrib>Su, Chang</creatorcontrib><creatorcontrib>Ren, Xinming</creatorcontrib><creatorcontrib>Li, Guangqiang</creatorcontrib><creatorcontrib>Zhu, Qiang</creatorcontrib><title>Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering</title><title>International journal of applied ceramic technology</title><description>β‐Sialon(z = 2, Si4Al2O2N6)/ZrN composite powders have been synthesized from coal ash, zircon, and active carbon at 1550°C for 6 hours, and β‐Sialon(z = 2)/ZrN/ZrON‐based composite ceramics (SZZCCS) have been prepared from as‐synthesized β‐Sialon/ZrN composite powders via pressureless sintering process. The effects of sintering temperatures (1450, 1500, 1550°C) on the phase compositions, microstructures, linear shrinkage ratio, bulk density, and oxidation characteristics of the SZZCCS were investigated in detail, and the oxidation process was also analyzed. It was found that the dense SZZCCS could be prepared at 1550°C for 1 hour, and they mainly consisted of β‐Sialon(z = 2), ZrN, and ZrON. The ZrN and ZrON particles were uniformly distributed on the β‐Sialon matrix. The sintering properties of the SZZCCS were greatly improved with increasing the sintering temperature. The SZZCCS sintered at 1550°C for 1 hour possessed excellent oxidation resistance at 900°C for 6 hours due to their dense microstructures.</description><subject>Activated carbon</subject><subject>Bulk density</subject><subject>Ceramics</subject><subject>Fly ash</subject><subject>Loose powder sintering</subject><subject>Oxidation</subject><subject>Oxidation resistance</subject><subject>Pressureless sintering</subject><subject>Shrinkage</subject><subject>Sialon</subject><subject>Sintering</subject><subject>Sintering aids</subject><subject>Sintering properties</subject><subject>Synthesis</subject><subject>Zircon</subject><subject>Zirconium nitrides</subject><subject>ZrN</subject><subject>ZrON</subject><issn>1546-542X</issn><issn>1744-7402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKAzEUhoMoWKsbnyDgTph2cplLl6V4qZQWvIC4CZlcbMp0osmMpTs37n0WH8SH8EnMOII7A-Ec8n_nP-QH4BjFAxTO0Ky4GCBCUrQDeiijNMpojHdDn9A0Sii-3wcH3q_imNBA9cDbtRJbUZrqEVoNheUl5H4JtXXwyVnZiNrYqpWkqryCnx9fr-83hpe2Gj64ebiLeXgpuFcSCuX42ggPN6Ze2qaG3lS1cq03N9LDF8ODqfK-caoM5U8_BHual14d_dY-uDs_u51cRrPFxXQynkWCkAxFBeK5QIka4RHOOSq0kiLmWUGkUCnPcCELIpKsEJLKBCcy1xrHiFKdakrRCJE-OOl8w9-eG-VrtrKNq8JKhgnOaZ7QhAbqtKOEs947pdmTM2vutgzFrI2ZtTGzn5gDjDp4Y0q1_Ydk06vxpJv5BjgnhRo</recordid><startdate>202001</startdate><enddate>202001</enddate><creator>Ma, Beiyue</creator><creator>Gao, Zhi</creator><creator>Su, Chang</creator><creator>Ren, Xinming</creator><creator>Li, Guangqiang</creator><creator>Zhu, Qiang</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-4682-1539</orcidid></search><sort><creationdate>202001</creationdate><title>Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering</title><author>Ma, Beiyue ; Gao, Zhi ; Su, Chang ; Ren, Xinming ; Li, Guangqiang ; Zhu, Qiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3371-b1a8c15e92928a1bfedc0a7b3dce6a72bdb3c57bcd4d525d8ff20144f6f441913</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activated carbon</topic><topic>Bulk density</topic><topic>Ceramics</topic><topic>Fly ash</topic><topic>Loose powder sintering</topic><topic>Oxidation</topic><topic>Oxidation resistance</topic><topic>Pressureless sintering</topic><topic>Shrinkage</topic><topic>Sialon</topic><topic>Sintering</topic><topic>Sintering aids</topic><topic>Sintering properties</topic><topic>Synthesis</topic><topic>Zircon</topic><topic>Zirconium nitrides</topic><topic>ZrN</topic><topic>ZrON</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Beiyue</creatorcontrib><creatorcontrib>Gao, Zhi</creatorcontrib><creatorcontrib>Su, Chang</creatorcontrib><creatorcontrib>Ren, Xinming</creatorcontrib><creatorcontrib>Li, Guangqiang</creatorcontrib><creatorcontrib>Zhu, Qiang</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>International journal of applied ceramic technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Beiyue</au><au>Gao, Zhi</au><au>Su, Chang</au><au>Ren, Xinming</au><au>Li, Guangqiang</au><au>Zhu, Qiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering</atitle><jtitle>International journal of applied ceramic technology</jtitle><date>2020-01</date><risdate>2020</risdate><volume>17</volume><issue>1</issue><spage>175</spage><epage>183</epage><pages>175-183</pages><issn>1546-542X</issn><eissn>1744-7402</eissn><abstract>β‐Sialon(z = 2, Si4Al2O2N6)/ZrN composite powders have been synthesized from coal ash, zircon, and active carbon at 1550°C for 6 hours, and β‐Sialon(z = 2)/ZrN/ZrON‐based composite ceramics (SZZCCS) have been prepared from as‐synthesized β‐Sialon/ZrN composite powders via pressureless sintering process. The effects of sintering temperatures (1450, 1500, 1550°C) on the phase compositions, microstructures, linear shrinkage ratio, bulk density, and oxidation characteristics of the SZZCCS were investigated in detail, and the oxidation process was also analyzed. It was found that the dense SZZCCS could be prepared at 1550°C for 1 hour, and they mainly consisted of β‐Sialon(z = 2), ZrN, and ZrON. The ZrN and ZrON particles were uniformly distributed on the β‐Sialon matrix. The sintering properties of the SZZCCS were greatly improved with increasing the sintering temperature. The SZZCCS sintered at 1550°C for 1 hour possessed excellent oxidation resistance at 900°C for 6 hours due to their dense microstructures.</abstract><cop>Malden</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/ijac.13361</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-4682-1539</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Activated carbon Bulk density Ceramics Fly ash Loose powder sintering Oxidation Oxidation resistance Pressureless sintering Shrinkage Sialon Sintering Sintering aids Sintering properties Synthesis Zircon Zirconium nitrides ZrN ZrON |
| title | Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering |
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