Boron carbide est a nigro crystallum cum metallicis lumine, etiam notum ut nigrum ungue adamantino, quod pertinet ad inorganicis non-metallicis materiae. At present, everyone is familiar with the material of boron carbide, which may be due to the application of bulletproof armor, because it has the lowest density among ceramic materials, has the advantages of high elastic modulus and high hardness, and can achieve good use of micro-fracture to absorb projectiles. Effectus industria, cum observatio ad onus ut low quam maxime. Sed quidem, boron carbide habet multa alia unica proprietatibus, quae potest facere ludere an maximus munus in abrasives, refracty materiae, nuclei industria, aerospace et aliis agris.
ProprietatibusCARBIDO
In terms of physical properties, the hardness of boron carbide is only after diamond and cubic boron nitride, and it can still maintain high strength at high temperatures, which can be used as an ideal high-temperature wear-resistant material; Et densitas Boron carbide est valde parvum (theoretical densitas est solum 2.52 g / cm3), levior quam Ordinarius Ceramic materiae, et potest esse in aerospace agro; Boron carbide habet fortis neutron effusio facultatem, bonum scelerisque stabilitatem et liquescens punctum MMCDL ° C, ita etiam late in nuclei industria. Et neutron effusio facultatem de neutron potest esse ulterius per addendo B elementa; Boron carbide materiae cum specifica morphologia et structuram etiam habere specialem photoelectric possessiones; In addition, boron carbide habet altum liquescens punctum, princeps elastica modulus, humilis expansion coefficientem et bonum his commoda facere a potential applicationem materiam in multis ut metallurgy, eget industria, machinatione, aerospace et industria, machinatione, aerospace et industria, machinatione, aerospace et industria. Exempli gratia, corrosio repugnans et gerunt, repugnant partes, faciens bulletproof armis, reactor imperium virgis et thermelectric elementa, etc.
In terms of chemical proprietatibus, boron carbide non agere cum acida, alkalis et maxime inorganicis componit ad locus temperatus et vix reagit cum oxygeni et halogen in locus temperatus, et eget proprietatibus sunt stabula. In addition, boron carbide powder is activated by halogen as a steel boriding agent, and boron is infiltrated on the surface of steel to form an iron boride film, thereby enhancing the strength and wear resistance of the material, and its chemical properties are excellent.
Omnes scio quod de ratione materiali determinat usum, ita in quo applications non boron carbide pulveris habere praestantes perficientur?Et fabrum de R & D centrumTech Urbanmines.Co., Ltd.
ApplicationemCARBIDO
I. Boron Carbide est usus ut Polising Abrasive
Et applicationem de boron carbide sicut per abrasive est maxime propter molere et poliendi sapphirus. Inter Superhard materiae, duritiam Boron carbide est melius quam de Aluminium cadmiae et Silicon carbide, secundo adamantino et cubica boron Nitride. Sapphire est maxime specimen subiecti materiam pro Semiconductor Gan / II o3 lux-emittens Diodes (LEDs), magna-scale integrated circuits SOI et Sos et superconducting Nanostuctructure films. Et lenitate superficies valde altum et esse ultra-lenis non gradum damnum. Ob alte fortitudinem et altum duritiam sapphirini crystal (Mohs duritia IX), quod est magna difficultates ad dispensando conatibus.
Ex perspective de materiae et molere, optimum materiae ad dispensando et stridor sapphirus crystallis sunt Saccharum Diamond, Boron Carbide, Silicon Carbide et Silicon Dioxide. In dura artificialis adamantis est excelsum (mohs duritiem X), cum molere sapphyrus lagana, erit scalpere superficiem, afficiunt lumen transmittance de lagae et pretium est pretiosa; Post secans Silicon Carbide, asperitas Rs solet excelsum et planities pauper; Tamen, quod duritiam Silicae non sufficit (mohs duritiem VII), et molentes pauper est, quod tempus-consumens et labor-intensive in molendo processus. Therefore, boron carbide abrasive (Mohs hardness 9.3) has become the most ideal material for processing and grinding sapphire crystals, and has excellent performance in double-sided grinding of sapphire wafers and back thinning and polishing of sapphire-based LED epitaxial wafers.
Est dignum quod cum boron carbide est supra DC ° C, superficies erit oxidized in B2o3 film, quod erit ad quodammodo, ita non idoneam ad aridam, tantum idoneam adolescit in arido applications, tantum idoneam adolescens liquido tere. Sed hoc proprietas prohibet B4C ex oxidized longius, faciens est unicum commoda in applicationem in refractória materiae.
II. Applicationem in Refracty Materials
Boron carbide habet characteres anti-oxidatio et caliditas resistentia. Est plerumque usus est ut provectus informibus et incredibilem refractórium materiae et late in variis agris metallicy, ut ferro stoves et furniture.
Cum necessitatibus de industria salvis et consummatio reductionem in ferrum et ferro industria et Smelting de low-carbon ferro et ultra-humilis carbo carbon, et inquisitionis et progressionem de low-carbon magis et magis operam a domesticis et aliena industries magis et magis operam a domesticis et aliena industries magis et magis operam a domesticis et aliena industries magis operam et in excellentioribus et aliena industries magis et magis operam a domesticis et aliena industries magis et magis operam a domesticis et aliena industries magis et magis operam a domesticis et aliena industries magis et magis operam a domesticis et externis industries magis et magis operam ex domesticis et alienum industries magis et magis operam ex domesticis et alienum industries magis et magis operam a domesticis et aliena industries magis ac magis operam a domesticis et alienum industries magis operam et ad excellentiam et aliena industries magis et magis operam a domesticis et aliena industries magis aciem. In praesenti, in perficientur de low-carbonis magnesia-ipsum lateres est plerumque melius per melnesia est religata ipsum structuram, optimizing matrix structuram magnesia, ipsum lateres et addendo summus efficientiam antioxidants. Inter eos, graphitized ipsum composito ex industriae-gradus boron carbide et partim graphitized ipsum nigrum est usus. Nigrum compositum pulverem, usus est sicut carbonis fons et antioxidant pro low-ipsum Magnesia, ipsum lateres, habet effectum bonum praecessi.
Quia boron carbide et mollire ad quandam altum temperatus potest coniuncta superficiei aliae materiales. Etiam si productum est densified, b2o3 cadmiae amet super superficiem potest formare quaedam tutela et ludere anti-oxidation munus. At the same time, because the columnar crystals generated by the reaction are distributed in the matrix and gaps of the refractory material, the porosity is reduced, the medium temperature strength is improved, and the volume of the generated crystals expands, which can heal volume shrinkage and reduce cracks.
III. Bulletproof materiae ad augendae National Defensionis
Ob alte duritia, princeps vires, parvum specifica gravitas, et excelsum campester of ballistic resistentia, boron carbide est maxime in linea cum flecte de lumine Bulletproof materiae. Est optimum bulletproof materia ad tutela aircraft, vehicles, armis et humana corpora; Currently:Quidam regionibusProposed humilis-sumptus boron carbide anti-ballistic arma investigationis, aiming ad promovere magna-scale usum boron carbide anti-ballistic armis in defensionem industria.
IV. Applicationem in nuclei industria
Boron carbide habet altum neutron effusio crucem-sectione et wide neutron industria spectro, et internationally agnita est optimum neutron absorber pro nuclei industria. Inter eos, Thermal sectionem Boron-X isotope est ut altum quod CCCXLVII × 10-24 CM2, secundo tantum ad paucos elementa ut Gadolinium, Samarium, et Cadmium, et est efficiens scelerisque neutron absorber. In addition, boron carbide est dives in resources, corrosio-repugnant, bonum scelerisque stabilitatem, non producendum radioactive isotopes, et habet humilis secundarium radioque materiae et protegens materiae in nuclei reactores.
Exempli gratia, in nuclei industria, in summus temperatus Gas, refrigeratum reactor utitur boron absorbendo pila shutdown ratio ut secunda shutdown ratio. In casu accidentis, cum primum shutdown ratio deficit, secundo shutdown ratio utitur numerus boron carbide pellets liberum cadere in channel de reflective iacuit de reactor et cognoscere, in quo absorbuit et sciendum est globus, in quo est Ballbide Ball, in quibus Ball est Graphite Ball continet Boron in reactor et in Graphite Ball continens Boron in Ball est Graphite Ball continet Boron carbide. Pelagus munus boron carbide core in caliditas Gas, refrigeratum reactor est control virtute et salus reactor. In carbo carbonis laterem non impraegnata cum boron carbide neutron absorbing materia, quae potest reducere neutron irradiatio de reactor pressura vas.
At present, boride materials for nuclear reactors mainly include the following materials: boron carbide (control rods, shielding rods), boric acid (moderator, coolant), boron steel (control rods and storage materials for nuclear fuel and nuclear waste), boron Europium (core burnable poison material), etc.