Dab tsi yog Nitride Ceramics?

Nitride Ceramics yog ib chav kawm ntawm cov khoom siv ceramic uas muaj cov khoom zoo heev.
Nitride ceramics feem ntau suav nrog silicon nitride (Si₃N₄), txhuas nitride (AlN), boron nitride (BN), thiab lwm yam.
Silicon nitride ceramics muaj cov khoom siv zoo heev. Nws hardness yog siab heev, thib ob tsuas yog pob zeb diamond thiab cubic boron nitride, thiab tuaj yeem tiv taus hnav thiab khawb. Nws lub zog kuj tseem muaj zog heev, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias, nws tseem tuaj yeem tuav lub zog zoo, uas ua rau nws muaj ntau yam kev thov rau kev cia siab rau hauv cov khoom siv hluav taws xob kub. Tsis tas li ntawd, silicon nitride ceramics kuj muaj qhov zoo corrosion kuj thiab tuaj yeem tiv taus qhov yaig ntawm feem ntau cov kua qaub, alkalis thiab ntsev. Nws muaj cov thermal expansion coefficient tsawg thiab zoo thermal txuam nrog lwm cov ntaub ntawv. Nws tuaj yeem siv los tsim cov khoom uas ua haujlwm ntawm qhov kub thiab txias, xws li lub cav qhov chaw, turbine hniav, thiab lwm yam.
Aluminium nitride ceramics yog cov khoom siv ceramic nrog siab thermal conductivity. Nws cov thermal conductivity yog siab dua li ntawm feem ntau cov ntaub ntawv ceramic, thiab tuaj yeem muab piv rau qee cov hlau. Qhov no ua rau aluminium nitride ceramics tau siv dav hauv kev ntim khoom hluav taws xob, thiab tuaj yeem siv los ua kom sov dissipation substrates rau cov khoom siv hluav taws xob muaj zog. Tsis tas li ntawd, aluminium nitride ceramics kuj muaj cov khoom zoo rwb thaiv tsev, siab zog thiab hardness, thiab zoo corrosion kuj.
Boron nitride ceramics muaj ntau cov qauv siv lead ua, ntawm cov hexagonal boron nitride (h-BN) muaj cov txheej txheem txheej zoo li graphite, nrog rau nws tus kheej zoo lubricating zog thiab machinability. Cubic boron nitride (c-BN) muaj qhov tawv tawv heev thiab tuaj yeem siv los ua cov cuab yeej superhard thiab abrasives. Boron nitride ceramics kuj muaj qhov kub thiab txias tsis kam, rwb thaiv tsev thiab corrosion kuj.
Txoj kev npaj tseem ceeb ntawm nitride ceramics yog cov tshuaj tiv thaiv sintering, kub nias sintering, roj siab sintering, thiab lwm yam. Cov txheej txheem no tuaj yeem npaj cov khoom siv nitride ceramic nrog cov khoom sib txawv thiab microstructures.
Feem ntau, nitride ceramics ua lub luag haujlwm tseem ceeb hauv aerospace, electronics, machinery, chemical industry thiab lwm yam kev lag luam nrog lawv cov khoom zoo heev. Nrog rau kev nce qib ntawm kev siv thev naus laus zis, kev ua haujlwm ntawm nitride ceramics yuav txuas ntxiv txhim kho thiab cov peev txheej ntawm daim ntawv thov yuav txuas ntxiv.
Yog tias koj xav paub ntau ntxiv txog nitride ceramics, koj tuaj yeem sab laj nrog peb cov neeg ua haujlwm pabcuam cov neeg siv khoom, peb yuav pabcuam rau koj tag nrho 24 teev hauv ib hnub!