Tsis tshua muaj ntiaj teb ntsiab lusyog ib lub sij hawm dav dav rau 17 tus hlau, suav nrog 15 txoj kab ntawm caj ceg thiabscandiumthiabyttriumCov. Txij li thaum xaus ntawm lub xyoo pua 18th, lawv tau siv dav hauv metallurgy, ceramics, iav, petying, ua liaj ua teb thiab lwm yam kev lag luam. Daim ntawv thov ntawm lub ntiaj teb tsis tshua muaj neeg nyob hauv kuv lub tebchaws kev lag luam tau pib xyoo 1930. Xyoo 1970, tag nrho cov nyiaj ntawmTsawg lub ntiaj tebSiv rau hauv cov ntaub ntawv sib koom ua ke tau 70T / xyoo, suav nyiaj rau kwv yees li 2% rau 3% ntawm tag nrho cov khoom lag luam. Nyob rau tam sim no, tsis tshua muaj cov av hauv lub ntiaj teb feem ntau yog siv nyob rau hauv ceramics, cov ceramics, ceramic glazes thiab lwm daim teb. Nrog kev txhim kho txuas ntxiv thiab kev thov ntawm cov khoom lag luam hauv av tsis tshua muaj txiaj ntsig, ruaj khov kho lawv qhov kev ua tau zoo, txo cov nqi tsim khoom, thiab ua lawv daim ntawv thov kev lag luam tau.
Daim ntawv thov ntawm lub ntiaj teb tsawg hauv cov qauv ceramics
■ Thov nyob rau hauvAL2O3Ceramics Al2o3 Ceramics yog cov qauv siv ntau tshaj plaws vim lawv lub zog siab, kev ua kom zoo, kev tiv thaiv corrosion, thiab cov khoom siv hluav taws xob tsis zoo, thiab cov khoom siv hluav taws xob tsis zoo, thiab cov khoom siv hluav taws xob tsis zoo, thiab cov khoom siv hluav taws xob ua haujlwm zoo. Ntxiv cov av tsis tshua muaj neeg zoo li xws liY2O3, La2o3, Sm2o3, thiab lwm yam. Txhim kho cov khoom ntub dej ntawm al2o3 cov ntaub ntawv sib xyaw, txo cov lus melting melting ntawm cov ntaub ntawv ceramic; Txo cov porosity ntawm cov khoom siv thiab nce lub ntom ntom; tabkaum lub tsiv teb ntawm lwm ions, txo qhov kev tsiv teb tsaws chaw ntawm cov ciaj ciam teb, inhibit qoob loo qoob loo, thiab pab txhawb kev tsim cov qauv ntom ntom ntom; Txhim kho lub zog ntawm cov iav theem, yog li ua tiav lub hom phiaj ntawm kev txhim kho cov khoom siv cov khoom siv ntawm al2o3 ceramics.
■ Thov nyob rau hauvSi3n4Ceramicsi3N4 Ceramics muaj cov khoom siv neeg kho kom zoo nkauj thiab tshuaj lom neeg ruaj khov, thiab yog cov khoom siv cuam tshuam rau cov kev kub-kub ceramics. Txij li thaum Si3N4 yog qhov sib xyaw ua ke muaj zog sib xyaw ua ke, Si3N4 ntshiab tsis tuaj yeem ua rau muaj kev tawm tsam los ntawm kev sib tw theem Sintering. Yog li no, ntxiv rau cov tshuaj tiv thaiv sintering ntawm ncaj qha nitridation ntawm Si hmoov, qee qhov ntau ntawm cov sintering pab yuav tsum tau ntxiv los ua cov khoom siv ntom ntom. Tam sim no, qhov ntau zoo tshaj sintering AIDS rau npaj SI3N4 ceramics tsis tshua muaj ntiaj teb oxides xws li xws liY2O3, Nd2o3, thiabLa2o3Cov. Ntawm ib sab tes, cov ntiaj teb tsis tshua muaj tshwm sim nrog kev txiav txim siab txog cov nitrogen muaj qhov kub ntawm Sintering ntawm Sintering ntawm SI3N4 ceramics; Ntawm qhov tod tes, lawv tsim Y-La-Si-Si-Si-Si-Si-silting muaj zog, thiab yog qhov kev kub ntxhov siab, uas txhim kho lub siab kub ua kom muaj qhov kub thiab txias.
■ Thov nyob rau hauvRau 40Ceramics ZOX CERAMIC muaj qhov ntom ntom, siab melting point thiab hardness, tshwj xeeb tshaj yog khoov rau lub zog thiab pob txha tawv tawv tawv, uas yog qhov siab tshaj plaws ntawm txhua lub ceramics. Txij li thaum cov siv lead ua ntawm ZRO2 yog nrog kev hloov pauv txawv, qhov ua tau ntawm kev siv ncaj qha yog txwv. Nrog rau qhov tob ntawm kev tshawb fawb ua haujlwm, nws pom tias qhov sib ntxiv ntawm lub ntiaj teb tsis tshua muaj kev tiv thaiv kev hloov pauv ntawm theem kev hloov pauv ntawm ZUCT2. Feem ntau siv tsawg lub ntiaj teb oxides yog feem ntauY2O3,Nd2o3, thiab CE2O3. Lawv lub ionic lub vojvoog yog qhov ze ze ntawm ZR4 +, thiab lawv tuaj yeem tsim cov monoclinic, tetragonal thiab cub cov kev daws teeb meem nrog ZUPS2. Hom kev siv ZRO2 muaj cov khoom siv tau zoo ua tau zoo. Piv txwv li,Tus kab khiavtuaj yeem tsim thaj av theem ntawm tetragonal zirconia cov tshuaj nyob rau hauv ntau ntau nrog ZRO2, uas yog cov khoom siv electrolyte zoo. Y2O3-dog dig ZRO2 (YSZ) yog ib qho oxygen zoo siv hauv cov khoom siv oxyen (sofc)
■ Thov nyob rau hauvSiricrooj ceramicsSilicon CarbideCeramics tiv thaiv cov kub, thermal poob siab, hnav, zoo thermal conductivity thiab yog feem ntau siv high-kub cov txheej txheem ceramics. Lub zog sib haum sib sau ua cov yam ntxwv ntawmSiricTxiav txim siab tias nws nyuaj rau ua tiav Sintering sensification nyob rau hauv ib txwm muaj mob. Nws yog feem ntau tsim nyog los ntxiv Sintering AIDS lossis siv cov nias kub thiab kub yog nias cov txheej txheem SINTATING SINTING. Cov txheej txheem ntau lawm yog qhov nyuaj thiab tus nqi yog siab. Qhov zoo tshaj plaws sintering kev pab rau cov tshuab puab sintering ntawm sic yog al2o3-y2o3; Sic-yag cov khoom sib xyaw ua ke nrog y3al5o12 (YAG rau luv luv) raws li qhov kev pab ntau dua, yog li lawv tau txiav txim siab yog ib qho ntawm kev cog lus ntau silicon carbide ceramic ceramic ceramic.
■ Thov nyob rau hauvTus ALNrooj ceramicsTus ALNyog lub rooj sib tham sib xyaw ua ke nrog lub siab zoo nkauj, siab direcal conductivity, qis rau corrosion ntawm cov hlau thiab alloys xws li hlau thiab txhuas. Nws muaj qhov kub zoo heev nyob rau hauv cov huab cua tshwj xeeb thiab yog qhov zoo tshaj plaws loj-teev ua ke sib xyaw ua ke Circuit Court Cegrcuit Courstrate thiab Ntim Khoom. Txij li thaum Aln yog kev sib cog lus sib khi, sintering yog qhov nyuaj heev, thiab ib qho tseem ceeb ntawm cov pa roj av (tsis tshua muaj kev pab cuam tshuam ntxiv Tsis tas li ntawd, Sinining AIDS tseem tuaj yeem hnov cov kab mob oxygen impurities hauvTus ALN, txo qis txhuas kev tshwm sim los ntawm ib nrab oxygen yaj ua aln lattice, thiab txhim kho lub thermal conductivity ntawmTus ALN.
■ Daim ntawv thov hauv Sialon ceramics sialon ceramics yog hom ntawm Si-tsis muaj-al ntom polycrystalline nitride ceramics tsim los ntawmSi3n4ceramics. Lawv tau tsim los ntawm kev hloov ib nrab ntawm Sioms thiab n atoms hauvSi3n4los ntawm al atoms thiab o atoms hauv al2o3. Lawv lub zog, kev nruj heev, thiab oxidation tsis zoo yog qhov zoo dua li cov khoom siv ceramic cav thiab lwm cov khoom siv hluav taws xob tiv thaiv kab ke. Siaon cov ntaub ntawv tsis yooj yim rau sinter. Cov lus qhia ntawm lub ntiaj teb tsawg yog ua rau muaj kev tsim kom muaj kev tsim cov theem ua kua ntawm qhov ntsuas kub qis dua, uas txhawb nqa Sintering. Nyob rau tib lub sijhawm, tsis tshua muaj lub ntiaj teb nyob rau hauv lub teeb meem ntawm cov iav theem, txhim kho chav tsev dej thiab ua tau zoo ntawm cov khoom siv. Cov kev tshawb fawb tau pom tias ntxiv 1%Y2O3tuaj yeem tsim lub iav kub txias thaum sininter sialon ceramics ntawm kev kub siab, tab sis kuj tseem txhim kho nws cov pob txha lov. Ib qho ntxiv, ntxiv ib qho nyiaj me me ntawm Y2O3 kuj tseem txhim kho nws cov oxidation tsis kam.
Daim ntawv thov uas tsis tshua muaj lub ntiaj teb tsis tshua muaj neeg nyob hauv Ceramics
Tsawg lub ntiaj tebyog ze ze rau kev ua haujlwm ceramics. Ntxiv qee yamTsis tshua muaj ntiaj teb ntsiab lusTxhawm rau cov ntaub ntawv nyoos ntawm ntau cov khoom noj muaj zog ceramics tsis tuaj yeem txhim kho Sintering, ntom, thiab lwm yam tseem ceeb, nws tuaj yeem txhim kho lawv cov teebmeem tshwj xeeb.
1Lub luag haujlwm hauv Superconducting Ceramics txij li xyoo 1987, thaum cov ntaub ntawv tshawb fawb los ntawm Tuam Tshoj, Nyiv, Tebchaws Asmeskas thiab lwm lub tebchaws pom tias cov neeg siv Oxide Oxideyttrium Barium tooj liab oxide(YBCO) Muaj kev kub siab superconductivity (TC txog 92K), tib neeg tau ua ntau yam kev tshawb fawb ntawm lub ntiaj teb kev ua haujlwm siab superconducting ceramics, thiab tau ua ntau yam kev vam meej. Japanese kev kawm tau qhia tias tom qab hloov y hauv YBCO nrogLub ntiaj teb tsis tshua muaj ntiaj teb(Ln) xws liNd, Sm, Eu, thiabGd, qhov tseem ceeb sib nqus teb lub zog ntawm lub txiaj ntsig cov khoom siv Lnconduced kuj tseem txhim kho, uas yog qhov zoo tshaj plaws siv hluav taws xob, lub zog cia thiab tsheb thauj mus los. Peking University SivRau 40raws li ib substrate thiab rhuab nws txog li 200 ° C, thiab evaporated y (lossis lwm yamTsawg lub ntiaj teb), Ba oxide thiab cu ntawm cov khaubncaws sab nraud povtseg hauv cov khaubncaws sab nraud povtseg rau hauv cov khaubncaws sab nraud povtseg rau kev kho mob diffusion, thiab kub kho lawv hauv qhov kub ntawm 800-900 ° C. Lub resulting superconducting ceramics pom zoo yog xim hlau tsis kam ntawm cov coefficient saum 100k. Kagoshima University hauv Nyiv ntxivTsis tshua muaj ntiaj tebLA rau SR thiab NB Oxides los ua cov yeeb yaj kiab ceramic, uas ua rau pom superconductivity ntawm 255K.
2 Daim ntawv thov nyob rau hauv Piezoelectric ceramics txhuas titanate (PBTO3) Yog ib qho kev raug ua noj ua ke nrog cov tshuab hluav taws xob-hluav taws xob hluav taws xob txuas hluav taws xob sib txuas. Nws muaj qhov ntsuas kub siab (490 ° C) thiab yog qhov tsim nyog rau kev thov nyob rau hauv cov kev kub siab thiab siab siab. Txawm li cas los xij, thaum lub sij hawm nws npaj thiab txias txheej txheem, micro kab nrib pleb yog nquag tshwm sim vim yog cov cubic-Tetriamanal Theem Kev Hloov. Txhawm rau daws cov teeb meem no, tsis tshua muaj ntiaj teb tau siv los hloov kho nws. Tom qab Sinininging thaum 1150 ° C, rov ua dua pbtio3 ceramics nrog ib tug txheeb ze ntom ntawm 99% tuaj yeem tau txais. Lub microstructure yog yooj yim txhim kho thiab tuaj yeem siv los tsim transducer arsays ua haujlwm nyob rau hauv cov kev mob siab ntawm 75mHz. Nyob rau hauv ua zacconate titmanate (pzt) piezoelectric ceramics nrog cov coefficiel siab, los ntawm kev ntxiv cov hauv ntiaj teb tsawg xws liLa2o3, Sm2o3, thiabNd2o3, Sinsing cov khoom ntawm pzt ceramics tuaj yeem txhim kho thiab ruaj khov hluav taws xob thiab khoom siv hluav taws xob tuaj yeem tau txais. Tsis tas li ntawd, kev ua yeeb yam ntawm Pzt ceramics tuaj yeem hloov kho los ntawm kev ntxiv ib qho me me ntawm lub ntiaj teb tsis tshua muaj tshuaj oxideTus kab khiavCov. Tom qab ntxiv CEO2, lub volume resistivity ntawm pzt ceramics nce, thiab nws hluav taws xob tiv thaiv nyob rau hauv cov txheej txheem kev laus thiab kev laus ntev kuj tau txhim kho. Pzt ceramics hloov kho los ntawmTsawg lub ntiaj tebTau siv dav hauv cov tshuab hluav taws xob siab, cov tshuab hluav taws xob ultrasonic, Uneamwater acoustic transducers thiab lwm yam khoom siv.
3Daim ntawv thov hauv kev coj ua ceramics yttrium-stabilized zirconia (ysz) ceramics nrogTsawg lub ntiaj teb oxide Y2O3Raws li kev ntxiv muaj cov thermal zoo thiab tshuaj ruaj khov ntawm qhov kub thiab txias, yog cov pa roj oxygen zoo, thiab muaj qhov muaj txiaj ntsig zoo hauv ion ceramics. YSZ Ceramic Sensors tau ua tiav los ntsuas cov pa oxygen hauv kev tso pa tawm, siv hluav taws xob zoo, thiab txuag hluav taws xob tseem ceeb. Lawv tau siv dav hauv kev lag luam boilers, smelting rauv, incinerators thiab lwm yam khoom siv sib txuas. Txawm li cas los xij, ysz ceramics tsuas yog qhia cov high ionic conduction thaum qhov kub siab dua 900 ° C, yog li lawv daim ntawv thov tseem raug rau qee qhov kev txwv. Cov kev tshawb nrhiav uas twb muaj lawm tau pom tias ntxiv tus nqi uas tsim nyog ntawm Y2O3 lossisGd2o3 to Bi2o3Ceramics nrog cov ionic conduction ntau dua tuaj yeem ua rau lub ntsej muag BI2O3 lub ntsej muag ntsej muag theem sau cubic rau chav tsev. Nyob rau tib lub sijhawm, xhoo tshav qhov txawv qauv kuj tau qhia tias (Bi2O3) 0.25 thiab (bi2o3) 0.25 thiab (bi2o3) 0.35 yog ob qho chaw ua kom lub ntsej muag nyob ruaj khov nrog cov oxygen o ion conductivity. Tom qab cov txheej ntawm cov ceramic no nrog kev tiv thaiv zaj duab xis ntawm (ZABLY
4 Daim ntawv thov hauv dielectric Ceramics Dielectric Ceramics yog siv los ua cov ceramic canacitors thiab microwave dielectric Cheebtsam. Hauv dielectric ceramics xws liTos2, Mgtio3,3Thiab lawv cov kev suav nrog Dielectric ceramics, ntxivTsawg lub ntiaj tebXws li LA, ND, thiab DY tuaj yeem txhim kho lawv cov khoom dielectric. Piv txwv li, hauv Batio3 Ceramics nrog tus nqi siab, ntxiv la thiab 30 ~ yuav khaws nws lub ntiaj teb tas li, thiab cov kev pabcuam lub neej ntawm lub cuab yeej dav dav. Hauv dielectric ceramics rau kev them nyiaj thermal Lub capally nyob ruaj khov chanterium titamics tau hloov kho nrog la2o3, thiab cov categic3-la2o3-La2Tamics tsis yog tswj hwm cov coeffices tsawg, tab sis kuj txhim kho lawv dikasectrictas li.
5 Daim ntawv thov hauv cov ceramics rhiab ceramics yog qhov tseem ceeb hom kev ua haujlwm ntawm ceramics. Lawv muaj kev pom zoo los ntawm kev nkag siab rau qee yam kev mob sab nraud xws li voltage, cov pa roj av lossis huab cua los ntawm cov tshuaj tiv thaiv lossis hloov ntawm lawv cov hluav taws xob ua tau zoo. Lawv tau dav siv raws li kev xav paub cov ntsiab hauv kev tswj lub voj voog, yog li lawv tau hu ua Sensor Ceramics. Muaj kev sib raug zoo ntawm kev sib raug zoo ntawm lub ntiaj teb tsis tshua muaj thiab cov kev ua tau ntawm hom ceramics no.
(1) Electro-optical ceramics: los ntawm kev ntxiv cov av qis qis oxideLa2o3Txhawm rau pzt, pob tshab ua lus qhia lirthhant zirconate tirgate (plzt) Electro-optical ceramics tuaj yeem tau txais. Tus thawj Matrix Cov Khoom Pzt feem ntau yog opaque vim tias muaj kev sib tw ntawm cov qoob loo, ua rau muaj kev sib ntxiv ntawm cov ciaj ciam av thiab lub teeb tawg tshwm sim los ntawm theem ob. Yog li ntawd, plzt muaj qhov ntsuas zoo lub teeb xa khoom. Plzt yog dav siv nyob rau hauv goggles rau shield nuclear tawg cov hluav taws xob, kev sib txuas lus kho qhov muag hloov kho, thiab lwm yam.
(2) Cov kab sib txawv ceramics: Central University of Technology ntawm kev ua haujlwm ntawm lub ntiaj teb tsis tshua muaj hluav taws xob ntawm zno varistor ceramics. Tom qab ZoGo varistor ceramics tau doped nrog lub ntiaj teb tsis tshua muaj oxideLa2o3, lawv cov volistor voltage vlma tus nqi nce ntau; Thaum lub doping tus nqi nce los ntawm 0.1% rau 10%, tus tsis yog tus neeg norefficient α ntawm lub ceramic txo los ntawm 20 rau 1, thiab yeej tsis muaj qhov tsis muaj qhov sib txawv. Yog li ntawd, rau zno ceramics, qis-conconstration tsis tshua muaj cua sov doping tuaj yeem nce nws cov voltor voltage muaj nuj nqis, tab sis muaj cov nyhuv me me ntawm cov nonffinear coefficiet; thiab high-concentration doping tsis pom muaj cov yam ntxwv sib txawv.
(3) Cov roj-rhiab ceramics: txij li xyoo 1970, tib neeg tau ua ntau yam kev tshawb fawb txog lub ntiaj teb tsis tshua muaj cov khoom siv roj ceramic zoo li zno,Daus2thiabFes2o3, thiab tau tsim tawm abo3 thiab A2BO4 tsawg lub ntiaj teb muaj cov khoom siv oxide. Cov txiaj ntsig tshawb fawb pom tias ntxiv lub ntiaj teb tsawg rau Zno tuaj yeem txhim kho nws cov rhiab rau cov propylene; ntxivTus kab khiavTxhawm rau SNO2 tuaj yeem tsim cov khoom sintered uas muaj kev nkag siab txog ethanol.
(4) thermistor ceramics: Barium Titanate (Batio3) yog qhov feem ntau tau kawm thiab dav siv cov thermistor ceramics. Thaum LA, CE, SM, DY ANT3 +, tsim kom muaj kev sib ntaus sib tua ntawm Ti4 +, yog li ntawd kev tiv thaiv cov ceramic tau txo qis; Txawm li cas los xij, yog hais tias doping tus nqi tshaj li qhov muaj nuj nqis, vim kev tsim ntawm BA2 + qhov ploj ntawm cov neeg nqa khoom, muaj kev sib cav sib ceg dhau los ua cov insulator.
(5) Cov av noo Pd0.91la0.09 (ZR0.65TI0.35) 0.92o3-itco3-itcoed, thiab txhim kho lawv lub zog, nws tseem yuav tsum tau ua kom muaj kev tshawb fawb txog kev tshawb fawb txog kev tiv thaivTsis tshua muaj ntiaj tebntxiv rau ntawm cov khoom muaj feem ntawm ceramics.
Peb raug tshwj xeeb hauv kev xa tawm cov khoom lag luam hauv av tsawg, los yuav qis hauv ntiaj teb cov khoom lag luam, txais tos rauTiv Tauj Peb
Sales@shxlchem.com; Delia@shxlchem.com
WhatsApp & Tel: 008613524231522; 0086 13661632459
Lub sij hawm Post: Feb-06-2025