Folasaga ile Aluminium Nitride Ceramics
mama mama alumini nitride (AlN) ose oloa sima maualuga fa'atinoga ua maua ai le fa'ailoaga tele mo lona fa'amama fa'amama mata'ina., insulation eletise, ma le saogalemu o masini i le maualuga o le vevela. Faatasi ai ma se fausaga tioata wurtzite hexagonal, AlN o lo'o fa'aalia se tu'ufa'atasiga tu'ufa'atasia o meatotino e avea ai ma se tasi o mea e sili ona lelei mo le fa'aogaina i masini fa'aeletoroni, optoelectronics, vaega malosi, ma siosiomaga maualuga-vevela. O lona malosi e fa'amama lelei ai le vevela a'o fa'atumauina tulaga fa'atumauina le malosi o le dielectric AlN e fai ma filifiliga fa'apitoa i mea'ai sima masani e pei o le alumina ma le beryllium oxide.. O lenei tusitusiga e suʻesuʻeina uiga faʻavae o le alumini nitride ceramics, va'ava'ai i ta'iala o le gaosiga, ma fa'amanino ana galuega taua ile vaega fa'atekonolosi fa'atekinolosi.
(Aluminium Nitride Ceramics)
Crystal Framework ma Vaega Fa'avae
O le faʻatinoga o le mamafa o le alumini nitride e avea o se mea faʻapipiʻi e tele lava ina faʻatonuina e lona fausaga tioata ma fale faʻapitoa.. AlN e fa'aogaina se lattice-ituaiga wurtzite e faia i isi alumini ma ninita atoms, lea e fesoasoani i lona conductivity vevela maualuga– masani e sili atu 180 W/(m · K), fa'atasi ai ma nisi fa'ata'ita'iga mama maualuga ua ausia 320 W/(m · K). O lenei tau e matua'i sili atu nai lo isi mea e masani ona fa'aaogaina o oloa sima, e aofia ai le alumina (~ 24 W/(m · K) )ma silikoni carbide (~ 90 W/(m · K)).
E faaopoopo atu i lona faatinoga vevela, AlN o lo'o iai se va'a lautele o fa'ata'amilo 6.2 eV, e i'u ai i fale fa'amama eletise lelei e o'o lava ile vevela. E fa'apea fo'i e fa'aalia ai le maualalo o le atina'eina o le vevela (CTE ≈ 4.5 × 10 ⁻⁶/ K), lea e fetaui lelei ma le silikoni ma le gallium arsenide, avea ma suti e sili ona lelei mo le afifiina o oloa gaosi semiconductor. E lē gata i lea, AlN o lo'o fa'aalia le maualuga ole kemikolo ma le tetee i u'amea liusuavai, fa'aleleia atili lona talafeagai mo si'osi'omaga gaogao. O nei vaega fefiloi ua fa'atūina ai le AlN e avea o se fa'amoemoe ta'uta'ua mo so'oga fa'akomepiuta malosi-maualuga ma faiga fa'avevela.
Fa'atekonolosi Gaosi ma Sintering
O le faia o nitride porcelains alumini mama mama maualuga e manaʻomia ai le faʻapipiʻiina saʻo o le paʻu ma metotia sintering e faʻataunuʻu ai microstructures mafiafia ma ni mea filogia laʻititi.. Ona o lona natura fusifusia covalent, AlN e le fa'apipi'i vave e ala i le fa'amama fa'amaua'i e leai se mamafa. O lea la, fesoasoani fa'asusu e pei ole yttrium oxide (I LUA ONO), calcium oxide (CaO), po'o mea e le masani ai o le paneta e masani ona fa'aopoopo e fa'alauiloa ai le fa'amama vai-vaega ma fa'aleleia le fa'asalalauina o tuaoi o saito.
Ole fa'agasologa ole gaosiga e masani lava ona amata ile fa'aitiitiga o le fa'aitiotia o le alumini oxide i totonu ole si'osi'omaga o le nitrogen e gaosia ai pauta AlN.. Ona nutililii lea o pauta nei, faia e ala i auala e pei o lipine lafo po'o tui tui, ma fa'amama i le vevela i le va 1700 °C ma 1900 ° C i lalo ole si'osi'omaga e mauoa ai le nitrogen. Oomi fa'amafanafana po'o fa'aosofia le fa'alumaina o le plasma (SPS) e mafai ona faʻateleina atili le mamafa ma le faʻafefe o le vevela e ala i le faʻaitiitia o le porosity ma faʻalauiloaina le faʻatulagaina o saito. O lo'o su'esu'eina fo'i faiga fa'aopoopo fa'aopoopo e maua mai ai elemene AlN lavelave fa'atasi ma le fa'aogaina o le fa'aogaina o le fa'amama..
Fa'aoga ile Fa'aeletonika Oloa Fa'apipi'i ma Fa'atonu Fa'atonu
O se tasi o fa'aoga e sili ona mata'ina o le mama alumini nitride ceramics o lo'o i totonu o le afifiina fa'aeletoroni, aemaise lava mo meafaigaluega maualuga-malosi pei ole insulated gateway bipolar transistors (IGBTs), diodes leisa, ma le maualuga tele o taimi (RF) amplifiers. A'o fa'atupula'ia le mafiafia o le mana i masini fa'aeletoroni fa'aonaponei, e taua tele le fa'amalo lelei o le mafanafana ina ia mautinoa le fa'atuatuaina ma le ola umi. AlN substratums ofo atu se fofo sili ona lelei e ala i le tu'ufa'atasia o le maualuga o le fa'avevela fa'amama fa'atasi ai ma le fa'aesea eletise sili, puipuia o ta'amilosaga pu'upu'u ma tulaga e sola ai le vevela.
E lē gata i lea, 'apamemea pipi'i sa'o fa'avae AlN (DBC) ma u'amea malosi fa'apala (MA) o lo'o fa'agasolo ona fa'aaogaina mea'ai i sitaili fa'aogaina mo ta'avale eletise, fa'afouina punaoa fa'afouina, ma taavale afi eletise alamanuia. Fa'atusatusa i le alumina masani po'o le silicon nitride substratums, AlN e maua ai le fa'aliliuina vave o le mafanafana ma sili atu le fetaui lelei ma fa'atasi pu'e kasa o le fa'alauteleina o le vevela, fa'apea e fa'aitiitia ai le vevesi fa'ainisinia ma fa'aleleia ai le fa'atinoina o le tino atoa. O suʻesuʻega faʻaauau e faʻamoemoe e faʻaleleia atili le faʻaogaina o le malosi ma metotia faʻapipiʻi i luga ole vaega ole AlN e faʻalautele atili ai lona faʻaogaina..
Fa'aoga i le Optoelectronic ma le Matai-Maulalo Mea
I tua atu o le afifiina o oloa faaeletonika, alumini nitride porcelains faia se tiute taua i optoelectronic ma maualuga-vevela talosaga ona o lo latou manino i le ultraviolet. (UV) fa'avevela ma le puipuiga malu. E masani ona fa'aogaina le AlN e fai ma mea'ai mo le loloto o le fa'avevelaina o le malamalama UV (LED) ma laser diodes, aemaise i talosaga e manaʻomia ai le tumama, lagona, ma fesootaiga mata'utia. O lona vaeluaga lautele ma le maualalo o le absorption coefficient i le UV range ua avea ai ma sui talafeagai mo le lagolagoina o le alumini gallium nitride mama mama. (AlGaN)-fa'avae heterostructures.
I le male, Ole malosi ole AlN e galue sa'o ile maualuga ole vevela 1000 ° C e talafeagai mo le faʻaaogaina i masini, afi eletise, ma elemene o loʻo faʻaalia i le vevela tele. I le vateatea ma maketi tau puipuiga, AlN-based sensing unit plans o lo'o fa'aogaina i masini va'alele e mata'ituina ai masini ma masini e pulea ai le vevela e mautinoa lava e le manuia ai oloa masani.. Faʻaauauina faʻafouga i le faʻapipiʻiina o ata manifinifi ma taʻiala o le tuputupu aʻe o le epitaxial o loʻo faʻalauteleina ai le avanoa o le AlN i le isi augatupulaga optoelectronic ma le maualuga-vevela faʻapipiʻiina faiga..
( Aluminium Nitride Ceramics)
Mauaina o le Si'osi'omaga ma Amio Sa'o Umi
O se iloiloga autu mo so'o se ituaiga o mea fa'apipi'i o lona fa'amaoni tumau i lalo o fa'alavelave fa'atino. O le nitride alumini mama mama e faʻaalia ai le saogalemu o le siosiomaga faʻatusatusa i le tele o isi sima. E matua puipuia lava mai le fa'aleagaina mai acids, alkalis, ma uamea u'amea, fa'amautinoa le malosi i tulaga fa'ama'i fa'amalosi. Peitai, O le AlN e faigofie ona fa'asusu pe a fa'aalia i le susu i le maualuga o le vevela, lea e mafai ona fa'aleagaina lona luga ma fa'aitiitia le fa'atinoga o le vevela.
Ina ia faʻaitiitia lenei tulaga, fa'ai'uga saogalemu e pei ole nitride silicon (Si ₃ N ₄), mama mama alumini oxide, po'o fa'amaufa'ailoga fa'avae polymer e fa'apipi'iina soo i luga ole fa'aleleia atili ole susu. E lē gata i lea, e fa'aogaina auala fa'amautu ma fa'aputu oloa i le fa'atulagaina o masini e fa'atumauina ai le fa'amaoni o mea'ai AlN i lo latou olaga tautua.. A'o aga'i mai e sili atu le sa'o o faiga fa'alesiosiomaga, the non-toxic nature of AlN additionally places it as a preferred alternative to beryllium oxide, which poses wellness risks throughout processing and disposal.
Fa'ai'uga
Light weight aluminum nitride ceramics represent a class of innovative products distinctly fit to address the expanding needs for effective thermal administration and electrical insulation in high-performance electronic and optoelectronic systems. Their outstanding thermal conductivity, saogalemu o vailaau, and compatibility with semiconductor technologies make them one of the most suitable substrate material for a variety of applications– from vehicle power modules to deep UV LEDs and high-temperature sensors. As manufacture innovations remain to progress and affordable manufacturing techniques grow, the fostering of AlN substratums is anticipated to rise substantially, fa'aola fa'afouga i le isi augatupulaga fa'atekinolosi ma masini fa'ata.
Fa'atau
Advanced Ceramics na faavaeina ia Oketopa 17, 2012, o se pisinisi maualuga-tech tuuto atu i le suesuega ma atinae, gaosiga, faiga, fa'atauga ma 'au'aunaga fa'atekinisi o mea tau sima ma oloa. O a matou oloa e aofia ai ae le gata i Boron Carbide Ceramic Products, Boron Nitride Ceramic Products, Silicon Carbide Ceramic Products, Silicon Nitride Ceramic Products, Zirconium Dioxide Ceramic Products, ma isi. Afai e te fiafia, faamolemole lagona le saoloto e faafesootai matou.([email protected])
Fa'ailoga: alumini nitride sima, aln alumini nitride, aln alumini nitride ceramic
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