Aluminom nitride (AlN) bụ nke mbụ arụpụtara na 1877, mana ngwa nwere ike na microelectronics akwaliteghị mmepe nke ihe dị oke mma, nke nwere ike ịzụ ahịa ruo etiti 1980s.
AIN bụ aluminom nitrate ụdị. Aluminom nitride dị iche na nitrate aluminom na ọ bụ ngwakọta nitrogen nke nwere ọnọdụ oxidation kpọmkwem nke -3, ebe nitrate na-ezo aka na ester ọ bụla ma ọ bụ nnu nke nitric acid. Nhazi kristal nke ihe a bụ wurtzite hexagonal.
Njikọ nke AIN
A na-emepụta AlN site na mbelata carbothermal nke alumina ma ọ bụ nitridation nke aluminom. Ọ nwere njupụta nke 3.33 g/cm3 na, n'agbanyeghị na ọ naghị agbaze, ọ na-ekewa na okpomọkụ karịa 2500 ° C yana nrụgide ikuku. Na-enweghị enyemaka nke ihe mgbakwunye mmiri na-akpụ, ihe a na-ejikọta ya na covalently na-eguzogide ọgwụ. Dịka, oxides dị ka Y2O3 ma ọ bụ CaO na-enye ohere ịmegharị na okpomọkụ n'etiti 1600 na 1900 degrees Celsius.
Enwere ike imepụta akụkụ nke aluminom nitride site n'ụdị dị iche iche, gụnyere ịpị mmiri isostatic oyi, ịkpụzi injection seramiiki, ịkpụzi nrịbama dị ala, nkedo teepu, nrụpụta ziri ezi, na ịpị nkụ.
Atụmatụ igodo
AlN adịghị egbochi ọtụtụ ọla ndị a wụrụ awụ, gụnyere aluminom, lithium, na ọla kọpa. Ọ bụ ihe na-agaghị ekwe omume nye ọtụtụ nnu a wụrụ awụ, gụnyere chlorides na cryolite.
Aluminom nitride nwere ikike ikuku dị elu (170 W / mk, 200 W / mk, na 230 W / mk) yana nnukwu resistivity na ike dielectric.
Ọ na-adaba na hydrolysis n'ụdị ntụ ntụ mgbe ekpughere ya na mmiri ma ọ bụ iru mmiri. Ọzọkwa, acids na alkalis na-awakpo aluminom nitride.
Ihe a bụ ihe mkpuchi maka ọkụ eletrik. Doping na-akwalite conductivity eletrik nke ihe. AIN na-egosiputa akụrụngwa piezoelectric.
Ngwa
Microelectronics
Ihe kachasị dị ịrịba ama nke AlN bụ ikuku okpomọkụ dị elu, nke bụ nke abụọ na beryllium n'etiti ihe seramiiki. N'ebe okpomọkụ dị n'okpuru 200 degrees Celsius, okpomọkụ ya karịrị nke ọla kọpa. Nchikota a nke elu conductivity, olu resistivity, na dielectric ike na-enyere ya aka dị ka ihe ntinye na nkwakọ ngwaahịa maka mgbakọ microelectronic dị elu ma ọ bụ njupụta dị elu. Mkpa ikpochapụ okpomọkụ sitere na mfu ohmic na-eme ka ihe ndị ahụ dị n'ime oke okpomọkụ ha na-arụ ọrụ bụ otu n'ime ihe na-egbochi njupụta nke nkwakọ ngwaahịa eletrọnịkị. Mgbochi AlN na-enye ntụ oyi dị irè karịa nke a na-emekarị na seramiiki ndị ọzọ, nke mere a na-eji ha dị ka ndị na-ebu mgbawa na ikpo ọkụ.
Aluminom nitride na-achọta ngwa azụmahịa zuru ebe niile na nzacha RF maka ngwaọrụ nkwukọrịta mkpanaka. Otu oyi akwa nke nitride aluminom dị n'etiti akwa ọla abụọ. Ngwa ndị a na-ahụkarị na mpaghara azụmahịa gụnyere ihe mkpuchi ọkụ na ihe njikwa okpomọkụ na lasers, chiplets, collets, insulators eletriki, mgbanaka mgbanaka na ngwa nhazi semiconductor, na nkwakọ ngwaahịa ngwa ngwa ngwa.
Ngwa ndị ọzọ
N'ihi akwụ ụgwọ nke AlN, ngwa ya ejedebere na mpaghara ụgbọ elu ndị agha na ụgbọ njem. Otú ọ dị, a mụọla ihe a nke ọma ma jiri ya mee ihe n'ụdị dị iche iche. Ngwongwo ya bara uru na-eme ka ọ dị mma maka ọtụtụ ngwa mmepụta ihe dị mkpa.
Ngwa mmepụta ihe nke AlN na-agụnye ihe mgbagwoju anya maka ijikwa ọla mgbaze na-eme ihe ike yana sistemu mgbanwe okpomọkụ dị mma.
A na-eji ihe a na-ewu crucibles maka uto nke kristal gallium arsenide ma na-ejikwa ya na mmepụta ígwè na semiconductor.
Ihe ndị ọzọ a na-atụ aro maka aluminom nitride gụnyere dị ka ihe mmetụta kemịkalụ maka gas na-egbu egbu. Iji AIN nanotubes mepụta nanotubes nke nwere otu akụkụ maka ojiji na ngwaọrụ ndị a bụ isiokwu nyocha. N'ime afọ iri abụọ gara aga, a nyochawokwa diodes na-enye ọkụ nke na-arụ ọrụ na ultraviolet spectrum. Atụlela ngwa nke ihe nkiri dị gịrịgịrị AIN n'ime ihe mmetụta ebili mmiri elu.
