1. Zoyambira Zamalonda ndi Zopindulitsa Zachilengedwe
1.1 Kapangidwe ka Crystal ndi Zomwe Zachilengedwe
(TRUNNANO Aluminium Nitride Powder)
Round light weight aluminum nitride (AlN) is a specialized ceramic powder form that retains the remarkable physical and chemical buildings of mass AlN while supplying boosted flowability, packaging thickness, and dispersion qualities because of its controlled spherical morphology.
Like conventional AlN, it crystallizes in the hexagonal wurtzite framework, where strong covalent bonds between light weight aluminum and nitrogen atoms provide high thermal stability, exceptional electrical resistivity, and a broad bandgap of around 6.2 eV.
The most prized attribute of AlN is its high thermal conductivity, which can go beyond 170 W/(m · k )in solitary crystals and reach 140– 160 W/(m · k )in high-purity polycrystalline kinds, zambiri kuposa zodzaza wamba monga aluminiyamu (≈ 30 W/(m · k)).
Kuchita bwino kumeneku kumachokera kumayendedwe abwino a phonon, zomwe zimakhudzidwa kwambiri ndi zovuta za latticework, zoipitsa– makamaka mpweya– ndi malire a tirigu.
Kuwonongeka kwa okosijeni kumapangitsa kuti pakhale ntchito za aluminiyamu ndi magawo owonjezera monga Al Two O ₃ kapena lightweight aluminium oxynitride (ALON), zomwe zimafalitsa ma phononi ndikuwononga mphamvu zamatenthedwe.
Choncho, zoyera zozungulira za AlN ufa amapangidwa ndikuyengedwa pansi pamavuto akulu kuti achepetse mpweya wa okosijeni, zambiri pansipa 1000 ppm, kuonetsetsa kufalitsa kutentha kwabwino pamagwiritsidwe ntchito omaliza.
1.2 Spherical Morphology ndi Ubwino Wogwira Ntchito
Kusintha kuchoka pazidutswa za AlN zosafanana kapena zomangika kupita ku mawonekedwe ozungulira kumayimira luso laukadaulo muuinjiniya wa ufa., motsogozedwa ndi zofuna za njira zamakono zopangira zinthu komanso njira zowonjezera.
Zidutswa zozungulira zikuwonetsa kuyenderera kwa premium chifukwa cha kupukuta kochepa komanso kuuma kwa pamwamba, kulola kudyetsedwa kosasinthasintha m'makina ochita kupanga monga screw feeders, zotengera vibratory, ndi osindikiza a 3D a ufa.
Kuyenda bwino kumeneku kumayenderana ndi mlingo wokhazikika, kuchepa kutsekeka, ndi kulimbikitsa umphumphu wa ndondomeko muzochita zamalonda.
Kuphatikiza apo, ufa wozungulira umakhala wokhuthala kwambiri poyerekeza ndi ma aang'ono awo, kuchepa kwa zinthu zopanda kanthu zikaphatikizidwa mu matrices a polima kapena matupi obiriwira a ceramic.
Kudzaza kwapamwamba kwambiri kumawonjezera kukhathamiritsa kwamafuta kwamafuta popanda kuwononga kukhazikika kwamakina kapena kusinthika..
( TRUNNANO Aluminium Nitride Powder)
The yosalala, Malo a isotropic ozungulira AlN amachepetsanso kupsinjika ndi nkhawa mumagulu a polima, kukulitsa kulimba kwamakina ndi mphamvu ya dielectric.
Zopindulitsa za morphological izi zimapangitsa kuzungulira kwa AlN kukhala koyenera kwambiri pamapulogalamu omwe amafunikira kulondola, kubwerezabwereza, ndi magwiridwe antchito apamwamba.
2. Njira Zophatikizira ndi Kupanga Mafakitale
2.1 Direct Nitridation ndi Post-Synthesis Spheroidization
Kupanga kozungulira kozungulira kolemera kwa aluminiyamu nitride kumaphatikizapo kaphatikizidwe kachindunji kwa tinthu tating'onoting'ono tozungulira kapena kukonzanso pambuyo pa ufa wa AlN wosakhazikika kuti akwaniritse sphericity..
Njira imodzi ndikuthira madontho a aluminiyamu molunjika m'malo okhala ndi nayitrogeni, komwe kugwedezeka kwapamadzi kumapangitsa kuti pakhale zozungulira ngati aluminiyamu imayankha kupanga AlN..
Njira iyi, pamene odalirika, imafunika kuwongolera bwino kutentha, kufalitsidwa kwa gasi, ndi tinthu dimension kugawa kupewa kusakwanira nitridation kapena mulu.
Mosiyana ndi zimenezo, mafuta osagwirizana a AlN opangidwa kudzera pakuchepetsa kwa carbothermal (Al ₂ O ZISANU + 3C + N ZIWIRI → 2AlN + 3CO) akhoza kugonjetsedwa ndi kutentha kwakukulu kwa plasma spheroidization.
Munjira iyi, zitsulo za angular zimalowetsedwa mu jet yotentha ya plasma (mwachitsanzo, radiofrequency kapena DC plasma), kumene amasungunuka kwakanthawi ndikukhala ozungulira chifukwa cha kugwedezeka kwapamtunda asanayambe kulimbikitsana paulendo..
Thandizo la plasma limathandizanso kuyeretsa malo otsetsereka potulutsa ma oxides apamtunda, kuwonjezeranso kuwongolera magwiridwe antchito amafuta.
2.2 Quality Control ndi Surface Engineering
Kuonetsetsa kufanana mu tinthu kukula kufalitsidwa, sphericity, ungwiro, ndipo chemistry ya m'derali ndiyofunikira kwambiri pakutengera mafakitale.
Othandizira amagwiritsa ntchito laser diffraction poyesa kukula kwa tinthu, kusanthula ma electron microscopy (CHITI) pakuwunika kwa morphological, ndi X-ray photoelectron spectroscopy (Zithunzi za XPS) kuyang'ana mawonekedwe a pamwamba.
Sphericity imayezedwa pogwiritsa ntchito mitundu yosiyanasiyana ya mawonekedwe monga kuzungulira kapena gawo la mawonekedwe, ndi ufa wochita bwino kwambiri womwe umawonetsa sphericity > 90%.
Kupititsa patsogolo kuyanjana ndi matrices achilengedwe, Zidutswa zozungulira za AlN nthawi zambiri zimayikidwa pamwamba ndi oyimira ophatikizana monga silanes kapena titanates..
Mankhwalawa amathandizira kulumikizana kwapakati pakati pa ceramic filler ndi polymer resin, kuchepetsa kukana kwa malire a kutentha ndi kuteteza ku mulu wa filler.
Zomaliza za Hydrophobic zitha kuyikidwanso kuti muchepetse kuyamwa kwamadzi, zomwe zimatha kufooketsa nyumba zokhalamo kapena zamalonda ndikulengeza za hydrolysis m'malo achinyezi.
3. Mapulogalamu mu Thermal Administration ndi Advanced Materials
3.1 Ma Polymer Composites a Electronics Packaging
Round AlN imagwiritsidwa ntchito kwambiri ngati chodzaza bwino kwambiri chamafuta mu epoxy, silikoni, ndi ma composites opangidwa ndi polyimide a encapsulation yamagetsi, underfill zipangizo, zipangizo kutentha mawonekedwe (TIMs), ndi boardboard yosindikizidwa (Ma PCB).
M'mapulogalamu awa, cholinga chake ndikuchotsa kutentha kuchokera ku zida zamphamvu za semiconductor monga ma CPU, GPUs, amplifiers mphamvu, ndi oyendetsa magalimoto a LED.
The mozungulira morphology imathandizira kudzaza kwakukulu– kawirikawiri kupita kupitirira 70 vol%– ndikusunga mamasukidwe otsika, kuloleza kugwirizira kosavuta ndi kugwiritsa ntchito wosanjikiza woonda.
Izi zimabweretsa ma composite thermal conductivities a 3– 8 W/(m · k), kuwonjezereka kwakukulu pa ma polima osadzazidwa (≈ 0.2 W/(m · k)) ndi zodzaza zachikhalidwe.
Malo ake okhalamo otsekereza magetsi amatsimikizira kuti kusintha kwa kutentha sikungawononge chitetezo cha dielectric, kupangitsa kuti ikhale yabwino kwa ma frequency apamwamba komanso ma frequency apamwamba.
3.2 Kupanga Zowonjezera ndi Ceramic Processing
Mu kupanga zowonjezera, makamaka binder jetting ndi mosamala laser sintering (SLS), ozungulira AlN ufa ndi ofunikira kuti akwaniritse kachulukidwe ka bedi la ufa komanso kufalikira pafupipafupi.
Kuthamanga kwawo kumapangitsa kuti pakhale kusanjika kopanda chilema, pomwe makulidwe apamwamba amawonjezera mphamvu zokomera chilengedwe komanso kumachepetsa kutsika panthawi ya sintering.
Ufa wozungulira umathandiziranso kupanga zida za ceramic zowoneka bwino zokhala ndi mawonekedwe abwino komanso kulondola kwapadera., zothandiza muzamlengalenga, chitetezo, ndi zida za semiconductor.
Mu chikhalidwe ceramic processing, spherical AlN imapangitsa kuti matupi obiriwira aziwoneka bwino komanso amachepetsa porosity muzinthu zopindika., kuonjezera mphamvu ya kutentha ndi makina.
4. Arising Frontiers ndi Future Outlook
4.1 Next-Generation Electronic and Energy Systems
Pamene zida zamagetsi zikupitirira kuchepa kukula pamene zikuwonjezera mphamvu, kufunikira kwa mautumiki apamwamba oyendetsera kutentha kumakula kwambiri.
Round AlN yakonzeka kutenga gawo lofunikira pakupanga matekinoloje monga 5G/6G base terminals, zida zamagetsi zamagetsi zamagetsi, ndi makompyuta ochita bwino kwambiri (HPC) machitidwe, kumene kutentha kumalepheretsa kugwira ntchito bwino.
Kuphatikizidwa kwake m'mbale zozizira zamadzimadzi, zofalitsa kutentha, ndi zoziziritsa zophatikizidwa zimagwiritsa ntchito njira zatsopano pakukhathamiritsa kwa kutentha kwadongosolo.
Mu malo osungirako mphamvu, kuzungulira AlN ikuyang'aniridwa ngati chowonjezera chotenthetsera koma choteteza magetsi mu zolekanitsa mabatire ndi ma encapsulants kuti muchepetse kutha kwa matenthedwe mu mabatire a lithiamu-ion..
4.2 Zovuta Zokhazikika ndi Zowonongeka
Ngakhale ubwino wake, kukhazikitsidwa kwakukulu kwa AlN yozungulira kumakumana ndi zovuta zokhudzana ndi mtengo, kaphatikizidwe wogwiritsa ntchito mphamvu, ndi kukhudza chilengedwe.
Plasma spheroidization ndi kupanga ufa wapamwamba kwambiri kumafunikira mphamvu zambiri, kuyambitsa maphunziro kukhala maphunziro abwino kwambiri komanso okhazikika.
Kubwezeretsanso zotsalira za AlN ndikukula kwa njira zosiyanasiyana zophatikizira, monga njira zothetsera kapena kutsika kwa kutentha, ndi madera ochita kafukufuku.
Komanso, kusanthula kwa moyo ndi mphamvu za chain chain zikutha kukhala zofunika kwambiri pomwe kufunikira kwazinthu zofunikira padziko lonse lapansi kukukulirakulira.
Powombetsa mkota, spherical aluminium nitride imayimira kusintha kwatsopano mu luso la ceramic powder, kuphatikiza mtundu wamafuta amtundu wa AlN ndi mawonekedwe opangidwa mwaluso kuti azitha kuyendetsa bwino komanso kuchita bwino..
Ntchito yake pothandizira njira zowunikira zowunikira zam'mibadwo yotsatira pamagetsi, mphamvu, ndi kupanga kwapamwamba kumatsindika mtengo wake wowerengeka pakupita patsogolo kwa zinthu zogwira ntchito kwambiri.
5. Wogulitsa
TRUNNANO ndi ogulitsa boron nitride yokhala ndi over 12 zaka zambiri zachitetezo cha nano-building energy komanso chitukuko cha nanotechnology. Imavomereza kulipira kudzera pa Kirediti kadi, T/T, West Union ndi Paypal. Trunnano idzatumiza katundu kwa makasitomala kunja kwa FedEx, DHL, ndi mpweya, kapena panyanja. Ngati mukufuna kudziwa zambiri za aluminium ndi nitride, chonde omasuka kulankhula nafe ndi kutumiza kufunsa.
Tags: aluminium nitride,ndi nitride,aln aluminium nitride
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