Article(id=1319986577925849302, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986532933555119, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20211150, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1640534400000, receivedDateStr=2021-12-27, revisedDate=1642694400000, revisedDateStr=2022-01-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1792638924341, onlineDateStr=2026-10-22, pubDate=1655654400000, pubDateStr=2022-06-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792638924341, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792638924341, creator=13701087609, updateTime=1792638924341, updator=13701087609, issue=Issue{id=1319986532933555119, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='6', pageStart='1455', pageEnd='1774', issueExtLink='null', onlineDate='null', pubDate='1655654400000', pubDateStr='2022-06-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792638913615, creator='13701087609', updateTime=1792639299444, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319988151507075566, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986532933555119, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319988151507075567, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986532933555119, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1504, endPage=1511, ext={EN=ArticleExt(id=1319986579175751895, articleId=1319986577925849302, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Synthesis, Microstructure and Wear Resistance of High-Entropy (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C Ceramics, columnId=1321892005832151399, journalTitle=Journal of the Chinese Ceramic Society, columnName=Advanced High Entropy Ceramics—Research Articles, runingTitle=null, highlight=null, articleAbstract=

Transition metal carbide ceramics are typical representatives of ultra-high temperature ceramics with extremely high melting point and hardness. However, the toughness and wear resistance need to be improved. Based on the high-entropy theory, a multi-carbides solid solution, i.e., high-entropy carbides, has a higher melting point, a good toughness and superior friction/wear characteristics. In this paper, (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C high-entropy ceramics were prepared via spark plasma sintering (SPS) at 1 600-2 100 ℃, and the densification behavior, phase composition, microstructure, mechanical properties and wear resistance were investigated. The results show that (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C high-entropy ceramics with a single-phase face-centered cubic structure can be obtained by sintering at 1 700 ℃. The relative density of the high-entropy ceramics is greater than 98% at ≥1 900 ℃. The grain size increases and the elemental distribution becomes uniform as the sintering temperature increases from 1 700 ℃ to 2 100 ℃. The grain boundary sliding and oxide impurities (TiO2) aggregation occur at grain boundaries. The dislocations appear in grains. The optimal mechanical properties of the high-entropy ceramics prepared by sintering at 2 100 ℃ can be obtained, i.e., the Vickers hardness of 20 GPa, elastic modulus of 431 GPa and fracture toughness of 4.46 MPa·m1/2, respectively, and the average specific wear rate is 5×10-7 mm3/(N·m), showing a superior wear resistance.

, authors=Hao CHEN1, Zihao WU1, Shubo ZHANG1, Meiling LIU1, 2, Wanxiu HAI1, 2, Yuhong CHEN1, 2, Wenzhou SUN1, 2, authorsList=Hao CHEN, Zihao WU, Shubo ZHANG, Meiling LIU, Wanxiu HAI, Yuhong CHEN, Wenzhou SUN, authorCompany=null, correspAuthors=Wanxiu HAI, authorNote=

CHEN Hao (1995-), male, Master candidate. E-mail:

, correspAuthorsNote=
HAI Wanxiu (1983-), female, Ph.D., Associate Professor. E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319986581700722905, articleId=1319986577925849302, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的制备、微观结构与抗磨损性能, columnId=1321892006461297000, journalTitle=硅酸盐学报, columnName=新型高熵陶瓷材料专题—研究论文, runingTitle=null, highlight=null, articleAbstract=

过渡金属碳化物陶瓷是超高温陶瓷的典型代表,具有极高的熔点和硬度,而韧性和耐磨性有待提高。近年来,在高熵理论指导下合成的多元碳化物固溶体—高熵碳化物陶瓷具有更高的熔点和良好的韧性。本工作采用放电等离子烧结(SPS)制备了具有优异耐磨性能的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷。研究了1600~2100 ℃烧结的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的致密化行为、物相、微观形貌、力学和耐磨性能。结果表明,烧结温度为1700 ℃时,可得到面心立方结构的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷。1900 ℃以上时,高熵陶瓷相对密度大于98%。烧结温度由1700 ℃升高至2100 ℃,晶粒长大,元素扩散趋于均匀。晶粒间存在晶界滑动和氧化物杂质(TiO2)聚集,晶粒内部存在位错。2100 ℃烧结得到的高熵陶瓷的力学性能最优,Vickers硬度、弹性模量和断裂韧性分别增加到20 GPa、431 GPa和4.46 MPa·m1/2,同时具有优异的耐磨性,2100 ℃条件下烧结的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的平均比磨损率可低至5×10-7 mm3/(N·m)。

, authors=陈浩1, 伍子豪1, 张舒博1, 刘美玲1, 2, 海万秀1, 2, 陈宇红1, 2, 孙文周1, 2, authorsList=陈浩, 伍子豪, 张舒博, 刘美玲, 海万秀, 陈宇红, 孙文周, authorCompany=null, correspAuthors=海万秀, authorNote=

陈浩(1995—),男,硕士研究生。

, correspAuthorsNote=
海万秀(1983—),女,博士,副教授。
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CHEN Hao (1995-), male, Master candidate. E-mail:

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陈浩(1995—),男,硕士研究生。

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(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的制备、微观结构与抗磨损性能
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陈浩 1 , 伍子豪 1 , 张舒博 1 , 刘美玲 1, 2 , 海万秀 1, 2 , 陈宇红 1, 2 , 孙文周 1, 2
硅酸盐学报 | 新型高熵陶瓷材料专题—研究论文 2022,50(6): 1504-1511
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硅酸盐学报 |新型高熵陶瓷材料专题—研究论文 2022 , 50 (6) : 1504 -1511
(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的制备、微观结构与抗磨损性能
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陈浩1 , 伍子豪1, 张舒博1, 刘美玲1, 2, 海万秀1, 2 , 陈宇红1, 2, 孙文周1, 2
作者信息
  • 1.北方民族大学材料科学与工程学院,银川 750021
  • 2.北方民族大学,粉体材料与特种陶瓷重点实验室,银川 750021
通讯作者:
海万秀(1983—),女,博士,副教授。
作者简介:

陈浩(1995—),男,硕士研究生。

Synthesis, Microstructure and Wear Resistance of High-Entropy (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C Ceramics
Hao CHEN1 , Zihao WU1, Shubo ZHANG1, Meiling LIU1, 2, Wanxiu HAI1, 2 , Yuhong CHEN1, 2, Wenzhou SUN1, 2
Affiliations
  • 1.College of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
  • 2.Key Laboratory of Powder Materials & Advanced Ceramics, North Minzu University, Yinchuan 750021, China
  • Corresponding Author:
    HAI Wanxiu (1983-), female, Ph.D., Associate Professor. E-mail:

    CHEN Hao (1995-), male, Master candidate. E-mail:

出版时间: 2022-06-20 doi: 10.14062/j.issn.0454-5648.20211150
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过渡金属碳化物陶瓷是超高温陶瓷的典型代表,具有极高的熔点和硬度,而韧性和耐磨性有待提高。近年来,在高熵理论指导下合成的多元碳化物固溶体—高熵碳化物陶瓷具有更高的熔点和良好的韧性。本工作采用放电等离子烧结(SPS)制备了具有优异耐磨性能的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷。研究了1600~2100 ℃烧结的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的致密化行为、物相、微观形貌、力学和耐磨性能。结果表明,烧结温度为1700 ℃时,可得到面心立方结构的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷。1900 ℃以上时,高熵陶瓷相对密度大于98%。烧结温度由1700 ℃升高至2100 ℃,晶粒长大,元素扩散趋于均匀。晶粒间存在晶界滑动和氧化物杂质(TiO2)聚集,晶粒内部存在位错。2100 ℃烧结得到的高熵陶瓷的力学性能最优,Vickers硬度、弹性模量和断裂韧性分别增加到20 GPa、431 GPa和4.46 MPa·m1/2,同时具有优异的耐磨性,2100 ℃条件下烧结的(Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的平均比磨损率可低至5×10-7 mm3/(N·m)。

高熵陶瓷  /  放电等离子烧结  /  微观结构  /  耐磨性能

Transition metal carbide ceramics are typical representatives of ultra-high temperature ceramics with extremely high melting point and hardness. However, the toughness and wear resistance need to be improved. Based on the high-entropy theory, a multi-carbides solid solution, i.e., high-entropy carbides, has a higher melting point, a good toughness and superior friction/wear characteristics. In this paper, (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C high-entropy ceramics were prepared via spark plasma sintering (SPS) at 1 600-2 100 ℃, and the densification behavior, phase composition, microstructure, mechanical properties and wear resistance were investigated. The results show that (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C high-entropy ceramics with a single-phase face-centered cubic structure can be obtained by sintering at 1 700 ℃. The relative density of the high-entropy ceramics is greater than 98% at ≥1 900 ℃. The grain size increases and the elemental distribution becomes uniform as the sintering temperature increases from 1 700 ℃ to 2 100 ℃. The grain boundary sliding and oxide impurities (TiO2) aggregation occur at grain boundaries. The dislocations appear in grains. The optimal mechanical properties of the high-entropy ceramics prepared by sintering at 2 100 ℃ can be obtained, i.e., the Vickers hardness of 20 GPa, elastic modulus of 431 GPa and fracture toughness of 4.46 MPa·m1/2, respectively, and the average specific wear rate is 5×10-7 mm3/(N·m), showing a superior wear resistance.

high-entropy ceramic  /  spark plasma sintering  /  microstructure  /  wear resistance
陈浩, 伍子豪, 张舒博, 刘美玲, 海万秀, 陈宇红, 孙文周. (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C高熵陶瓷的制备、微观结构与抗磨损性能. 硅酸盐学报, 2022 , 50 (6) : 1504 -1511 . DOI: 10.14062/j.issn.0454-5648.20211150
Hao CHEN, Zihao WU, Shubo ZHANG, Meiling LIU, Wanxiu HAI, Yuhong CHEN, Wenzhou SUN. Synthesis, Microstructure and Wear Resistance of High-Entropy (Ti1/6V1/6Nb1/6Ta1/6Mo1/3)C Ceramics[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (6) : 1504 -1511 . DOI: 10.14062/j.issn.0454-5648.20211150
  • 国家自然科学基金(51762002)
  • 宁夏自然科学基金(2022AAC 03219)
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doi: 10.14062/j.issn.0454-5648.20211150
  • 接收时间:2021-12-27
  • 首发时间:2026-10-22
  • 出版时间:2022-06-20
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  • 收稿日期:2021-12-27
  • 修回日期:2022-01-21
基金
国家自然科学基金(51762002)
宁夏自然科学基金(2022AAC 03219)
作者信息
    1.北方民族大学材料科学与工程学院,银川 750021
    2.北方民族大学,粉体材料与特种陶瓷重点实验室,银川 750021

通讯作者:

海万秀(1983—),女,博士,副教授。
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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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