01 Taw Qhia
Additive manufacturing (AM) ntawm ceramics yog revolutionizing tus tsim thiab zus tau tej cov microwave hluav taws xob Cheebtsam nyob rau hauv qhov chaw sib txuas lus systems. Ceramics yog indispensable nyob rau hauv xws li pab kiag li lawm vim lawv zoo heev electromagnetic zog, siab thermal stability, thiab zoo heev mechanical zog. Los ntawm AM, cov duab thiab qhov ntev ntawm cov ntaub ntawv ceramic tuaj yeem raug tswj xyuas kom meej, ua kom lawv ua tau raws li qhov yuav tsum tau ua kom nruj thiab ua haujlwm tau zoo hauv microwave electronics. Ntxiv mus, electromagnetic shielding Cheebtsam ua lub luag haujlwm tseem ceeb hauv kev txo cov electromagnetic cuam tshuam thiab ua kom cov teeb liab ruaj khov. Kev siv cov khoom siv ntxiv uas tsim los ntawm ceramics muaj ib txoj hauv kev tshiab los txhim kho kev ua haujlwm ntawm rwb thaiv tsev thiab txhim kho kev tiv thaiv zoo.
Laser & Electron Beam ua
02 Additively Manufactured Lim
Cov ntaub ntawv ceramic muaj cov tshuaj lom neeg ruaj khov thiab tiv thaiv corrosion, ua rau lawv haum rau ntev - siv nyob rau hauv ib puag ncig hnyav ua lim. Tsis tas li ntawd, kev sib koom ua ke ntawm cov khoom siv dielectric nrog AM txhawb nqa ntau yam ntawm dielectric constants (εr). Tib cov khoom siv dielectric tuaj yeem ua tiav qhov sib txawv εr qhov tseem ceeb los ntawm kev hloov pauv tsis xws li aperture loj, geometry, thiab cov qauv hierarchical. Qhov no ua rau kev hloov kho ntawm cov lim dej ceramic kom tau raws li cov kev xav tau tshwj xeeb thiab txhim kho kev lim dej kom zoo thiab raug.
Ib qho piv txwv yog monolithic dielectric waveguide lim fabricated siv Lithography-raws li Ceramic Manufacturing (LCM) technology. Lub lim tau tsim los ua haujlwm ntawm 11.5 GHz nrog 850 MHz bandwidth thiab yog tsim los ntawm ib qho -daim dielectric disk, uas yog nyiaj-plated los ua cov haujlwm ntawm cov vaj tsev zoo sib xws. LCM thev naus laus zis muab kev tsim qauv yooj yim yam tsis tas yuav tsum muaj cov pwm kev cai thiab tso cai rau kev tsim khoom ntau dua. Metallization ntawm ceramics leverages ceramics 'tsis kam rau siab kub, corrosion kuj, thiab insulating zog, thaum muab lawv nrog lub zog thiab conductivity ntawm hlau los optimize kev ua tau zoo.
Daim duab 1.(a) Plaub- xaj dielectric waveguide lim, (b) BPF raws li plaub- xaj hemispherical resonator, (c) C-band triplexer lim.
Laser & Electron Beam ua
03 Additively Manufactured Resonators
Resonators yog cov khoom siv hluav taws xob muaj peev xwm ua kom ruaj khov ntawm cov zaus tshwj xeeb thiab tau siv dav hauv kev tsim ntau zaus thiab ua cov teeb liab. Microwave thiab siab - cov cim zaus yog feem ntau siv hauv kev sib txuas lus satellite thiab radar systems. Lub siab ruaj khov thiab siab Q-factor ntawm dielectric resonators ua rau lawv zoo tagnrho rau cov ntawv thov.
Lub functionality ntawm dielectric resonators yog raws li cov lus teb ntawm cov ntaub ntawv dielectric rau electromagnetic tsis. Kev nthuav tawm ceev ntawm cov nthwv dej no yog txiav txim siab los ntawm εr ntawm cov khoom, thaum qhov loj, cov duab, thiab cov khoom ntawm cov khoom siv dielectric siv nyob rau hauv lub resonator cuam tshuam rau nws resonant zaus. Nrog AM, dielectric resonators tuaj yeem tsim thiab tsim ua kom me me thiab siab -kev ua tau zoo, haum rau ntau yam kev xav tau. Qhov no optimizes radar teeb liab propagation thiab reflection yam ntxwv. Ib txoj hauv kev zoo li no ua rau muaj kev hloov kho ntau dua, meej, thiab tus nqi- ua tau zoo ntawm cov dielectric resonators.
Daim duab 2.(a) Kav hlau txais xov qauv schematic, (b) tri-mode resonator, (c) uniaxial anisotropic dielectric resonator kav hlau txais xov.
Laser & Electron Beam ua
04 Additively Manufactured Sensors
AM sensors tau txais txiaj ntsig los ntawm customizable thiab complex geometries thiab architectures. Thaum ua ke nrog cov piezoelectric, thermoelectric, thiab piezoresistive zog ntawm cov ntaub ntawv ceramic, lawv ua rau siab -precision thiab siab - kev ua haujlwm sensing daim ntawv thov.
Piezoelectric ceramic sensors, tus cwj pwm los ntawm lawv tus cwj pwm electromechanical coupling, yog qhov tseem ceeb hauv aerospace. Lawv muab kev saib xyuas qhov tseeb ntawm qhov siab, qhov kub thiab txias, thiab kev vibration, thiab tau dav siv los ntsuas kev ua haujlwm ntawm lub cav, lub fuselages, thiab lwm yam tseem ceeb hauv aerospace.
Vim yog lub hauv paus brittleness ntawm ceramics, txoj kev loj hlob ntawm saj zawg zog ceramics tau dhau los ua ib qho kev tshawb fawb tseem ceeb. Txhawm rau hais txog qhov no, qhov hloov pauv tau yooj yim ceramic composite siab sensor tau tsim los siv DLP AM, sib txuas BaTiO3 nrog MWCNTs hauv cov duab thaij duab los ua kom zoo dua dielectric kev ua tau zoo thiab kev ua haujlwm yooj yim. Raws li pom nyob rau hauv daim duab, lub moos moos - zoo li kev ntxhov siab- kev sib xyaw ua ke tau tsim los txhim kho rhiab heev. Finite cov ntsiab lus tsom xam thiab kev sim paub tseeb tias txhim kho cov kab rhiab heev thoob plaws ntau qhov siab, ua kom pom qhov ua tau ntawm DLP hauv siab -kev ua tau zoo hloov pauv tau.
Daim duab 3.(a) Saj zawg zog capacitive siab sensor, (b) saj zawg zog piezoelectric composites thiab schematic ntawm ib tug me me neeg hlau.
Laser & Electron Beam ua
05 Xaus
Kev tsim khoom ntxiv ntawm ceramics ua rau kev hloov pauv ntawm cov khoom siv ceramic xws li kev kub siab, tsis tshua muaj thermal conductivity, thiab zoo heev electromagnetic shielding, ua rau lawv zoo tagnrho rau kev siv aerospace nrog rau kev sib txuas lus, radar, thiab thermal tiv thaiv. Piv nrog rau kev tsim khoom ib txwm muaj, AM muaj qhov zoo tshaj plaws rau cov khoom siv ceramic complex, muab cov qauv tsim kom yooj yim dua los tsim cov duab sib txawv thiab cov qauv sib txawv. Qhov no yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig hauv aerospace, qhov uas txo qhov hnyav tuaj yeem txhim kho roj efficiency thiab kev ua tau zoo.
AM kuj txhawb kev sib koom ua ke, sib txuas ua ke ntau yam haujlwm- xws li kev ua haujlwm ruaj khov, thermal kuj, thiab electromagnetic shielding - rau hauv ib feem, yog li txo tus naj npawb ntawm cov khoom thiab ua kom yooj yim sib dhos. Tsis tas li ntawd, cov thev naus laus zis no tso cai rau kev tsim qauv sai thiab tsim kev hloov kho raws li kev tawm tswv yim ua haujlwm.
