aluminium magnicium boride

aluminium magnicium boride yaa yaa, jise bolchal kii bhasha mein baam key roop mein jaanaa jaataa haye, aluminium, magnicium aur boron kaa ack rasayanik yaugik haye. jabaki iska nammatra kaa sootra विस्तार। haye, rasayanik sanrachana al0.75mg0.75b14 key karib haye. yeh ack cheeni dhaatu mishra dhaatu haye joe pahanane key liye atyadhik pratirodhi haye aur isamen sliding gharshan kaa ack behad cumm gunank haye, joe gair-snehak mein 0.04 aur snehak snehak yaugikon mein 0.02 key record moolya taka pahunchata haye. pahali baar 1970 mein report kiya gayaa, baam mein prati ikai koshika chaar icosahedral icosahedral ikaaiyon key saath ack orthorombic sanrachana haye. iss atee-dhaar samagri mein ispat aur concreet jaisi anya vyaapak roop seey upayog kii jaane vaali samagriyon kii tulanaa mein taapiya vistaar kaa gunank hotaa haye.
sanshleshan.
baam pouder kaa vyaavsaayik roop seey utpaadan mool boron (nimn shreni key kaaran isamen magnicium hotaa haye) aur aluminium key lagbhag stoichiometric mishran koo 900 degree celsius seey 1500 degree celsius key tapman parr kuchh ghanton key liye germ karke kiya jaataa haye. isake baad nakali charanon koo germ hydrochloric acid mein ghol diyaa jaataa haye. pratikriya koo aasaan banaane aur utpaad koo adhik sajaatiya banaane key liye, praarambhik mishran koo uchch-oorjaa vaali ball mill mein sansaadhit kiya jaa sakata haye. dhaatu key pouder key okseekaran seey bachane key liye sabhi poorv upchaar sookhe, nishkriya vatavaran mein kiye jaate hain.
baam film koo silicon yaa dhatuon parr spandit lazer nikshepan dwara lepit kiya jaa sakata haye, lakshya key roop mein ell. aim. jee. bee. 14 pouder kaa upayog karke, jabaki thoke namoone pouder koo cintering karke praapt kiye jaate hain.
baam mein aamtaur parr ashuddh tatvon kii chhoti matra hoti haye (ee.jee.oxygen aur loha) joe taiyari key dauran samagri mein pravesh karate hain. aisaa maanaa jaataa haye kii lohe kii upasthiti (aksar mill kii shishiyon aur media seey malabe key roop mein pesh kiya jaataa haye) ack cintering sahaayata key roop mein kaary karati haye. baam koo silicon, phosphorus, carbon, titanium diaboride tib2), aluminium nitride (ln), titanium carbide (tick) yaa boron nitride (bn) key saath mishra dhaatu banaaya jaa sakata haye.
guna.
baam mein gharshan kaa sabse cumm gyaat gair-snehak gunank (0.04) haye joe sambhavatah swa-snehan key kaaran haye.
sanrachana.
adhikansh atee-kathor samagriyon mein saral, uchch-samamit chrystal sanrachanaaen hoti hain, jaise.jee., diamond cubic yaa jink mishran. haalaanki, baam mein prati ikai koshika 64 parmaanuon key saath ack jatil, cumm samamit chrystal sanrachana haye. ikai koshika orthorombic haye aur isaki sabse pramukh visheshta chaar boron yukt icosahedra haye. pratyek icosahedron mein 12 boron paramanu hotey hain. aathh aur boron paramanu icosahedra koo ikai koshika key anya tatvon seey jodate hain. jaali mein dhaatu sthalon kii adhibhog kshamata ack seey cumm hoti haye, aur iss prakaar, jabaki samagri koo aamtaur parr sootra विस्तार। key saath pahachaana jaataa haye, isaki rasayanik sanrachana al0.75mg0.75b14 key karib hoti haye. iss tarah kii gair-stoichiometry borides key liye aam haye (boron-samriddh dhaatu borides aur boron carbide kii chrystal sanrachana dekhein). baam key ikai koshika mapdand "a" = 1.0313 nm, "b" = 0.8115 nm, "c" = 0.5848 nm, "z" = 4 (prati ikai koshika chaar sanrachana ikaaiyaan), antariksh samooh "imma", nashpati prateek oi68, ghanatva 2.59 g/cm3 hain. pighalane kaa bindu lagbhag 2000°C haye.
optoelectronic.
baam mein lagbhag 1.5 ee. vee. kaa bandgap haye. upa-bandgap urjaaon mein mahatvapurna avashoshan dekhaa jaataa haye aur dhaatu parmaanuon key liye jimmedaar haye. vidyut pratirodhakta namoone kii shuddhata parr nirbhar karati haye aur lagbhag 104 omsaki. aim. haye. cbec gunank apekshaakrit uchch haye, − 5.4 aur −8 mv/key key beach. yeh guna dhaatu parmaanuon seey boron icosahedra mein electron hastaantaran seey utpann hotaa haye aur thermoelectric anuprayogon key liye anukool haye.
kathorta aur asthibhang kathorta.
baam pouder kii sookshmata 32-35 gPA haye. boron samriddh titanium boride key saath mishra dhaatu seey ise 45 jee. pee. aeye. taka badhaaya jaa sakata haye, asthibhang kii kathorta koo tib 2 key saath yaa ardh-anakar baam film jamaa karke badhaaya jaa sakata haye. baam mein alan yaa tick key judane seey isaki kathorta cumm hoe jaati haye. paribhasha key anusaar, 40 jee. pee. aeye. seey adhik kathorta moolya baam koo ack atee-kathor samagri banaata haye. है। yaugik mein, adhikatam kathorta aur kathorta ~ 60 volt parr praapt kii jaati jaati kaa%. kathorta haani kii keemat parr aur samagri koo 70-80% taka badhaakar pahanane kii darr mein sudhaar kiya jaataa haye. aur yojak swayam ack pahanane-pratirodhi samagri haye jisamen 28-35 gPA kii kathorta hoti haye.
taapiya vistaar.
विस्तार। key liye taapiya vistaar gunank (tec, jise taapiya vistaar, coat key gunank key roop mein bhee jaanaa jaataa haye) koo delatometry dwara 9 key-1 key roop mein aur synchrotron vikiran kaa upayog karke uchch tapman aiks-ray vivartan dwara maapa gayaa thaa. yeh moolya ispat, titanium aur concreet jaisi vyaapak roop seey upayog kii jaane vaali samagriyon key coat key kaafee karib haye. ell. aim. jee. bee. 14 key liye report kiye gaye kathorta moolyon aur pahanane pratirodhi coating key roop mein upayog kii jaa rahee samagri key aadhar parr, ell. aim. jee. bee. 14 key coat kaa upayog coating anuprayog vidhiyon aur seva mein ack baar bhaagon key pradarshan koo nirdhaarit karane mein kiya jaa sakata haye.
gharshan.
baam aur aur tib2 kaa 70 aayatan pratishat) key ack yaugik mein gharshan gunank key sabse cumm moolyon mein seey ack hotaa haye, joe ack heere kii noke (see. aff.) dwara sookhi kharonch mein 0.04-0.05 key barabar hotaa haye. 0.04 teflon key liye) aur paani-glycol-adharit snehak mein 0.02 taka cumm hoe jaataa haye.
anuprayog.
baam vyaavsaayik roop seey upalabdh haye aur sambhaavit anuprayogon key liye iska adhyayan kiya jaa rhaa haye. udaaharan key liye, pampon parr piston, muhar aur blade koo bhaagon key beach gharshan koo cumm karane aur pahanane key pratirodh koo badhaane key liye baam yaa baam + tib 2 key saath lepit kiya jaa sakata haye. gharshan mein kamee seey oorjaa kaa upayog cumm hoe jaayega. baam koo kaatane key aujaaron parr bhee lepit kiya jaa sakata haye. cumm gharshan kissy vastu koo kaatane key liye aavashyak bull koo cumm curr dega, upkaran jeevan kaa vistaar karega, aur sambhavatah kaatane kii gati koo badhaane kii anumati dega. kewal 2-3 micrometer motee paraten dakshata mein sudhaar karane aur kaatane key upkaranon mein ghisaav koo cumm karane key liye paaee gaee hain.

