Cov khoom lag luam
Siv alumina-yttrium oxide raws li cov sintering pab, tshwj xeeb tungsten carbide pob zeb thiab pob zeb tau siv los qhia tungsten carbide (WC) rau hauvSilicon NitrideCeramics los ntawm cov neeg kho tshuab pob milling, thiab cov tshuaj tua hluav taws xob tawm ntawm cov khoom siv hluav taws xob sai sai (thiab -Phase Silicon Nitride cov khoom siv tau npaj tau. Cov lus qhia ntawm tungsten carbide zoo txo qhov kev ua kom muaj zog ntawm theem kev hloov nag lossis kev txhawb nqa, thiab paub cov qauv ntawm silineded. Nrog rau kev nce ntawm tungsten carbide cov lus qhuab qhia ntxiv rau 7,90MPA, uas tau nce los ntawm 49.5%.
Cov khoom tsis muaj
| Teem nqi | N | Si | CA MIN |
O min |
Min | Al min | FE MIN |
| Si3N 485-99 | 32-39 | 55-60 | 0.25 | 1.5 | 0.3 | 0.25 | 0.25 |
Cov Khoom Siv Kev Sib Koom Tes
1.Ib cov khoom siv si3N4 radome nrog ib tug txheeb ze ntawm {2}} thiab zoo} kev mob siab ntawm cov huab cua N2 raws li kev tswj hwm huab cua. Lub nanopowder raw khoom muaj ntau npaum li cas ntawm sio2, uas tuaj yeem txhawb cov Sintering ntawm lub cev ntsuab thiab muaj kev cuam tshuam zoo rau cov porcelainain. Vim tias qhov kev nyab xeeb ntawm lub cev ntsuab, lub dielrictric contrent nce nrog qhov nce ntawm sintering kub ua ntej densification. Thaum qhov ntsuas kub yog siab dua 1 510 degree, tus naj npawb ntawm cov khoom siv sib npaug At the sintering temperature of 1 510 degree , the Si-O in the green body cannot be nitrided without embedding. Thaum graphite hmoov yog siv raws li cov khoom siv, carburizing tshwm sim, uas txo cov khoom diisheccule ntawm covSilicon NitrideCov khoom siv radome.
Cim npe nrov: Ib qho ntawm cov qib siab hlau Silicon Nitride, Suav Ib ntawm theem siab me ntawm Silicon Nitride Cov Chaw Tsim Khoom, Chaw muag khoom, Hoobkas