Aluminom nitride Crucible ALN Aluminom Crucible
Ngosipụta ngwaahịa
A na-emepụta AlN site na mbelata okpomọkụ nke alumina ma ọ bụ site na nitride kpọmkwem nke alumina.Ọ nwere njupụta nke 3.26 Debanyere aha & Chebere site na MarkMonitor-3, n'agbanyeghị na ọ naghị agbaze, na-emebi karịa 2500 Celsius na ikuku.A na-ejikọta ihe ahụ na covalently ma na-eguzogide sintering na-enweghị enyemaka nke ihe mgbakwunye na-emepụta mmiri mmiri.Na-emekarị, oxides dị ka Y 2 O 3 ma ọ bụ CaO na-enye ohere iji nweta singing na okpomọkụ n'etiti 1600 na 1900 Celsius.
Aluminom nitride bụ ihe seramiiki nwere ọmarịcha arụmọrụ zuru oke, enwere ike ịchọta nyocha ya kemgbe ihe karịrị otu narị afọ gara aga.Ihe mejupụtara ya bụ F. Birgeler na A. Geuhter Found na 1862, na 1877 site na JW MalletS Aluminom nitride ka emebere ya na nke mbụ, mana ọ bụghị ihe bara uru maka ihe karịrị 100 afọ, mgbe ejiri ya dị ka fatịlaịza kemịkalụ. .
N'ihi na aluminom nitride bụ ngwakọta covalent, nke nwere obere ọnụọgụ mgbasa ozi onwe ya na ebe mgbaze dị elu, ọ na-esiri ike ịmegharị.Ọ bụ na 1950s ka aluminom nitride ceramics na-emepụta nke ọma na nke mbụ ma jiri ya mee ihe dị ka ihe na-eme ka ọ bụrụ ihe na-agbaze n'ịgbaze ígwè dị ọcha, aluminum na aluminum alloy.Ebe ọ bụ na 1970s, na omimi nke nyocha, usoro nkwadebe nke aluminom nitride na-etowanye eto, na ngwa ngwa ya na-agbasawanye.Karịsịa ebe ọ bụ na ịbanye na narị afọ nke 21st, na mmepe ngwa ngwa nke teknụzụ microelectronics, igwe eletrọnịkị na akụrụngwa elektrọnik n'ebe miniaturization, dị arọ, njikọta, na ntụkwasị obi dị elu na ụzọ nrụpụta ike dị elu, ngwaọrụ ndị ọzọ siri ike nke mkpụrụ na nkwakọ ngwaahịa nke mkpofu ọkụ tinye. gaa n'ihu chọrọ elu dị elu, na-akwalite mmepe siri ike nke ụlọ ọrụ nitride aluminum.
Isi atụmatụ
AlN na-eguzogide nbibi nke ọtụtụ ọla a wụrụ awụ, ọkachasị aluminom, lithium na ọla kọpa
Ọ na-eguzogide ọtụtụ mbuze nke nnu a wụrụ awụ, gụnyere chlorides na cryolite
Igwe ọkụ dị elu nke ihe seramiiki (mgbe beryllium oxide gasịrị)
Nnukwu olu resistivity
Ike dielectric dị elu
Acid na alkali na-emebi ya
N'ụdị ntụ ntụ, ọ na-adị mfe hydrolyzed site na mmiri ma ọ bụ mmiri mmiri
Ngwa isi
1, ngwa ngwaọrụ piezoelectric
Aluminom nitride nwere ihe mgbochi dị elu, ịdị elu nke thermal conductivity (oge 8-10 nke Al2O3), yana ọnụọgụ mgbasawanye dị ala dị ka silicon, nke bụ ihe dị mma maka okpomọkụ dị elu na ngwa eletrik dị elu.
2, ihe nkwakọ ngwaahịa eletrọnịkị
Ihe ndị a na-ejikarị seramiiki eme ihe bụ beryllium oxide, alumina, aluminum nitride, wdg, nke alumina ceramic substrate nwere obere ikuku thermal, ọnụọgụ mgbasawanye ọkụ anaghị adaba na silicon;ọ bụ ezie na beryllium oxide nwere ihe ndị magburu onwe ya, ma ntụ ntụ ya na-egbu egbu nke ukwuu.
N'ime ihe ndị dị na seramiiki enwere ike iji dị ka ihe mkpụrụ, silicon nitride seramiiki nwere ike na-ehulata nke ọma, ezigbo nguzogide na-eyi, bụ ihe seramiiki nwere arụmọrụ kachasị mma zuru oke, yana ọnụọgụ mgbasawanye nke kacha nta.Aluminom nitride ceramics nwere ihe nrụpụta ọkụ dị elu, ezigbo nguzogide mmetụta thermal, ma ka nwere ezigbo ihe eji arụ ọrụ na oke okpomọkụ.N'ihe gbasara arụmọrụ, aluminom nitride na silicon nitride bụ ihe kachasị mma ugbu a maka ngwongwo nkwakọ ngwaahịa eletrọnịkị, mana ha nwekwara nsogbu nkịtị bụ na ọnụahịa ahụ dị oke elu.
3, ma tinye ya na ihe ndị na-egbuke egbuke
Oke kachasị obosara nke oghere bandgap kpọmkwem nke aluminom nitride (AlN) bụ 6.2 eV, nke nwere arụmọrụ ntụgharị fotoelectric dị elu ma e jiri ya tụnyere semiconductor bandgap na-apụtaghị ìhè.AlN Dị ka ọkụ na-acha anụnụ anụnụ dị mkpa na ihe na-enye ọkụ UV, a na-etinye ya na UV / miri emi UV ọkụ na-emitting diode, UV laser diode na UV detector.Ọzọkwa, AlN nwere ike ịmepụta ihe ngwọta siri ike na-aga n'ihu na otu III nitrides dị ka GaN na InN, yana ternary ma ọ bụ quaternary alloy nwere ike na-agbanwegharị ọdịiche nke band ya site na anya ruo n'ìgwè ultraviolet miri emi, na-eme ka ọ bụrụ ihe dị mkpa na-arụ ọrụ luminescent.
4, nke a na-etinye na ihe ndị na-emepụta ihe
Kristal AlN bụ ihe dị mma maka GaN, AlGaN yana AlN epitaxial ihe.E jiri ya tụnyere sapphire ma ọ bụ mkpụrụ SiC, AlN nwere egwuregwu ga-ekpo ọkụ karị na GaN, nwere ndakọrịta kemịkalụ dị elu, yana obere nrụgide n'etiti mkpụrụ na oyi akwa epitaxial.Ya mere, mgbe a na-eji AlN kristal dị ka mkpụrụ nke GaN epitaxial substrate, ọ nwere ike belata njupụta ntụpọ dị na ngwaọrụ ahụ nke ọma, mee ka arụmọrụ nke ngwaọrụ ahụ dịkwuo mma, ma nwee atụmanya ngwa dị mma na nkwadebe nke okpomọkụ dị elu, ugboro ugboro na ike eletrik dị elu. ngwaọrụ.
Tụkwasị na nke ahụ, ihe ntanetị nke AlGaN epitaxial substrate na AlN crystal dị ka akụkụ aluminom (Al) dị elu nwekwara ike ibelata njupụta nrụrụ dị na oyi akwa epitaxial nitride, ma melite arụmọrụ na ndụ ọrụ nke ngwaọrụ semiconductor nitride.Achọpụtala ihe nchọpụta kpuru ụbọchị dị elu nke dabere na AlGaN nke ọma.
5, eji seramiki na ihe ntughari
Enwere ike itinye aluminom nitride na sintering nke seramiiki nhazi, alumini nitride ceramics nke a kwadebere, ọ bụghị naanị ihe eji arụ ọrụ dị mma, ike mpịachi dị elu karịa Al2O3 na BeO ceramics, ike siri ike, kamakwa oke okpomọkụ na nguzogide corrosion.N'iji AlN ceramic heat resistance na corrosion resistance, enwere ike iji ya mee akụkụ dị elu na-eguzogide corrosion dị ka crucible na Al evaporation plate.Na mgbakwunye, ceramik AlN dị ọcha bụ kristal transperent enweghị agba, nwere ọmarịcha ngwa anya, enwere ike iji ya dị ka windo infrared dị elu yana mkpuchi mkpuchi okpomọkụ maka ceramik transperent na-arụpụta ngwaọrụ eletrọnịkị.
6. Ngwakọta
Epoxy resin / AlN composite material, dị ka ihe nkwakọ ngwaahịa, chọrọ ezigbo thermal conductivity na ike mkpofu okpomọkụ, na ihe a chọrọ na-esiwanye ike.Dị ka ihe polymer nke nwere ezigbo kemịkalụ na nkwụsi ike n'ibu, epoxy resin dị mfe ịgwọ ọrịa, na-enwe obere shrinkage ọnụego, ma thermal conductivity adịghị elu.Site n'ịgbakwunye AlN nanoparticles nwere ezigbo ọkụ ọkụ na resin epoxy, enwere ike imeziwanye conductivity na ike nke ọma.
