| 释义 |
Definition of graphite in English: graphitenoun ˈɡrafʌɪtˈɡræˌfaɪt mass nounA grey crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors. Example sentencesExamples - Students were allowed to use graphite pencil or a very fine-tipped felt pen.
- The sample contains graphite, but no monazite was found in the heavy mineral concentrates.
- The cesium ions interact with the graphite and eject the carbon ions.
- For instance, carbon may exist as either graphite or diamond in its solid phase.
- A nanotube is essentially a sheet of graphite rolled into a cylinder forming a single molecule.
- A scanning tunneling microscope image shows liquid crystal molecules aligned on a sheet of graphite.
- A diamond is a perfect crystal lattice while the graphite arrangement is more random.
- One of the benefits of using graphite is that it keeps the silver from oxidizing, so bullets come out bright and shiny.
- One possibility of this sort of manipulation could turn carbon into either graphite or diamond.
- Some materials commonly used as unreactive anodes are platinum and graphite.
- Diamond and graphite both have a variety of important commercial and industrial uses.
- Carbon, in the forms of charcoal, graphite, and diamond, was one of the earliest elements known to man.
- With the exception of graphite, they are poor conductors of electricity.
- The leads are comprised of finely ground graphite and clay, which results in smooth, consistent lay down.
- Permanent moulds also can be made from either bronze, aluminum, rubber or graphite.
- It involved passing an electrical discharge between two rods of graphite (which is pure carbon).
- It even resumed operations of an experimental graphite nuclear reactor.
- The sheet of graphite has rows of conjoined hexagons, separated by horizontally running zig-zag lines.
- Erasers made for graphite in black pencils work by adhesion, lifting the mark from the paper.
- Arrows can be made from wood, fibreglass, aluminium and carbon graphite.
Derivatives adjective ɡraˈfɪtɪk This is essentially a dark, fine grained unit, dominated by black, graphitic, foliated claystones and siltstones. Example sentencesExamples - Pore fluid expansion is thus greater in graphitic than nongraphitic rocks, and is likely to promote microcracking in graphitic rocks.
- Related work to purify semiconducting nanotubes and remove graphitic contamination is also being carried out.
- Helical microtubules of graphitic carbon have also been found.
- The conventionally measured hardness of graphitic irons is influenced by the graphite, especially in gray iron.
Origin Late 18th century: coined in German (Graphit), from Greek graphein 'write' (because of its use as pencil ‘lead’). Definition of graphite in US English: graphitenounˈɡræˌfaɪtˈɡraˌfīt A gray crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors. Example sentencesExamples - With the exception of graphite, they are poor conductors of electricity.
- Permanent moulds also can be made from either bronze, aluminum, rubber or graphite.
- Some materials commonly used as unreactive anodes are platinum and graphite.
- The cesium ions interact with the graphite and eject the carbon ions.
- One possibility of this sort of manipulation could turn carbon into either graphite or diamond.
- Diamond and graphite both have a variety of important commercial and industrial uses.
- A scanning tunneling microscope image shows liquid crystal molecules aligned on a sheet of graphite.
- The sample contains graphite, but no monazite was found in the heavy mineral concentrates.
- A nanotube is essentially a sheet of graphite rolled into a cylinder forming a single molecule.
- Arrows can be made from wood, fibreglass, aluminium and carbon graphite.
- It even resumed operations of an experimental graphite nuclear reactor.
- One of the benefits of using graphite is that it keeps the silver from oxidizing, so bullets come out bright and shiny.
- Carbon, in the forms of charcoal, graphite, and diamond, was one of the earliest elements known to man.
- Erasers made for graphite in black pencils work by adhesion, lifting the mark from the paper.
- For instance, carbon may exist as either graphite or diamond in its solid phase.
- The leads are comprised of finely ground graphite and clay, which results in smooth, consistent lay down.
- Students were allowed to use graphite pencil or a very fine-tipped felt pen.
- The sheet of graphite has rows of conjoined hexagons, separated by horizontally running zig-zag lines.
- A diamond is a perfect crystal lattice while the graphite arrangement is more random.
- It involved passing an electrical discharge between two rods of graphite (which is pure carbon).
Origin Late 18th century: coined in German ( Graphit), from Greek graphein ‘write’ (because of its use as pencil ‘lead’). |