Article(id=1322612211386790387, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190343, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1558454400000, receivedDateStr=2019-05-22, revisedDate=1560268800000, revisedDateStr=2019-06-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264924140, onlineDateStr=2026-10-29, pubDate=1584633600000, pubDateStr=2020-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264924140, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264924140, creator=13701087609, updateTime=1793264924140, updator=13701087609, issue=Issue{id=1322612191723897081, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='3', pageStart='325', pageEnd='462', issueExtLink='null', onlineDate='null', pubDate='1584633600000', pubDateStr='2020-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264919452, creator='13701087609', updateTime=1793277037156, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322663017125368549, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322663017125368550, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=368, endPage=374, ext={EN=ArticleExt(id=1322612211567145460, articleId=1322612211386790387, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Fabrication of Al2O3 Porous Ceramic by Gel-foaming Method with Sodium Alginate, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Alumina (Al2O3) porous ceramics green bodies were prepared by a gel-foaming method with sodium alginate as a gelation reagent and sodium alcohol ether sulphate (AES) as a foaming agent, and Al2O3 porous ceramics were sintered by a pressure-less sintering technique. The relationship between the solid content/foaming agent content and the porosity/compressive strength of Al2O3 green bodies was investigated. The effect of sintering temperature on the microstructure and mechanical property of Al2O3 porous ceramics and the curing mechanism of sodium alginate were analyzed. The result show that alumina particles are solidified by a network formed due to the reaction between sodium alginate and free calcium ions. Al2O3 porous green body with a high porosity and a uniform aperture can be obtained under the optimum condition (i.e., solid content of 25% and foaming agent content of 3.0%). The porosity of Al2O3 porous ceramics decreases and the compressive strength increases with the increase of sintering additive content. Excessive sintering temperature leads to the abnormal growth of Al2O3 grain, thus reducing the compressive strength.

, authors=Xiulan HE, Cheng WU, Wenzheng ZHANG, Wei ZHENG, authorsList=Xiulan HE, Cheng WU, Wenzheng ZHANG, Wei ZHENG, authorCompany=null, correspAuthors=null, authorNote=

HE Xiulan (1973-), female, Ph.D., Associate Professor. E-mail:

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以海藻酸钠为凝胶体系、脂肪醇聚氧乙烯醚硫酸钠(AES)为发泡剂,采用凝胶注模与发泡法相结合的技术制备了Al2O3多孔陶瓷坯体,并利用无压烧结工艺进行材料的烧结。研究了固相含量及发泡剂含量与Al2O3多孔陶瓷坯体的气孔率与抗压强度之间的关系,探讨了烧结温度对Al2O3多孔陶瓷烧结体的显微结构及力学性能的影响规律,并研究了海藻酸钠体系的凝胶固化机制。结果表明,海藻酸钠与Ca2+反应形成网络结构,实现了Al2O3陶瓷粉体的固化成型。25%(体积分数)固相含量及3.0%(质量分数)发泡剂含量为最佳含量,有利于制备气孔率高、气孔孔径均匀的多孔陶瓷坯体。随着烧结温度升高,Al2O3多孔陶瓷烧结体气孔率下降,抗压强度上升,过高的烧结温度引起Al2O3晶粒异常长大,抗压强度降低。

, authors=何秀兰, 吴成, 张文正, 郑威, authorsList=何秀兰, 吴成, 张文正, 郑威, authorCompany=null, correspAuthors=null, authorNote=

何秀兰(1973—),女,博士,副教授。

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海藻酸钠凝胶-发泡法制备Al2O3多孔陶瓷
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何秀兰 , 吴成 , 张文正 , 郑威
硅酸盐学报 | 2020,48(3): 368-374
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海藻酸钠凝胶-发泡法制备Al2O3多孔陶瓷
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何秀兰 , 吴成, 张文正, 郑威
作者信息
  • 哈尔滨理工大学材料科学与工程学院,哈尔滨 150040
作者简介:

何秀兰(1973—),女,博士,副教授。

Fabrication of Al2O3 Porous Ceramic by Gel-foaming Method with Sodium Alginate
Xiulan HE , Cheng WU, Wenzheng ZHANG, Wei ZHENG
Affiliations
  • School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
  • HE Xiulan (1973-), female, Ph.D., Associate Professor. E-mail:

出版时间: 2020-03-20 doi: 10.14062/j.issn.0454-5648.20190343
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以海藻酸钠为凝胶体系、脂肪醇聚氧乙烯醚硫酸钠(AES)为发泡剂,采用凝胶注模与发泡法相结合的技术制备了Al2O3多孔陶瓷坯体,并利用无压烧结工艺进行材料的烧结。研究了固相含量及发泡剂含量与Al2O3多孔陶瓷坯体的气孔率与抗压强度之间的关系,探讨了烧结温度对Al2O3多孔陶瓷烧结体的显微结构及力学性能的影响规律,并研究了海藻酸钠体系的凝胶固化机制。结果表明,海藻酸钠与Ca2+反应形成网络结构,实现了Al2O3陶瓷粉体的固化成型。25%(体积分数)固相含量及3.0%(质量分数)发泡剂含量为最佳含量,有利于制备气孔率高、气孔孔径均匀的多孔陶瓷坯体。随着烧结温度升高,Al2O3多孔陶瓷烧结体气孔率下降,抗压强度上升,过高的烧结温度引起Al2O3晶粒异常长大,抗压强度降低。

氧化铝多孔陶瓷  /  凝胶-发泡法  /  海藻酸钠  /  显微结构

Alumina (Al2O3) porous ceramics green bodies were prepared by a gel-foaming method with sodium alginate as a gelation reagent and sodium alcohol ether sulphate (AES) as a foaming agent, and Al2O3 porous ceramics were sintered by a pressure-less sintering technique. The relationship between the solid content/foaming agent content and the porosity/compressive strength of Al2O3 green bodies was investigated. The effect of sintering temperature on the microstructure and mechanical property of Al2O3 porous ceramics and the curing mechanism of sodium alginate were analyzed. The result show that alumina particles are solidified by a network formed due to the reaction between sodium alginate and free calcium ions. Al2O3 porous green body with a high porosity and a uniform aperture can be obtained under the optimum condition (i.e., solid content of 25% and foaming agent content of 3.0%). The porosity of Al2O3 porous ceramics decreases and the compressive strength increases with the increase of sintering additive content. Excessive sintering temperature leads to the abnormal growth of Al2O3 grain, thus reducing the compressive strength.

alumina porous ceramics  /  gel-foaming method  /  sodium alginate  /  microstructure
何秀兰, 吴成, 张文正, 郑威. 海藻酸钠凝胶-发泡法制备Al2O3多孔陶瓷. 硅酸盐学报, 2020 , 48 (3) : 368 -374 . DOI: 10.14062/j.issn.0454-5648.20190343
Xiulan HE, Cheng WU, Wenzheng ZHANG, Wei ZHENG. Fabrication of Al2O3 Porous Ceramic by Gel-foaming Method with Sodium Alginate[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (3) : 368 -374 . DOI: 10.14062/j.issn.0454-5648.20190343
  • 国家自然科学基金(51302053)
  • 黑龙江省自然科学基金面上项目(E2018044)
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2020年第48卷第3期
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doi: 10.14062/j.issn.0454-5648.20190343
  • 接收时间:2019-05-22
  • 首发时间:2026-10-29
  • 出版时间:2020-03-20
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  • 收稿日期:2019-05-22
  • 修回日期:2019-06-12
基金
国家自然科学基金(51302053)
黑龙江省自然科学基金面上项目(E2018044)
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    哈尔滨理工大学材料科学与工程学院,哈尔滨 150040
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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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