What's the difference between diamond and graphite?

Diamond


Definition:

  • (n.) A precious stone or gem excelling in brilliancy and beautiful play of prismatic colors, and remarkable for extreme hardness.
  • (n.) A geometrical figure, consisting of four equal straight lines, and having two of the interior angles acute and two obtuse; a rhombus; a lozenge.
  • (n.) One of a suit of playing cards, stamped with the figure of a diamond.
  • (n.) A pointed projection, like a four-sided pyramid, used for ornament in lines or groups.
  • (n.) The infield; the square space, 90 feet on a side, having the bases at its angles.
  • (n.) The smallest kind of type in English printing, except that called brilliant, which is seldom seen.
  • (a.) Resembling a diamond; made of, or abounding in, diamonds; as, a diamond chain; a diamond field.

Example Sentences:

  • (1) The most suitable condition for mucosalplasty revealed the size of the diamond particle to be 200 microns, and rotational speed to be between 12,000-20,000 rpm.
  • (2) Of roots treated by diamond burs, 165 stained areas were evaluated; 9 (5.5%) exhibited bacteria.
  • (3) Hopes that the Queen's diamond jubilee and the £9bn spent on the Olympics would lift sales over the longer term have largely been dashed as growth slows and the outlook, though robust with a growing order book, remains subdued.
  • (4) The pieces include a barrel-shaped diamond worth at least $5m (£3.3m) and a Cartier diamond tiara estimated to be worth more than $100,000.
  • (5) The diamond midfield that Klinsmann has tried to introduce of late requires Altidore to do a lot of muscling and running up front, with Clint Dempsey free to run off him when the USA attack.
  • (6) In the context of a simplified diamond lattice model of a six-member, Greek key beta-barrel protein that is closely related in topology to plastocyanin, the nature of the folding and unfolding pathways have been investigated using dynamic Monte Carlo techniques.
  • (7) In the 18 asymptomatic diamond assorters, electrophysiological studies revealed an ulnar neuropathy in two (again in the hand used for holding the eye-glass).
  • (8) I don’t think if you go and pass a piece of legislation that said that a diamond is a square makes diamonds squares, they’re two different things.
  • (9) Left ventricular compliance was evaluated by various indices (Diamond, Mirsky, Gaasch, Laird), and was found to be increased equally in the chronic and acute types.
  • (10) The selection of diamond-coates whetstones manufactured by Chirana for turbine drills is extended at present by two new types of toods with a different size of diamond particles.
  • (11) This cross-sectional study was undertaken after the discovery of cobalt-related fibrosing alveolitis and bronchial asthma in diamond polishers occupationally exposed to cobalt.
  • (12) In January 2007 the Guardian disclosed that BAE had used an offshore front company, Red Diamond , to secretly pay £8.4m, 30% of the radar's ostensible price, into a Swiss account.
  • (13) Entwistle's chances were at one stage thought to have diminished in the wake of the much-criticised BBC coverage of the Diamond Jubilee pageant, which came under his responsibility.
  • (14) Each component of the bonding agent (Syntac: Ivoclar Vivadent) was labelled with a fluorescent dye, the unfilled resin being light cured for 30 s with the composite restoration placed in one increment and light cured for 40 s. The samples were longitudinally sectioned using a slow speed diamond saw underwater, either immediately or 24 h post placement.
  • (15) Sharply escalating the sanctions regime against Tehran, the EU also froze the Iranian central bank's assets in Europe and banned gold, precious metals and diamond transactions.
  • (16) Logging, cattle farming and soy plantations are key, plus the increased construction of dams and road, and shifting patterns of farming for local people and mining (for diamonds, bauxite, manganese, iron, tin, copper, lead and gold).
  • (17) The country’s supreme court ruled that Imelda Marcos illegally acquired the items, including diamond-studded tiaras and an extremely rare 25-carat pink diamond.
  • (18) They contrast this with the proposal that infants may make the AB error because of immaturity of the frontal lobe system (Diamond; Diamond & Goldman-Rakic).
  • (19) The exposure came from the diamond cobalt discs used for polishing diamonds, which had as the hard element microdiamonds, cemented in an alloy of pure cobalt.
  • (20) Bob Diamond did not believe he received an instruction from Paul Tucker or that he gave an instruction to Jerry del Missier.

Graphite


Definition:

  • (n.) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead.

Example Sentences:

  • (1) Here we present images of polydeoxyadenylate molecules aligned in parallel, with their bases lying flat on a surface of highly oriented pyrolytic graphite and with their charged phosphodiester backbones protruding upwards.
  • (2) This is a report on a male patient of 71 years of age who had been a graphite mill worker for about 14 years.
  • (3) The concentration of gold in whole blood was determined using graphite furnace atomic absorption spectrophotometry.
  • (4) As subcritical crack velocities under cyclic loading were found to be many orders of magnitude faster than those measured under equivalent monotonic loads and to occur at typically 45% lower stress-intensity levels, cyclic fatigue in pyrolytic carbon-coated graphite is reasoned to be a vital consideration in the design and life-prediction procedures of prosthetic devices manufactured from this material.
  • (5) A 5-year-old boy had an excisional biopsy of a pigmented scleral lesion thought clinically to be a foreign body, probably graphite from a pencil.
  • (6) A membrane-free glucose sensor was made by covalent immobilization of glucose oxidase on graphite followed by adsorption of N-methyl-phenazinium ion (PMS+).
  • (7) Stearate-modified graphite paste recording electrodes were acutely or chronically implanted into the nucleus accumbens along with bipolar stimulating electrodes in the ipsilateral ventral tegmental area (VTA).
  • (8) I describe a micro-scale method for determining lead in whole blood by utilizing a graphite furnace.
  • (9) The reconstituted acid mixture is injected into the graphite tube atomizer for analysis of Cu and Cd and aspirated into the air--acetylene flame for measurement of Zn.
  • (10) A spokesman said Graphite had “received no income or interest payments, or proceeds of any kind, from its investment in City & County”.
  • (11) Tissue reactivity to carbon cloth, graphite cloth and vitreous carbon in the solid was studied in dogs.
  • (12) The mercury-graphite electrode was also checked in respect of both the plating time and the amount of analyses performed.
  • (13) Tritium retention noted in graphite tiles underscores the significance of material selection in present and future 3H-fueled fusion devices.
  • (14) The resolution of the enantiomers of three closely related benzodiazepines, temazepam, oxazepam and lorazepam, is attempted on three new column systems: cellulose triacetate, beta-cyclodextrin and the reversed-phase column porous graphitic carbon with beta-cyclodextrin as a mobile phase additive.
  • (15) For some metals the analysis can be directly achieved by means of atomisation of the biological liquid in a flame or in a graphite furnace; for other metals it is necessary a treatment of the sample to separate the metal from the rest of the matrix, which can be: calcination, microcalcination, mining.
  • (16) A new grade of graphite-isotropic, fine-grained, and of superior strength-has been produced at the Oak Ridge National Laboratory.
  • (17) We believe that the introduction of high-performance background correction such as Smith-Hieftje, delayed atomization techniques, and aerosol deposition have taken graphite furnace AAS into its third phase.
  • (18) Zinc was analyzed by flame atomic absorption spectrophotometry, and the other elements by graphite furnace atomic absorption.
  • (19) An analysis of the product of interaction of a sample of native DNA with a large pyrolytic graphite electrode in the presence of formaldehyde at approximately neutral pH did not prove changes in the secondary structure of native DNA due to its interaction with the graphite electrode.
  • (20) Alternatively, a 50-mu-l sample of blood or erythrocytes is treated with 50 mu-l of concentrated nitric acid and a 1.5-mu-l aliquot is analyzed with use of the graphite tube.