Article(id=1319987051957698793, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210751, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1630339200000, receivedDateStr=2021-08-31, revisedDate=1631721600000, revisedDateStr=2021-09-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1792639037360, onlineDateStr=2026-10-22, pubDate=1647705600000, pubDateStr=2022-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792639037360, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792639037360, creator=13701087609, updateTime=1792639037360, 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=698, endPage=703, ext={EN=ArticleExt(id=1319987052150636778, articleId=1319987051957698793, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Near Net Size Preparation and Properties of Porous Mullite Ceramics, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

Near net size preparation of porous mullite ceramics with controllable shrinkage was achieved via gel casting and pore-forming agent process With Al2O3 and kyanite as raw materials, PMMA microspheres as a pore-forming agent, and isobutylene/maleic anhydride copolymer (Isobam104) as a gelling/dispersing agent. The effect of sintering temperature on the phase composition and the effect of solid loading on the microstructure, phase composition, shrinkage, porosity, and compressive strength of samples were investigated. The results show that the shrinkage of samples sintered at 1 500 ℃ firstly decreases and then increases as the solid loading increases. At the solid loading of 30%(in volume fraction) and the content of pore forming agent of 30%(in mass fraction), the total shrinkage of the samples is close to zero, realizing the near net size preparation of porous mullite ceramics. The prepared porous mullite ceramics exhibite a higher porosity (i.e., 60.4%), a smaller average pore size (i.e., 3.75 μm) and a higher compressive strength (i.e., 8.3 MPa). The shrinkage of porous ceramics can be effectively controlled by the volume expansion effect in the preparation process, and the near net size preparation of porous mullite ceramics is of great significance for the preparation of large-size and complex porous ceramic parts and the reduction of processing cost.

, authors=Hao YAN1, 2, Shile CHEN2, Ying LANG1, Chang'an WANG2, authorsList=Hao YAN, Shile CHEN, Ying LANG, Chang'an WANG, authorCompany=null, correspAuthors=Chang'an WANG, authorNote=

YAN Hao (1997-), male, Master candidate. E-mail:

, correspAuthorsNote=
WANG Chang'an (1969-), male, Ph.D., Professor. E-mail:
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以蓝晶石和Al2O3粉体为原料、PMMA微球为造孔剂、Isobam104为分散胶凝剂,结合凝胶注模工艺与造孔剂法,实现了收缩率可控的多孔莫来石陶瓷的近净尺寸制备。研究了烧结温度对相组成的影响以及固相含量对样品微观结构、相组成、收缩率、气孔率及抗压强度的影响。结果表明:随着固相含量的增加,样品在1 500 ℃烧结后收缩率先减小后增大,在固相含量为30%(体积分数)、造孔剂含量为30%(质量分数)时,样品的总收缩率接近于0,实现了多孔莫来石陶瓷的近净尺寸制备。多孔莫来石陶瓷呈现出较高的气孔率(60.4%)、较小的平均气孔尺寸(3.75 µm)和较高的抗压强度(8.3 MPa)。利用制备过程中的体积膨胀效应,可以有效地控制多孔陶瓷制备过程中的收缩率,实现了多孔莫来石陶瓷的近净尺寸制备,对制备大尺寸复杂形状多孔陶瓷部件、降低加工成本具有重要参考价值。

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颜浩(1997—),男,硕士研究生。

, correspAuthorsNote=
汪长安(1969—),男,博士,教授。
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多孔莫来石陶瓷的近净尺寸制备及性能
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颜浩 1, 2 , 陈仕乐 2 , 郎莹 1 , 汪长安 2
硅酸盐学报 | 研究论文 2022,50(3): 698-703
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硅酸盐学报 |研究论文 2022 , 50 (3) : 698 -703
多孔莫来石陶瓷的近净尺寸制备及性能
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颜浩1, 2 , 陈仕乐2, 郎莹1, 汪长安2
作者信息
  • 1.景德镇陶瓷大学材料科学与工程学院,江西 景德镇 333403
  • 2.清华大学材料学院,新型陶瓷与精细工艺国家重点实验室,北京 100084
通讯作者:
汪长安(1969—),男,博士,教授。
作者简介:

颜浩(1997—),男,硕士研究生。

Near Net Size Preparation and Properties of Porous Mullite Ceramics
Hao YAN1, 2 , Shile CHEN2, Ying LANG1, Chang'an WANG2
Affiliations
  • 1.School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, China
  • 2.State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Corresponding Author:
    WANG Chang'an (1969-), male, Ph.D., Professor. E-mail:

    YAN Hao (1997-), male, Master candidate. E-mail:

出版时间: 2022-03-20 doi: 10.14062/j.issn.0454-5648.20210751
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以蓝晶石和Al2O3粉体为原料、PMMA微球为造孔剂、Isobam104为分散胶凝剂,结合凝胶注模工艺与造孔剂法,实现了收缩率可控的多孔莫来石陶瓷的近净尺寸制备。研究了烧结温度对相组成的影响以及固相含量对样品微观结构、相组成、收缩率、气孔率及抗压强度的影响。结果表明:随着固相含量的增加,样品在1 500 ℃烧结后收缩率先减小后增大,在固相含量为30%(体积分数)、造孔剂含量为30%(质量分数)时,样品的总收缩率接近于0,实现了多孔莫来石陶瓷的近净尺寸制备。多孔莫来石陶瓷呈现出较高的气孔率(60.4%)、较小的平均气孔尺寸(3.75 µm)和较高的抗压强度(8.3 MPa)。利用制备过程中的体积膨胀效应,可以有效地控制多孔陶瓷制备过程中的收缩率,实现了多孔莫来石陶瓷的近净尺寸制备,对制备大尺寸复杂形状多孔陶瓷部件、降低加工成本具有重要参考价值。

多孔莫来石陶瓷  /  凝胶注模  /  造孔剂  /  近净尺寸制备

Near net size preparation of porous mullite ceramics with controllable shrinkage was achieved via gel casting and pore-forming agent process With Al2O3 and kyanite as raw materials, PMMA microspheres as a pore-forming agent, and isobutylene/maleic anhydride copolymer (Isobam104) as a gelling/dispersing agent. The effect of sintering temperature on the phase composition and the effect of solid loading on the microstructure, phase composition, shrinkage, porosity, and compressive strength of samples were investigated. The results show that the shrinkage of samples sintered at 1 500 ℃ firstly decreases and then increases as the solid loading increases. At the solid loading of 30%(in volume fraction) and the content of pore forming agent of 30%(in mass fraction), the total shrinkage of the samples is close to zero, realizing the near net size preparation of porous mullite ceramics. The prepared porous mullite ceramics exhibite a higher porosity (i.e., 60.4%), a smaller average pore size (i.e., 3.75 μm) and a higher compressive strength (i.e., 8.3 MPa). The shrinkage of porous ceramics can be effectively controlled by the volume expansion effect in the preparation process, and the near net size preparation of porous mullite ceramics is of great significance for the preparation of large-size and complex porous ceramic parts and the reduction of processing cost.

porous mullite ceramics  /  gelcasting  /  pore forming agent  /  near net size preparation
颜浩, 陈仕乐, 郎莹, 汪长安. 多孔莫来石陶瓷的近净尺寸制备及性能. 硅酸盐学报, 2022 , 50 (3) : 698 -703 . DOI: 10.14062/j.issn.0454-5648.20210751
Hao YAN, Shile CHEN, Ying LANG, Chang'an WANG. Near Net Size Preparation and Properties of Porous Mullite Ceramics[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (3) : 698 -703 . DOI: 10.14062/j.issn.0454-5648.20210751
  • 国家自然科学基金(51872159)
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doi: 10.14062/j.issn.0454-5648.20210751
  • 接收时间:2021-08-31
  • 首发时间:2026-10-22
  • 出版时间:2022-03-20
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  • 收稿日期:2021-08-31
  • 修回日期:2021-09-16
基金
国家自然科学基金(51872159)
作者信息
    1.景德镇陶瓷大学材料科学与工程学院,江西 景德镇 333403
    2.清华大学材料学院,新型陶瓷与精细工艺国家重点实验室,北京 100084

通讯作者:

汪长安(1969—),男,博士,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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