Hlau-ceramic composites yog ib qho khoom siv rau kev lag luam substrate cov khoom lag luam. Alumina hmoov txheej li Insulating ceramic coatings yog thermally sprayed on hlau daim hlau xws li Kovar, tooj liab, txhuas, thiab steel. Cov hlau uas muaj cov thermal conductivity tau dissipate cov cua kub generated los ntawm cov dej tshav kub thaum cov kab mob ceramic muab kev zoo Dielectric rwb thaiv tsev zog. Kev siv Alumina hmoov txheej rau ntawm lub phaj tooj liab ua piv txwv, tag nrho thermal conductivity yog 5 zaug siab dua tag nrho cov thermal conductivity ntawm alumina txheej sintered ntawm lub phaj phaj nrog tib lub thickness, uas yog heev conducive rau lub dissipation heat thiab cov lub hwj chim ntawm lub rooj sib tham ntawm kev sib xyuas.
Cov khoom L-22, L-23 thiab L-24 alumina yog tsim los ntawm peb cov tuam txhab zoo tshaj plaws rau cov khoom sib xws uas ua los ntawm cov txheej txheem sintering. Cov tshuaj lom neeg muaj pes tsawg leeg thiab lub cev muaj zog ruaj khov, qhov loj npaum li cas yog tswj hwm, tus qauv morphology yog li niaj zaus thiab cov hmoov ntws Zoo sib deev, zoo dispersion. Nrog cov ntshav, tawg, nplaim, cov khoom siv tshuaj pleev xim pwm, xws li txau mob siab, tsis muaj porosity, siab ua kom muaj zog, zoo seismic thiab cua sov. Cov txheej ntawd muaj cov khoom zoo ntawm cov khoom hnyav, kev sib zog ua haujlwm, kev kub siab, kev tiv thaiv thiab kev rwb thaiv tsev. Nws yog dav siv hauv textile, metallurgy, electronics, tshuaj, aviation, agricultural machinery thiab roj av teb.
Cov ntaub ntawv zoo | AL-M43 | L-22 | L-23 | L-24 | |
Tshuaj Txhaum Tshuaj | LOI (%) | 0.05 | 0.05 | 0.05 | 0.05 |
SiO2 (%) | 0.072 | 0.036 | 0.038 | 0.036 | |
Fe2O3 (%) | 0.013 | 0.020 | 0.018 | 0.016 | |
Na2O (%) | 0.04 | <> | <> | <> | |
Al2O3 (%) | 99.9 | > 99.9 | > 99.9 | > 99.9 | |
Qhov loj ntawm α-crystal | (um) | 2 ~ 3 | 2 ~ 3 | 2 ~ 3 | 2 ~ 3 |
Txhais li cas Particle Size (um) | 4.5 | 4.4 | 4.7 | 4.6 | |
Thawj koom ruam (cm3 / g) | 1.533 | 1.526 | 1.563 | 1.578 | |
α- Al2O3 ( % ) | 96.4 | 96.8 | 96.4 | 96.6 | |
Ntsuab Ceev (g / m3) | 2.27 | 2.28 | 2.27 | 2.27 | |
Ntsuab Ceev (g / m3) | 3.67 | 3.66 | 3.67 | 3.67 | |
Tawm Shurinkage (%) | 15 | 15 | 15 | 15 | |
Cim npe nrov: alumina hmoov txheej, lwm tus neeg, khoom, nqe, lub neej