Cov khoom thiab kev siv tseem ceeb ntawm cov tshuaj tiv thaiv-sintered silicon carbide

Cov tshuaj tiv thaiv-sintered silicon carbide zog thiab kev siv tseem ceeb? Silicon carbide kuj tseem hu ua carborundum lossis fireproof xuab zeb, yog ib qho inorganic compound, muab faib ua ntsuab silicon carbide thiab dub silicon carbide ob. Koj puas paub cov khoom thiab kev siv tseem ceeb ntawm silicon carbide? Niaj hnub no, peb yuav qhia txog cov khoom thiab kev siv tseem ceeb ntawm silicon carbide.

Reactive sintering silicon carbide yog siv quartz xuab zeb, calcined petroleum coke (los yog thee coking), ntoo slag (tsim ntsuab silicon carbide yuav tsum tau ntxiv cov zaub mov ntsev) thiab lwm yam raw cov ntaub ntawv, los ntawm cov hluav taws xob cua sov rauv tas mus li kub smelting.

Cov khoom ntawm cov tshuaj tiv thaiv-sintered silicon carbide:

1. Thermal conductivity thiab thermal expansion coefficient ntawm silicon carbide. Raws li ib yam ntawm cov khoom siv refractory, carbonized cib muaj kev tiv thaiv zoo rau kev poob siab. Qhov no yog feem ntau tshwm sim nyob rau hauv nws muaj zog thermal conductivity (kub hloov coefficient) thiab kuj tsawg coefficient ntawm thermal expansion.

2, cov conductivity ntawm silicon carbide. Silicon carbide yog cov khoom siv semiconductor, nws cov conductivity sib txawv nrog cov hom thiab cov impurities nkag mus rau hauv crystallization, thiab qhov tsis kam yog nyob nruab nrab ntawm 10-2-1012Ω·cm. Ntawm lawv, txhuas, nitrogen thiab boron muaj kev cuam tshuam zoo rau kev ua haujlwm ntawm silicon carbide, thiab cov conductivity ntawm silicon carbide nrog ntau aluminium nce ntau.

3. Kev ua haujlwm ntawm silicon carbide. Kev ua haujlwm ntawm silicon carbide hloov nrog qhov hloov pauv ntawm qhov kub thiab txias, tab sis nyob rau hauv ib qho kub thiab txias yam ntxwv ntawm cov hlau resistor yog thim rov qab. Kev sib raug zoo ntawm kev tiv thaiv thiab kub ntawm silicon carbide yog qhov nyuaj dua. Cov conductivity ntawm cov tshuaj tiv thaiv-sintered silicon carbide nce nrog qhov kub thiab txias nce mus rau ib qho nqi, thiab cov conductivity qis dua thaum kub nce ntxiv.

Kev siv ntawm silicon carbide:

1, hnav-tiv taus cov ntaub ntawv - feem ntau yog siv los ua cov xuab zeb log, sib tsoo cov ntawv xuab zeb, whetstone, sib tsoo log, sib tsoo muab tshuaj txhuam thiab cov khoom siv hluav taws xob photovoltaic hauv cov cell photovoltaic, cov cell photovoltaic thiab cov khoom nto sib tsoo, sib tsoo thiab polishing.

2, high-end refractory khoom - yuav siv tau raws li metallurgical kev lag luam deoxidizer thiab corrosion resistant cov ntaub ntawv, kom tas mus li kub kub kiln prefabricated Cheebtsam, taag qhov chaw, thiab lwm yam.

3, kev ua haujlwm ceramics - tsis tsuas yog tuaj yeem txo qhov ntim ntawm kiln, tab sis kuj txhim kho cov khoom lag luam kiln zoo, txo lub sijhawm voj voog, yog cov khoom siv zoo tshaj plaws rau ceramic glaze sintering, tsis tu ncua kub tsis muaj oxide ceramics, xav txog sintered porcelain.

4, tsis tshua muaj hlau - hlau thiab hlau lag luam, metallurgical kev lag luam concentrator teb, muaj ib daim ntawv thov.

5, lwm yam - siv los ua kom deb-infrared tawg txheej lossis silicon carbide phaj far-infrared tawg tshuab ziab khaub ncaws.

Silicon carbide vim yog cov khoom siv tshuaj lom neeg zoo, kev kub siab hloov pauv coefficient, me me linear expansion coefficient, zoo hnav tsis kam, ntxiv rau hnav cov ntaub ntawv tiv taus, muaj qee qhov kev siv tseem ceeb, xws li: nrog cov txheej txheem tshiab rau silicon carbide hmoov kua nplaum hauv lub centrifugal impeller los yog lub tog raj kheej lub cev kab noj hniav, tuaj yeem txhim kho kev hnav tsis kam thiab ua kom lub neej ua haujlwm ntawm 1 mus rau 2 zaug; Siv los ua cov khoom siv qib siab refractory, kub kub tsis kam, me me, lub teeb yuag thiab lub zog siab, kev tiv thaiv ib puag ncig thiab txuag hluav taws xob yog pom tseeb. Tsawg-qib silicon carbide (muaj li 85% SiC) yog ib tug zoo deoxidizing tus neeg sawv cev, uas yuav siv tau los ua kom cov hlau ua tus nqi, thiab yog tsim nyog rau manipulating cov muaj pes tsawg leeg thiab txhim kho cov hlau zoo. Tsis tas li ntawd, silicon carbide kuj tseem siv los ua ntau cov khoom siv hluav taws xob cua sov silicon molybdenum pas nrig.