Ukulungisa u-5% kuya ku-10% (ingxenyana yobuningi) i-Al2O3 engxenyeni ye-matrix yesithando somlilo izitini ze-carbon/graphite (amabhulokhi ekhabhoni) kuthuthukisa kakhulu ukumelana nokugqwala kwensimbi encibilikisiwe futhi wukusetshenziswa kwezitini ze-aluminium carbon kumasistimu okwenza insimbi. Okwesibili, izitini ze-aluminium carbon nazo zisetshenziswa ekusetshenzisweni kwensimbi encibilikisiwe kanye nemigodi yompompi.
Izitini ze-Aluminium carbon for pretreatment yensimbi encibilikisiwe
Izitini ze-aluminium silicon carbide zisetshenziswa kakhulu ezintweni zokuthutha insimbi encibilikisiwe njengamathangi ensimbi encibilikisiwe. Kodwa-ke, uma lolu hlobo lwezinto eziphikisayo lusetshenziswa emathangeni amakhulu ensimbi encibilikisiwe nezixube zensimbi, futhi luhlangabezana nezimo ezinzima zokushisisa nokupholisa, lujwayele ukuqhekeka, okuholela ekuxebukeni kwesakhiwo. Ngaphezu kwalokho, ngenxa yokuthi izitini ze-Al2O3-SiC-C ezisetshenziswa emathangeni amakhulu ensimbi ashisayo nezixube zensimbi zivame ukuba nekhabhoni engu-15% kanye ne-thermal conductivity efinyelela ku-17~21W/(m·K) (800℃), lapho. ukuncishiswa Izinga lokushisa lensimbi encibilikisiwe kanye nenkinga yokukhubaza amashidi ensimbi amathangi amakhulu ensimbi ancibilikisiwe kanye nezimoto ezixutshwa. I-countermeasure ukufeza ukuqhutshwa kwe-thermal okuphansi ngokususa i-SiC, ingxenye ye-thermal conductive kakhulu, ngenkathi kunciphisa okuqukethwe kwe-graphite nokucwenga i-graphite.
Ngocwaningo oluyisisekelo, kuphetha ngokuthi:
(1) Lapho okuqukethwe kwe-graphite (ingxenye enkulu) ezitini ze-aluminium carbon ingaphansi kuka-10%, isakhiwo sayo senhlangano siqukethe i-Al2O3 eyenza i-matrix eqhubekayo, futhi i-carbon igcwaliswa ku-matrix ngendlela yamaphoyinti enkanyezi. Ngalesi sikhathi, i-thermal conductivity λ yesitini se-aluminium carbon ingabalwa cishe ngefomula (1)
Kufomula, i-λa yi-thermal conductivity ye-Al2O3; I-Vc iyingxenyana yevolumu yegraphite. Lokhu kubonisa ukuthi ukuqhutshwa kokushisa kwezitini ze-aluminium carbon akuhlangene ne-thermal conductivity ye-graphite.
(2) Lapho i-graphite icwengisiswa, ukuqhutshwa kokushisa kwe-aluminium carbon brick kunokuncika okuncane ezinhlayiyeni ze-graphite.
(3) Ezitini ezinekhabhoni ephansi ye-aluminium-carbon, lapho i-graphite icwengisiswa, kungakhiwa i-matrix ebophayo eqinile, engathuthukisa ukumelana nokugqwala kwezitini ze-aluminium-carbon.
Lokhu kubonisa ukuthi izitini ze-carbon A aluminium carbon ephansi zingakwazi ukuzivumelanisa nezimo zokusebenza zamathangi amakhulu ensimbi ashisayo kanye nezimoto zokuxuba insimbi ohlelweni lwensimbi.
.
Isikhathi sokuthumela: Feb-27-2024
