Silicon nitride (Si3N4) daim hlau yog cov khoom tseem ceeb hauv ntau daim ntawv thov kev lag luam vim lawv cov khoom tshwj xeeb thiab ntau yam. Cov khoom siv ceramic no tau txais txiaj ntsig tseem ceeb rau nws cov khoom tshwj xeeb, thermal, thiab tshuaj lom neeg yam ntxwv.

Kev sib xyaw thiab cov qauv

Si3N4 daim hlau feem ntau yog tsim los ntawm silicon (Si) thiab nitrogen (N) atoms teem rau hauv cov qauv crystalline. Lub compound paub txog nws covalent bonding, uas ua rau nws robustness. Cov qauv crystalline muab Si3N4 daim hlau nrog zoo thermal stability, ua rau lawv haum rau cov ntawv thov uas muaj qhov kub thiab txias.

Mechanical Properties

Ib qho ntawm cov yam ntxwv tseem ceeb ntawm Si3N4 daim hlau yog lawv cov khoom siv dag zog zoo. Cov paib no nthuav tawm siab tawg toughness, hardness, thiab hnav tsis kam. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas siv tshuab ua haujlwm ntev yog qhov tseem ceeb. Kev lag luam xws li aerospace, automotive, thiab machinery manufacturing tau txais txiaj ntsig los ntawm kev siv Si3N4 daim hlau hauv cov khoom uas raug rau cov neeg kho tshuab kev nyuaj siab.

Thermal stability

Si3N4 daim hlau muaj qhov tshwj xeeb thermal conductivity thiab stability. Lawv tuaj yeem tiv taus qhov kub thiab txias, ua rau lawv haum rau kev siv hauv qhov chaw hnyav. Kev lag luam xws li metallurgy thiab iav tsim siv Si3N4 daim hlau nyob rau hauv cov txheej txheem kub, qhov twg cov ntaub ntawv ib txwm yuav fater.

Hluav taws xob rwb thaiv tsev

Cov khoom insulating ntawm Si3N4 daim hlau ua rau lawv muaj txiaj ntsig hauv kev siv hluav taws xob thiab hluav taws xob. Lawv yog siv los ua substrates rau cov khoom siv hluav taws xob, muab hluav taws xob rwb thaiv tsev thaum tswj xyuas thermal stability. Kev lag luam semiconductor feem ntau siv Si3N4 daim hlau hauv kev tsim cov khoom siv hluav taws xob sib xyaw thiab cov khoom siv hluav taws xob.

Tshuaj tiv thaiv

Si3N4 daim hlau tuaj yeem tiv taus tshuaj lom neeg corrosion. Cov cuab yeej no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev lag luam uas raug cov tshuaj corrosive ntau. Cov chaw tsim tshuaj thiab cov chaw soj nstuam siv Si3N4 daim hlau hauv cov khoom siv thiab cov khoom uas tuaj yeem tiv nrog cov tshuaj phem.

Daim ntawv thov ntawm Si3N4 Phaj

1. Cov cuab yeej txiav

Lub siab tawv thiab hnav tsis kam ntawm Si3N4 daim hlau ua rau lawv haum rau kev txiav cov cuab yeej hauv kev siv machining. Lawv pab txhim kho cov cuab yeej lub neej thiab kev ua haujlwm zoo.

2. Kub Exchangers

Kev lag luam uas xav tau kev sib pauv hluav taws xob zoo, xws li tsheb thiab hluav taws xob, siv Si3N4 daim hlau hauv cov tshuab hluav taws xob sib hloov.

3. Cov khoom siv hluav taws xob

Si3N4 daim hlau ua cov substrates rau cov khoom siv hluav taws xob, muab cov rwb thaiv tsev thiab thermal stability hauv kev tsim cov semiconductors.

4. Molten Hlau tuav

Qhov zoo tshaj plaws thermal stability ntawm Si3N4 daim hlau ua rau lawv haum rau tuav molten hlau hauv kev lag luam xws li foundries thiab hlau casting.

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