Aluminium Nitride Yabitswe ALN Aluminium Yabitswe
Kwerekana ibicuruzwa
AlN Ihinduranya no kugabanya ubushyuhe bwa alumina cyangwa na nitride itaziguye ya alumina.Ifite ubucucike bwa 3.26 Yiyandikishije & Irinzwe na MarkMonitor-3, nubwo idashonga, ibora hejuru ya 2500 ° C mu kirere.Ibikoresho bifatanyirijwe hamwe kandi birwanya gucumura nta mfashanyo yongeyeho.Mubisanzwe, okiside nka Y 2 O 3 cyangwa CaO ituma habaho gucumura mubushyuhe buri hagati ya 1600 na 1900 ° C.
Aluminium nitride ni ceramic nibikoresho byiza byuzuye, kandi ubushakashatsi bwayo burashobora kuboneka mumyaka irenga ijana ishize.Igizwe na F. Birgeler na A. Geuhter Yabonetse mu 1862, naho mu 1877 na JW MalletS Nitride ya Aluminium yashizwemo bwa mbere, ariko ntabwo yakoreshejwe mu myaka irenga 100, igihe yakoreshwaga nk'ifumbire mvaruganda. .
Kuberako nitride ya aluminium ari covalent compound, hamwe na coefficient ntoya yo kwikwirakwiza no gushonga cyane, biragoye gucumura.Mu myaka ya za 1950, ni bwo ceramike ya aluminium nitride yakozwe neza ku nshuro ya mbere kandi ikoreshwa nk'ibikoresho bivunika mu gushonga ibyuma bisukuye, aluminium na aluminiyumu.Kuva mu myaka ya za 70, hamwe n’ubushakashatsi bwimbitse, gahunda yo gutegura nitride ya aluminium yarushijeho gukura, kandi uburyo bwo kuyikoresha bwagutse.Cyane cyane kuva yinjira mu kinyejana cya 21, hamwe niterambere ryihuse ryikoranabuhanga rya mikorobe, imashini ya elegitoronike nibikoresho bya elegitoronike biganisha kuri miniaturizasiya, yoroheje, kwishyira hamwe, hamwe no kwizerwa gukomeye hamwe n’icyerekezo kinini cy’amashanyarazi, ibikoresho byinshi kandi bigoye bya substrate hamwe nugupakira ibikoresho byo gukwirakwiza ubushyuhe byashyizwe tera imbere ibisabwa hejuru, uzamure iterambere ryiterambere ryinganda za nitride ya aluminium.
Ibyingenzi
AlN Kurwanya isuri yibyuma byinshi byashongeshejwe, cyane cyane aluminium, lithium n'umuringa
Irwanya isuri nyinshi yumunyu ushongeshejwe, harimo chloride na cryolite
Ubushyuhe bukabije bwibikoresho bya ceramic (nyuma ya okiside ya beryllium)
Kurwanya amajwi menshi
Imbaraga za dielectric
Irandurwa na aside na alkali
Mu ifu yifu, iroroshye hydrolyz namazi cyangwa ubuhehere
Porogaramu nyamukuru
1, porogaramu ya piezoelectric
Nitride ya aluminiyumu ifite imbaraga nyinshi zo guhangana n’ubushyuhe bwinshi (inshuro 8-10 za Al2O3), hamwe na coefficient yo kwaguka gake isa na silikoni, ni ibikoresho byiza byubushyuhe bwo hejuru hamwe nibikoresho bya elegitoroniki bifite ingufu nyinshi.
2, ibikoresho bya elegitoroniki bipakira ibikoresho
Ibikoresho bisanzwe bya ceramic substrate ni beryllium oxyde, alumina, nitride ya aluminium, nibindi, aho substrate ya alumina ceramic ifite ubushyuhe buke bwumuriro, coefficente yo kwagura ubushyuhe ntabwo ihuye na silicon;nubwo okiside ya beryllium ifite ibintu byiza cyane, ariko ifu yacyo ni uburozi bukabije.
Mubikoresho bya ceramic bihari bishobora gukoreshwa nkibikoresho bya substrate, ceramic nitride ceramic ifite imbaraga zo kugunama cyane, kwihanganira kwambara neza, ni ibikoresho bya ceramique bifite imikorere myiza yubukanishi, hamwe na coefficient ntoya yo kwagura ubushyuhe.Ceramics ya aluminium nitride ifite ubushyuhe bwinshi, irwanya ingaruka ziterwa nubushyuhe, kandi iracyafite imiterere yubukanishi mubushyuhe bwinshi.Kubijyanye n'imikorere, nitride ya aluminium na silicon nitride kuri ubu ni ibikoresho bibereye ibikoresho byo gupakira ibikoresho bya elegitoroniki, ariko kandi bafite ikibazo rusange ni uko igiciro kiri hejuru cyane.
3, kandi bikoreshwa mubikoresho bya luminescent
Ubugari ntarengwa bwa bande ya burebure ya aluminium nitride (AlN) ni 6.2 eV, ifite imikorere ihanitse yo guhinduranya amashanyarazi ugereranije na semiconductor itaziguye.AlN Nkumucyo wingenzi wubururu hamwe nibikoresho bya UV bitanga urumuri, bikoreshwa kuri UV / ndende ya UV itanga urumuri, UV laser diode na UV detector.Byongeye kandi, AlN irashobora gukora ibisubizo bihamye hamwe na nitride ya III nka GaN na InN, hamwe na ternary cyangwa quaternary alloy irashobora guhora ihindura icyuho cyayo kuva igaragara kugeza kuri ultraviolet yimbitse, bigatuma iba ibikoresho byingenzi bikora cyane.
4, zikoreshwa mubikoresho bya substrate
AlN kristu ni substrate nziza kuri GaN, AlGaN kimwe nibikoresho bya AlN.Ugereranije na safiro cyangwa SiC substrate, AlN ifite ubushyuhe bwinshi hamwe na GaN, ifite imiti ihuza cyane, hamwe nihungabana rito hagati ya substrate na epitaxial layer.Kubwibyo, mugihe AlN kristal ikoreshwa nka substrate ya GaN epitaxial, irashobora kugabanya cyane ubwinshi bwinenge mubikoresho, kunoza imikorere yigikoresho, kandi ikagira ibyifuzo byiza byo gutegura mugutegura ubushyuhe bwinshi, inshuro nyinshi hamwe nimbaraga za elegitoroniki ibikoresho.
Byongeye kandi, ibikoresho bya epitaxial ya AlGaN hamwe na kristu ya AlN nka aluminiyumu ndende (Al) irashobora kandi kugabanya neza ubucucike bwinenge muri nitride epitaxial, kandi bikazamura cyane imikorere nubuzima bwa serivisi ya nitride semiconductor.Ibyiza-byiza bya buri munsi-buhumyi bishingiye kuri AlGaN byakoreshejwe neza.
5, ikoreshwa mububumbyi nibikoresho byangiritse
Nitride ya aluminiyumu irashobora gukoreshwa mugucumura ceramika yububiko, yateguwe na aluminium nitride ceramics, ntabwo ari ibikoresho byiza bya mashini gusa, imbaraga zo kugundura ziri hejuru yubutaka bwa Al2O3 na BeO, ubukana bwinshi, ariko nubushyuhe bwo hejuru hamwe no kurwanya ruswa.Ukoresheje ubushyuhe bwa AlN ceramic hamwe no kurwanya ruswa, birashobora gukoreshwa mugukora ubushyuhe bwo hejuru bwangirika bwangirika nkibisahani byingenzi na Al evaporation plate.Byongeye kandi, Ceramics nziza ya AlN ni ibara ritagira amabara ya kirisiti, ifite ibintu byiza bya optique, kandi irashobora gukoreshwa nkubushyuhe bwo hejuru bwa infragre idirishya hamwe nubushyuhe bwo guhangana nubushyuhe bwibumba ryibumba ryibikoresho bya elegitoroniki.
6. Ibigize
Epoxy resin / AlN igizwe nibikoresho, nkibikoresho byo gupakira, bisaba gutwara neza ubushyuhe nubushobozi bwo gukwirakwiza ubushyuhe, kandi iki cyifuzo kiragenda gikomera.Nibikoresho bya polymer bifite imiterere myiza yimiti hamwe nubukanishi, epoxy resin iroroshye gukira, hamwe nigabanuka rito, ariko ubushyuhe bwumuriro ntabwo buri hejuru.Mugushyiramo AlN nanoparticles hamwe nubushuhe buhebuje bwumuriro kuri epoxy resin, ubushyuhe bwumuriro nimbaraga birashobora kunozwa neza.
