Aluminum magnesium boride or Al3Mg3B56 colliqually known as BAM is a chemical compound of aluminium, magnesium and boron. Whereas its nominal formula is AlMgB14, the chemical composition is closer to Al0.75Mg0.75B14. It is a ceramic alloy that is highly resistive to wear and has an extremely low coefficient of sliding friction, reaching a record value of 0.04 in unlubricated and 0.02 in lubricated AlMgB14−TiB2 composites. First reported in 1970, BAM has an orthorhombic structure with four icosahedral B12 units per unit cell. This ultrahard material has a coefficient of thermal expansion comparable to that of other widely used materials such as steel and concrete.
| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:label
| - Aluminium magnesium boride (en)
- Boro alluminio magnesio (it)
- Borure d'aluminium-magnésium (fr)
|
| rdfs:comment
| - Aluminum magnesium boride or Al3Mg3B56 colliqually known as BAM is a chemical compound of aluminium, magnesium and boron. Whereas its nominal formula is AlMgB14, the chemical composition is closer to Al0.75Mg0.75B14. It is a ceramic alloy that is highly resistive to wear and has an extremely low coefficient of sliding friction, reaching a record value of 0.04 in unlubricated and 0.02 in lubricated AlMgB14−TiB2 composites. First reported in 1970, BAM has an orthorhombic structure with four icosahedral B12 units per unit cell. This ultrahard material has a coefficient of thermal expansion comparable to that of other widely used materials such as steel and concrete. (en)
- Un borure d'aluminium-magnésium, ou BAM, est un composé chimique de formule générique M1x M2y Xz B14−z, où M1 et M2 = Al, Mg, Li, Na ou Y, et X = Ti, C ou Si, généralement écrite AlMgB14 par simplification. Ces alliages sont des céramiques très résistantes à l'usure et qui présentent un coefficient de frottement particulièrement faible, atteignant 0,04 pour les composites AlMgB14–TiB2 non lubrifiés, et 0,02 en milieu lubrifié. Leur structure cristalline appartient au système orthorhombique avec quatre unités B12 icosaédriques par maille élémentaire. Leur coefficient de dilatation thermique est comparable à celui d'autres matériaux largement utilisés, comme l'acier et le béton. (fr)
- Il magnesio boruro di alluminio o Al3 Mg3 B56 noto comunemente come BAM è un composto chimico di alluminio, magnesio e boro. Mentre la sua formula ideale è AlMgB14, la composizione chimica effettiva può variare, in genere è vicina a Al0,75 Mg0,75 B14. È una lega ceramica altamente resistente all'usura e con un coefficiente di attrito estremamente basso, che raggiunge il valore record di 0,02 nei compositi lubrificati AlMgB14 −TiB2. Segnalato per la prima volta nel 1970, il BAM ha una struttura ortorombica con quattro unità icosaedri B12 per cella unitaria. Questo materiale ultraduro ha un coefficiente di dilatazione termica paragonabile a quello di altri materiali ampiamente usati come acciaio e cemento. (it)
|
| foaf:depiction
| |
| dct:subject
| |
| Wikipage page ID
| |
| Wikipage revision ID
| |
| Link from a Wikipage to another Wikipage
| |
| Link from a Wikipage to an external page
| |
| sameAs
| |
| dbp:wikiPageUsesTemplate
| |
| thumbnail
| |
| has abstract
| - Aluminum magnesium boride or Al3Mg3B56 colliqually known as BAM is a chemical compound of aluminium, magnesium and boron. Whereas its nominal formula is AlMgB14, the chemical composition is closer to Al0.75Mg0.75B14. It is a ceramic alloy that is highly resistive to wear and has an extremely low coefficient of sliding friction, reaching a record value of 0.04 in unlubricated and 0.02 in lubricated AlMgB14−TiB2 composites. First reported in 1970, BAM has an orthorhombic structure with four icosahedral B12 units per unit cell. This ultrahard material has a coefficient of thermal expansion comparable to that of other widely used materials such as steel and concrete. (en)
- Un borure d'aluminium-magnésium, ou BAM, est un composé chimique de formule générique M1x M2y Xz B14−z, où M1 et M2 = Al, Mg, Li, Na ou Y, et X = Ti, C ou Si, généralement écrite AlMgB14 par simplification. Ces alliages sont des céramiques très résistantes à l'usure et qui présentent un coefficient de frottement particulièrement faible, atteignant 0,04 pour les composites AlMgB14–TiB2 non lubrifiés, et 0,02 en milieu lubrifié. Leur structure cristalline appartient au système orthorhombique avec quatre unités B12 icosaédriques par maille élémentaire. Leur coefficient de dilatation thermique est comparable à celui d'autres matériaux largement utilisés, comme l'acier et le béton. (fr)
- Il magnesio boruro di alluminio o Al3 Mg3 B56 noto comunemente come BAM è un composto chimico di alluminio, magnesio e boro. Mentre la sua formula ideale è AlMgB14, la composizione chimica effettiva può variare, in genere è vicina a Al0,75 Mg0,75 B14. È una lega ceramica altamente resistente all'usura e con un coefficiente di attrito estremamente basso, che raggiunge il valore record di 0,02 nei compositi lubrificati AlMgB14 −TiB2. Segnalato per la prima volta nel 1970, il BAM ha una struttura ortorombica con quattro unità icosaedri B12 per cella unitaria. Questo materiale ultraduro ha un coefficiente di dilatazione termica paragonabile a quello di altri materiali ampiamente usati come acciaio e cemento. (it)
|
| gold:hypernym
| |
| prov:wasDerivedFrom
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)
