Cov khoom siv sib xyaw yog cov khoom siv ntau theem uas yog tsim los ntawm ob lossis ntau yam khoom nrog cov tshuaj sib txawv. Cov khoom siv no tsis tsuas yog tswj hwm cov yam ntxwv ntawm cov khoom siv ib leeg xwb, tab sis kuj ua rau txhua qhov kev kawm los ntawm ib leeg thiab sib koom ua ke los tsim cov yam ntxwv zoo dua li cov khoom qub.
Cov khoom siv sib xyaw ua ke muaj cov theem matrix thiab theem kev txhawb zog. Tus qub yog qhov tseem ceeb ntawm cov khoom thiab ua lub luag haujlwm hauv kev sib txuas lus; tom kawg ua lub luag haujlwm hauv kev txhim kho hardness, lub zog, nruj thiab hnav tsis kam. Thiab cov khoom siv hlau matrix ua los ntawm kev ntxiv cov khoom siv tawv tawv (xws li SiC, AlN, Al2O3, thiab lwm yam) rau lub teeb thiab tawv hlau matrix (feem ntau yog txhuas lossis aluminium alloy) muaj qhov ntom ntom, muaj zog tshwj xeeb thiab elasticity. Nws muaj qhov zoo ntawm cov qauv siab, me me thermal expansion coefficient, zoo kub tsis kam thiab qaug zog tsis kam, muaj zog hnav tsis kam thiab kev co kuj, thiab cov txheej txheem kev npaj yooj yim, yog li nws tau siv dav hauv cov khoom hnav-tiv taus xws li tsheb cav lub tog raj kheej liner. thiab pistons. Machinery, metallurgy, bearings, tsheb thauj mus los, tshuaj lom neeg kev lag luam, kev tsim kho, aerospace thiab lwm yam kev lag luam sectors. Txawm li cas los xij, cov txheej txheem ntawm cov hlau matrix puas cov ntaub ntawv tsis zoo. Txawm hais tias muaj ntau txoj kev ua haujlwm tshiab tau tsim, xws li EDM, laser ua thiab kev ua haujlwm siab dej dav hlau, vim yog cov khoom siv kim heev thiab kev ua haujlwm tsis zoo, cov txheej txheem kev ua haujlwm ib txwm muaj (xws li: tig, drilling, milling, xuas nrig ntaus, reaming. , tho txawv thiab sib tsoo, thiab lwm yam) tseem yog lub ntsiab lus tseem ceeb ntawm kev ua haujlwm tam sim no. Pob zeb diamond yog cov khoom hnyav tshaj plaws hauv ntiaj teb, nws cov microhardness tuaj yeem ncav cuag 10000HV, hnav zoo heev, ntse txiav ntug, me me ntug roughness tus nqi, tsis tshua muaj kev sib txhuam coefficient, zoo adhesion tsis kam, siab thermal conductivity, txiav nws tsis yooj yim rau lo rau lub cuab tam thiab tsim cov ntug built-up. Nws yog qhov siv ntau tshaj plaws vim nws txoj haujlwm ua haujlwm siab, lub neej ntev thiab kev ua haujlwm zoo thaum ua cov hlau matrix composites. nyiam
