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Amorphous-based B-C-Mg thin films obtained through a composition design using cluster-plus-glue-atom model
Zhou, Xuyang1; Ma, Yanping1,2; Gong, Faquan1,3; Wu, Aimin1,4; Chen, Chonglin5; Dong, Chuang1
KeywordBorides Amorphous Materials Thin Film Hardness Cluster-plus-glue-atom Model
Source PublicationSURFACE & COATINGS TECHNOLOGY
2014-03-15
DOI10.1016/j.surfcoat.2013.12.076
Volume242Pages:14-19
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS Research AreaMaterials Science ; Physics
WOS KeywordBULK METALLIC GLASSES ; MECHANICAL-PROPERTIES ; CRYSTAL-STRUCTURE ; DEPOSITION ; TOUGHNESS ; ALMGB14 ; MICROSTRUCTURE ; FORMULAS ; SI
Abstractobtain protecting thin films with excellent comprehensive properties, B-rich B-C-Mg amorphous thin films were designed using the cluster-plus-glue-atom model and then fabricated through magnetron sputtering technique. A type of cluster formula [B-(B6-x/2Cx/2)](B6-x/2Mgx/2)(X <= 2), that contains 24 valence electrons per unit cluster formula, was derived from relevant crystalline borides B12C2Mg and B7Mg. Amorphous and amorphous/nanocrystal thin films covering roughly a composition range formulated by [B-B5C]Mg (x = 2) similar to [B-BS.5C0.5]B0.5Mg0.5 (x = 1), prepared by magnetron sputtering, show increasing hardness, elastic modulus, toughness and coefficient of friction with increasing boron contents. The amorphous thin film corresponding to the critical of cluster formula, [B-B5C]Mg (x = 2), can probably be a good protective coating material for its relatively high hardness, about 24 GPa, and a fairly low coefficient of friction, about 0.05 (in air at room temperature, load 5N, Si3N4 ball as the counterpart). In addition, amorphous/nanocrystal sample B85.1C8.7Mg6.2 possesses a high hardness of 34 GPa in combination with a toughness of 3 MPa*m(1/2), being comparable to that of nc-TiN/SixN nanocomposite. (C) 2014 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000333782400003
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/145688
Collection中国科学院大连化学物理研究所
Affiliation1.Dalian Univ Technol, Key Lab Mat Modificat, Minist Educ, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
2.Hainan Univ, Special Glass Key Lab Hainan Prov, Sch Mat & Chem Engn, Haikou 570228, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Chem Lasers, Dalian 116023, Peoples R China
4.Dalian Univ Technol, Changzhou Inst, Changzhou 213164, Peoples R China
5.Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA
Recommended Citation
GB/T 7714
Zhou, Xuyang,Ma, Yanping,Gong, Faquan,et al. Amorphous-based B-C-Mg thin films obtained through a composition design using cluster-plus-glue-atom model[J]. SURFACE & COATINGS TECHNOLOGY,2014,242:14-19.
APA Zhou, Xuyang,Ma, Yanping,Gong, Faquan,Wu, Aimin,Chen, Chonglin,&Dong, Chuang.(2014).Amorphous-based B-C-Mg thin films obtained through a composition design using cluster-plus-glue-atom model.SURFACE & COATINGS TECHNOLOGY,242,14-19.
MLA Zhou, Xuyang,et al."Amorphous-based B-C-Mg thin films obtained through a composition design using cluster-plus-glue-atom model".SURFACE & COATINGS TECHNOLOGY 242(2014):14-19.
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