About: Heterodiamond     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole105869584, within Data Space : dbpedia.org associated with source document(s)
QRcode icon
http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FHeterodiamond

Heterodiamond is a superhard material containing boron, carbon, and nitrogen (BCN). It is formed at high temperatures and high pressures, e.g., by application of an explosive shock wave to a mixture of diamond and cubic boron nitride (c-BN). The heterodiamond is a polycrystalline material coagulated with nano-crystallites and the fine powder is tinged with deep bluish black. The heterodiamond has both the high hardness of diamond and the excellent heat resistance of cubic BN. These characteristic properties are due to the diamond structure combined with the sp3 σ-bonds among carbon and the hetero atoms.

AttributesValues
rdf:type
rdfs:label
  • Heterodiamond (en)
  • Eterodiamante (it)
  • Hétérodiamant (fr)
  • ヘテロダイヤモンド (ja)
rdfs:comment
  • ヘテロダイヤモンド(Heterodiamond)は、ホウ素、炭素、窒素を含む超硬度材料である。爆発的な衝撃波がダイヤモンドと立方晶系窒化ホウ素が混合した場合等、高温高圧下で形成される。ヘテロダイヤモンドは、ナノ結晶と微粒子が凝固して深青い黒みを帯びた多結晶材料である。ダイヤモンドの硬さと立方晶系窒化ホウ素の高い熱耐性を併せ持っている。これらの性質は、ダイヤモンド構造が、炭素原子とその他の原子の間のsp3混成軌道のシグマ結合と結びついているためである。 立方晶系のBC2Nは、グラファイト状のBC2Nを、18 GPa以上の圧力、2200 K以上の温度で処理することで合成できる。c-BC2Nの体積弾性率は、282 GPaと、ダイヤモンドとc-BNに次いで、既知の固体で最も高いものの1つである。c-BC2Nの硬度は、c-BNの単結晶よりも高い。 (ja)
  • Heterodiamond is a superhard material containing boron, carbon, and nitrogen (BCN). It is formed at high temperatures and high pressures, e.g., by application of an explosive shock wave to a mixture of diamond and cubic boron nitride (c-BN). The heterodiamond is a polycrystalline material coagulated with nano-crystallites and the fine powder is tinged with deep bluish black. The heterodiamond has both the high hardness of diamond and the excellent heat resistance of cubic BN. These characteristic properties are due to the diamond structure combined with the sp3 σ-bonds among carbon and the hetero atoms. (en)
  • L'hétérodiamant est un matériau superdur constitué de bore, de carbone et d'azote (BCN). Il est formé sous conditions de hautes températures et pressions, par exemple en soumettant à une onde de choc explosive un mélange de diamant et de nitrure de bore cubique (BNc). L'hétérodiamant est un matériau polycristallin constitué d'un agglomérat de nano-cristallites, et se présente sous la forme d'une fine poudre d'une teinte noir bleuté profond. L'hétérodiamant possède à la fois la dureté du diamant et l'excellente résistance à la chaleur du nitrure de bore. Ces propriétés caractéristiques sont dues à sa structure cristalline de type diamant, combinée aux liaisons σ sp3 entre le carbone et les hétéroatomes. (fr)
  • L'eterodiamante è un materiale superduro contenente boro, carbonio e azoto (BCN). Si forma ad alte temperature e alte pressioni, ad esempio mediante l'applicazione di un'onda d'urto esplosiva a una miscela di diamante e nitruro di boro cubico (c-BN). L'eterodiamante è un coagulato con nanocristalli; la polvere fine che si ottiene si tinge di colore nero bluastro. L'eterodiamante ha sia l'elevata durezza del diamante che l'ottima del nitruro di boro cubico. Queste proprietà caratteristiche sono dovute alla struttura del diamante combinata con i legami sp3 σ tra il carbonio e gli atomi etero. (it)
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
dbp:wikiPageUsesTemplate
has abstract
  • Heterodiamond is a superhard material containing boron, carbon, and nitrogen (BCN). It is formed at high temperatures and high pressures, e.g., by application of an explosive shock wave to a mixture of diamond and cubic boron nitride (c-BN). The heterodiamond is a polycrystalline material coagulated with nano-crystallites and the fine powder is tinged with deep bluish black. The heterodiamond has both the high hardness of diamond and the excellent heat resistance of cubic BN. These characteristic properties are due to the diamond structure combined with the sp3 σ-bonds among carbon and the hetero atoms. Cubic BC2N can be synthesized from graphite-like BC2N at pressures above 18 GPa and temperatures higher than 2200 K. The bulk modulus of c-BC2N is 282 GPa which is one of the highest bulk moduli known for any solid, and is exceeded only by the bulk moduli of diamond and c-BN. The hardness of c-BC2N is higher than that of c-BN single crystals. (en)
  • L'hétérodiamant est un matériau superdur constitué de bore, de carbone et d'azote (BCN). Il est formé sous conditions de hautes températures et pressions, par exemple en soumettant à une onde de choc explosive un mélange de diamant et de nitrure de bore cubique (BNc). L'hétérodiamant est un matériau polycristallin constitué d'un agglomérat de nano-cristallites, et se présente sous la forme d'une fine poudre d'une teinte noir bleuté profond. L'hétérodiamant possède à la fois la dureté du diamant et l'excellente résistance à la chaleur du nitrure de bore. Ces propriétés caractéristiques sont dues à sa structure cristalline de type diamant, combinée aux liaisons σ sp3 entre le carbone et les hétéroatomes. Le BC2N cubique peut être synthétisé à partir du BC2N « graphite », à des pressions supérieures à 18 GPa et des températures supérieures à 2 200 K. Le module d'élasticité isostatique de c-BC2N vaut 282 GPa, ce qui est l'un des plus grands modules connu parmi tous les solides, dépassé uniquement par le module du diamant et du BNc. La dureté de BC2N cubique est supérieure à celles des monocristaux de BNc. (fr)
  • ヘテロダイヤモンド(Heterodiamond)は、ホウ素、炭素、窒素を含む超硬度材料である。爆発的な衝撃波がダイヤモンドと立方晶系窒化ホウ素が混合した場合等、高温高圧下で形成される。ヘテロダイヤモンドは、ナノ結晶と微粒子が凝固して深青い黒みを帯びた多結晶材料である。ダイヤモンドの硬さと立方晶系窒化ホウ素の高い熱耐性を併せ持っている。これらの性質は、ダイヤモンド構造が、炭素原子とその他の原子の間のsp3混成軌道のシグマ結合と結びついているためである。 立方晶系のBC2Nは、グラファイト状のBC2Nを、18 GPa以上の圧力、2200 K以上の温度で処理することで合成できる。c-BC2Nの体積弾性率は、282 GPaと、ダイヤモンドとc-BNに次いで、既知の固体で最も高いものの1つである。c-BC2Nの硬度は、c-BNの単結晶よりも高い。 (ja)
  • L'eterodiamante è un materiale superduro contenente boro, carbonio e azoto (BCN). Si forma ad alte temperature e alte pressioni, ad esempio mediante l'applicazione di un'onda d'urto esplosiva a una miscela di diamante e nitruro di boro cubico (c-BN). L'eterodiamante è un coagulato con nanocristalli; la polvere fine che si ottiene si tinge di colore nero bluastro. L'eterodiamante ha sia l'elevata durezza del diamante che l'ottima del nitruro di boro cubico. Queste proprietà caratteristiche sono dovute alla struttura del diamante combinata con i legami sp3 σ tra il carbonio e gli atomi etero. L'eterodiamante cubico può essere sintetizzato dall'eterodiamante simile alla grafite a pressioni superiori a 18 GPa e temperature superiori a 2200 K. Il modulo di Bulk di c-BC2N è 282 GPa, che è uno dei più alti noti per qualsiasi solido, ed è superato solo dai moduli di massa del diamante e del c-BN. La durezza del c-BC2N è superiore a quella dei singoli cristalli c-BN. (it)
gold:hypernym
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 60 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software