Source:http://linkedlifedata.com/resource/pubmed/id/18643517
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
23
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pubmed:dateCreated |
2008-7-22
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pubmed:abstractText |
We show that electronegativity can be used to effectively identify the hardness of crystal materials on the basis of a new microscopic model for hardness. Bond electronegativity is proposed to characterize the electron-holding energy of a bond, which is the intrinsic origin of hardness. Applying this model to c-BC(2)N materials, we confirm the proper bond composition of the experimentally observed phase of c-BC(2)N, in which the bond ratio N(C-C):N(B-N):N(B-C):N(C-N) is 3:3:1:1. A number of bonds that can or cannot form a superhard material are qualitatively distinguished, which enables us to explore novel superhard materials by screening possible elemental combinations.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0031-9007
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
13
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pubmed:volume |
100
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
235504
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pubmed:year |
2008
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pubmed:articleTitle |
Electronegativity identification of novel superhard materials.
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pubmed:affiliation |
Department of Materials Science and Chemical Engineering, Dalian University of Technology, Dalian, PR China.
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pubmed:publicationType |
Journal Article
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