Article(id=1319987028855468570, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210614, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1627401600000, receivedDateStr=2021-07-28, revisedDate=1629388800000, revisedDateStr=2021-08-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1792639031851, onlineDateStr=2026-10-22, pubDate=1647705600000, pubDateStr=2022-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792639031851, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792639031851, creator=13701087609, updateTime=1792639031851, updator=13701087609, issue=Issue{id=1319986978137944236, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='3', pageStart='555', pageEnd='876', issueExtLink='null', onlineDate='null', pubDate='1647705600000', pubDateStr='2022-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792639019760, creator='13701087609', updateTime=1792639223744, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319987833767575858, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319987833767575859, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=828, endPage=838, ext={EN=ArticleExt(id=1319987029505585691, articleId=1319987028855468570, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Effect of Silica Sol Impregnated Recycled Aggregates of Spent Mullite-SiC Bricks on Performance of Al2O3-SiC-C Castables, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

For the improvement of the fluidity of castables with recycled aggregates of mullite-SiC bricks due to their high porosity, high water absorption and massive cracks, silica sol was used to impregnate mullite-SiC brick aggregates. The effect of silica sol concentration on the aggregate properties of mullite-SiC bricks was investigated. The microstructures and the element distributions of modified mullite-SiC bricks aggregate were analyzed by scanning electron microscopy coupled with energy dispersive spectroscopy. The water wettability of mullite-SiC brick aggregates was characterized via water contact angle measurement. The results show that after the impregnation of mullite-SiC brick aggregates, the water absorption of mullite-SiC brick aggregate reduces from 6.9% to 2.6%, and the water contact angle decreases from 55° to 7°, thus improving the water wettability of the aggregate. The impregnated mullite-SiC bricks were used as recycled aggregates instead of brown corundum in Al2O3-SiC-C castables. In addition, the effect of aggregates on the properties of castables was also investigated. The results indicate that Al2O3-SiC-C refractory castables with silica sol concentration of 15% modified mullite-SiC bricks aggregates after heat-treated at 1 450 ℃ have the minimum apparent porosity of 17.1% and the maximum cold compressive strength of 73.7 MPa, which is 45.7% greater than the strength of castables with brown corundum as aggregates. Meanwhile, the residual strength and the residual strength ratio of castables after thermal shock are increased by 69.4% and 24.1%, respectively.

, authors=Chao SANG, Guoqing XIAO, Donghai DING, Changkun LEI, Yunfei ZANG, Chao FENG, authorsList=Chao SANG, Guoqing XIAO, Donghai DING, Changkun LEI, Yunfei ZANG, Chao FENG, authorCompany=null, correspAuthors=Guoqing XIAO, authorNote=

SANG Chao (1996-), male, Master candidate. E-mail:

, correspAuthorsNote=
XIAO Guoqing (1967-), Male, Professor. E-mail:
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用硅溶胶对硅莫砖再生骨料进行浸渍处理,研究了硅溶胶含量(质量分数)对骨料性能的影响。用扫描电子显微镜和能谱仪对浸渍后硅莫砖骨料的显微结构进行表征。通过水润湿角测试判断硅莫砖骨料的水润湿性。结果表明:骨料经浸渍处理后,吸水率从6.9%降低到2.6%。骨料的水润湿性有了较大的改善,水润湿角从55°降低到7°。将浸渍后的硅莫砖替代棕刚玉,作为再生骨料应用于Al2O3-SiC-C浇注料中,当硅溶胶含量为15%浸渍的硅莫砖骨料替代棕刚玉时,1 450 ℃热处理后浇注料的显气孔率最低(17.1%),常温耐压强度最高(73.7 MPa),比以棕刚玉为骨料的浇注料的强度提高了45.7%,浇注料热震后残余抗折强度和残余抗折强度保持率分别提高了69.4%和24.1%,综合性能最佳。

, authors=桑超, 肖国庆, 丁冬海, 雷长坤, 臧云飞, 冯超, authorsList=桑超, 肖国庆, 丁冬海, 雷长坤, 臧云飞, 冯超, authorCompany=null, correspAuthors=肖国庆, authorNote=

桑超(1996—),男,硕士研究生。

, correspAuthorsNote=
肖国庆(1967—),男,教授。
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桑超(1996—),男,硕士研究生。

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硅溶胶浸渍硅莫砖再生骨料对Al2O3-SiC-C浇注料性能的影响
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桑超 , 肖国庆 , 丁冬海 , 雷长坤 , 臧云飞 , 冯超
硅酸盐学报 | 研究论文 2022,50(3): 828-838
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硅酸盐学报 |研究论文 2022 , 50 (3) : 828 -838
硅溶胶浸渍硅莫砖再生骨料对Al2O3-SiC-C浇注料性能的影响
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桑超 , 肖国庆 , 丁冬海, 雷长坤, 臧云飞, 冯超
作者信息
  • 西安建筑科技大学材料科学与工程学院,西安 710055
通讯作者:
肖国庆(1967—),男,教授。
作者简介:

桑超(1996—),男,硕士研究生。

Effect of Silica Sol Impregnated Recycled Aggregates of Spent Mullite-SiC Bricks on Performance of Al2O3-SiC-C Castables
Chao SANG , Guoqing XIAO , Donghai DING, Changkun LEI, Yunfei ZANG, Chao FENG
Affiliations
  • College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • Corresponding Author:
    XIAO Guoqing (1967-), Male, Professor. E-mail:

    SANG Chao (1996-), male, Master candidate. E-mail:

出版时间: 2022-03-20 doi: 10.14062/j.issn.0454-5648.20210614
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用硅溶胶对硅莫砖再生骨料进行浸渍处理,研究了硅溶胶含量(质量分数)对骨料性能的影响。用扫描电子显微镜和能谱仪对浸渍后硅莫砖骨料的显微结构进行表征。通过水润湿角测试判断硅莫砖骨料的水润湿性。结果表明:骨料经浸渍处理后,吸水率从6.9%降低到2.6%。骨料的水润湿性有了较大的改善,水润湿角从55°降低到7°。将浸渍后的硅莫砖替代棕刚玉,作为再生骨料应用于Al2O3-SiC-C浇注料中,当硅溶胶含量为15%浸渍的硅莫砖骨料替代棕刚玉时,1 450 ℃热处理后浇注料的显气孔率最低(17.1%),常温耐压强度最高(73.7 MPa),比以棕刚玉为骨料的浇注料的强度提高了45.7%,浇注料热震后残余抗折强度和残余抗折强度保持率分别提高了69.4%和24.1%,综合性能最佳。

硅莫砖  /  再生骨料  /  氧化铝-碳化硅-碳铁沟浇注料  /  硅溶胶  /  抗热震性

For the improvement of the fluidity of castables with recycled aggregates of mullite-SiC bricks due to their high porosity, high water absorption and massive cracks, silica sol was used to impregnate mullite-SiC brick aggregates. The effect of silica sol concentration on the aggregate properties of mullite-SiC bricks was investigated. The microstructures and the element distributions of modified mullite-SiC bricks aggregate were analyzed by scanning electron microscopy coupled with energy dispersive spectroscopy. The water wettability of mullite-SiC brick aggregates was characterized via water contact angle measurement. The results show that after the impregnation of mullite-SiC brick aggregates, the water absorption of mullite-SiC brick aggregate reduces from 6.9% to 2.6%, and the water contact angle decreases from 55° to 7°, thus improving the water wettability of the aggregate. The impregnated mullite-SiC bricks were used as recycled aggregates instead of brown corundum in Al2O3-SiC-C castables. In addition, the effect of aggregates on the properties of castables was also investigated. The results indicate that Al2O3-SiC-C refractory castables with silica sol concentration of 15% modified mullite-SiC bricks aggregates after heat-treated at 1 450 ℃ have the minimum apparent porosity of 17.1% and the maximum cold compressive strength of 73.7 MPa, which is 45.7% greater than the strength of castables with brown corundum as aggregates. Meanwhile, the residual strength and the residual strength ratio of castables after thermal shock are increased by 69.4% and 24.1%, respectively.

spent mullite-silicon carbide brick  /  recycled aggregates  /  alumica-silicon carbide-carbon iron trough castables  /  silica sol  /  thermal shock resistance
桑超, 肖国庆, 丁冬海, 雷长坤, 臧云飞, 冯超. 硅溶胶浸渍硅莫砖再生骨料对Al2O3-SiC-C浇注料性能的影响. 硅酸盐学报, 2022 , 50 (3) : 828 -838 . DOI: 10.14062/j.issn.0454-5648.20210614
Chao SANG, Guoqing XIAO, Donghai DING, Changkun LEI, Yunfei ZANG, Chao FENG. Effect of Silica Sol Impregnated Recycled Aggregates of Spent Mullite-SiC Bricks on Performance of Al2O3-SiC-C Castables[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (3) : 828 -838 . DOI: 10.14062/j.issn.0454-5648.20210614
  • 国家自然科学基金(51572212)
  • 陕西省教育厅重点科学研究计划协同创新中心项目(20JY039)
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doi: 10.14062/j.issn.0454-5648.20210614
  • 接收时间:2021-07-28
  • 首发时间:2026-10-22
  • 出版时间:2022-03-20
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  • 收稿日期:2021-07-28
  • 修回日期:2021-08-20
基金
国家自然科学基金(51572212)
陕西省教育厅重点科学研究计划协同创新中心项目(20JY039)
作者信息
    西安建筑科技大学材料科学与工程学院,西安 710055

通讯作者:

肖国庆(1967—),男,教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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