Article(id=1322612192436928762, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190385, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1559750400000, receivedDateStr=2019-06-06, revisedDate=1561219200000, revisedDateStr=2019-06-23, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264919622, onlineDateStr=2026-10-29, pubDate=1584633600000, pubDateStr=2020-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264919622, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264919622, creator=13701087609, updateTime=1793264919622, 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=362, endPage=367, ext={EN=ArticleExt(id=1322612192617283835, articleId=1322612192436928762, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Reinforced Si3N4 Ceramic Foam with Dense Outer Shell, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

A Si3N4 ceramic foam having a shell with the thickness of 500 μm and the thickest portion of 693 μm was prepared by a reaction sintering method with a pre-embedding powder. The shell sintered at 1 400 ℃ for 6 h appears a staggered crystal columnar structure. The length of the crystal column in the shell increases slightly when the nitriding temperature is 1 450 ℃. Prolonging the nitriding time to 10 h can transform the microstructure of shell into a coarse crystalline column structure, thus reducing an aspect ratio of the crystal column. The shell has a ceramic foam with a certain degree of elasticity (i.e., Young's modulus of elasticity is 117-352 MPa), and increases the compressive strength of the sample by 47%. In addition, the presence of shell has little effect on the porosity, density and thermal conductivity of ceramic foam.

, authors=Feiyue YANG, Shuang ZHAO, Zichun YANG, Guobing CHEN, Shuowei YUAN, authorsList=Feiyue YANG, Shuang ZHAO, Zichun YANG, Guobing CHEN, Shuowei YUAN, authorCompany=null, correspAuthors=Zichun YANG, authorNote=

YANG Feiyue (1994-), male, Master candidate. E-mail:

, correspAuthorsNote=
YANG Zichun (1967-), male, Ph.D., Professor. E-mail:
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采用反应烧结法制备氮化硅泡沫陶瓷,对坯体进行预埋粉处理,烧结得到厚度为500 μm左右的致密外壳,最厚处可达693 μm。经1 400 ℃氮化6 h后,外壳的微观形貌为交错排列的晶柱状;氮化温度升至1 450 ℃时,壳层中晶柱长度有所增加。氮化时间延长至10 h后,外壳的微观形貌均转变为粗晶柱状,降低了晶柱的长径比。外壳使泡沫陶瓷具有一定弹性(杨氏弹性模量为117-352 MPa),其抗压缩强度相对无外壳样品最高提升47%。并且,外部壳层的存在对泡沫陶瓷的开孔率、密度及导热系数影响非常小。

, authors=杨飞跃, 赵爽, 杨自春, 陈国兵, 袁硕伟, authorsList=杨飞跃, 赵爽, 杨自春, 陈国兵, 袁硕伟, authorCompany=null, correspAuthors=杨自春, authorNote=

杨飞跃(1994—),男,硕士研究生。

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杨自春(1967—),男,博士,教授。
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致密外壳整体增强Si3N4泡沫陶瓷的制备及性能
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杨飞跃 , 赵爽 , 杨自春 , 陈国兵 , 袁硕伟
硅酸盐学报 | 2020,48(3): 362-367
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硅酸盐学报 | 2020 , 48 (3) : 362 -367
致密外壳整体增强Si3N4泡沫陶瓷的制备及性能
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杨飞跃 , 赵爽, 杨自春 , 陈国兵, 袁硕伟
作者信息
  • 海军工程大学动力工程学院,武汉 430032
通讯作者:
杨自春(1967—),男,博士,教授。
作者简介:

杨飞跃(1994—),男,硕士研究生。

Reinforced Si3N4 Ceramic Foam with Dense Outer Shell
Feiyue YANG , Shuang ZHAO, Zichun YANG , Guobing CHEN, Shuowei YUAN
Affiliations
  • School of Power Engineering, Naval University of Engineering, Wuhan 430032, China
  • Corresponding Author:
    YANG Zichun (1967-), male, Ph.D., Professor. E-mail:

    YANG Feiyue (1994-), male, Master candidate. E-mail:

出版时间: 2020-03-20 doi: 10.14062/j.issn.0454-5648.20190385
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采用反应烧结法制备氮化硅泡沫陶瓷,对坯体进行预埋粉处理,烧结得到厚度为500 μm左右的致密外壳,最厚处可达693 μm。经1 400 ℃氮化6 h后,外壳的微观形貌为交错排列的晶柱状;氮化温度升至1 450 ℃时,壳层中晶柱长度有所增加。氮化时间延长至10 h后,外壳的微观形貌均转变为粗晶柱状,降低了晶柱的长径比。外壳使泡沫陶瓷具有一定弹性(杨氏弹性模量为117-352 MPa),其抗压缩强度相对无外壳样品最高提升47%。并且,外部壳层的存在对泡沫陶瓷的开孔率、密度及导热系数影响非常小。

氮化硅泡沫陶瓷  /  外壳  /  晶体形貌  /  抗压缩强度

A Si3N4 ceramic foam having a shell with the thickness of 500 μm and the thickest portion of 693 μm was prepared by a reaction sintering method with a pre-embedding powder. The shell sintered at 1 400 ℃ for 6 h appears a staggered crystal columnar structure. The length of the crystal column in the shell increases slightly when the nitriding temperature is 1 450 ℃. Prolonging the nitriding time to 10 h can transform the microstructure of shell into a coarse crystalline column structure, thus reducing an aspect ratio of the crystal column. The shell has a ceramic foam with a certain degree of elasticity (i.e., Young's modulus of elasticity is 117-352 MPa), and increases the compressive strength of the sample by 47%. In addition, the presence of shell has little effect on the porosity, density and thermal conductivity of ceramic foam.

silicon nitride foam ceramics  /  outer shell  /  crystal morphology  /  compressive strength
杨飞跃, 赵爽, 杨自春, 陈国兵, 袁硕伟. 致密外壳整体增强Si3N4泡沫陶瓷的制备及性能. 硅酸盐学报, 2020 , 48 (3) : 362 -367 . DOI: 10.14062/j.issn.0454-5648.20190385
Feiyue YANG, Shuang ZHAO, Zichun YANG, Guobing CHEN, Shuowei YUAN. Reinforced Si3N4 Ceramic Foam with Dense Outer Shell[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (3) : 362 -367 . DOI: 10.14062/j.issn.0454-5648.20190385
  • 国家自然科学基金(51802347)
  • 湖北省自然科学基金(2018CFB183)
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doi: 10.14062/j.issn.0454-5648.20190385
  • 接收时间:2019-06-06
  • 首发时间:2026-10-29
  • 出版时间:2020-03-20
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  • 收稿日期:2019-06-06
  • 修回日期:2019-06-23
基金
国家自然科学基金(51802347)
湖北省自然科学基金(2018CFB183)
作者信息
    海军工程大学动力工程学院,武汉 430032

通讯作者:

杨自春(1967—),男,博士,教授。
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2种不同金属材料的力学参数
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Family
属数
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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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