Ekhaya
Iimveliso
010203
Amalungu olwakhiwo lweCeramic (amalungu e-ceramic)
I-Fountyl inobuchule obungundoqo, iindawo ze-ceramic ziquka iityhubhu ze-ceramic, iintonga ze-ceramic, ii-substrates ze-ceramic, iipleyiti ze-ceramic, izikhonkwane ze-ceramic, iiplanga ze-ceramic, iivalvu zempompo ze-ceramic zeendawo ezahlukeneyo ze-ceramic zesakhiwo, ezisetyenziswa ngokubanzi kwiziko lokunyibilika, i-semiconductors, i-aerospace, i-valve yepompo. , amandla amatsha, imimandla yokulawula ulwelo, iindawo ezinxitywayo ngoomatshini.
Iiseramics zolwakhiwo ziikeramics eziphucukileyo ezinomatshini obalaseleyo, i-thermal kunye neempawu zemichiza ekuxhathiseni ubushushu obuphezulu, ukuxhathisa ukhukuliseko, ukumelana nokugqwala, ubunzima obuphezulu, amandla aphezulu, isantya esisezantsi sokuhamba, ezihlala zisetyenziswa kumacandelo ahlukeneyo olwakhiwo.
I-ceramics yesakhiwo inamandla amakhulu, ukuqina, ukugquma, ukushisa ubushushu, ukumelana nobushushu obuphezulu, ukuxhathisa i-oxidation, ukumelana nokugqwala, ukumelana nokunxiba, iimpawu zamandla obushushu obuphezulu, ngoko ke, kwimeko enzima kakhulu okanye iimeko zesicelo sobunjineli, uzinzo oluphezulu kunye neempawu ezibalaseleyo zomatshini. , kwishishini lezinto eziphathekayo liye latsala ingqalelo enkulu, uluhlu lwayo lokusetyenziswa nalo luyanda. Imfuno yokuchaneka okuphezulu, ukumelana nokunxiba okuphezulu, ukuthembeka okuphezulu komatshini kwishishini lehlabathi kunye nelasekhaya ukuba ngqongqo ngakumbi nangakumbi, ngoko ke imfuno yeemveliso ze-ceramic ibaluleke kakhulu, izinga lokukhula kwayo kwimakethi libaluleke kakhulu, kwi-metallurgy, i-aerospace, amandla. , oomatshini, imimandla ye-optics inezicelo ezibalulekileyo.
IiCeramics zethu eziZodwa zoLwakhiwo zibandakanya ezi Ndidi zilandelayo
1. IiCeramics zeSilicon Nitride
I-Silicon nitride ceramics luhlobo olutsha lweeseramics zobunjineli, ezingumahluko kwiiseramics eziqhelekileyo ze-silicate ukuba indibaniselwano ye-nitrogen kunye ne-silicon yangaphambili yeyokudityaniswa kweempawu ze-covalent bond, ngoko ke ineempawu zamandla aqinile okubopha kunye nokugquma okulungileyo. .
Amandla e-silicon nitride aphezulu kakhulu, ukuqina kwakhona kuphezulu kakhulu, yenye yezona zinto zinzima emhlabeni, ukumelana nobushushu buhle, amandla angagcinwa ukuya ku-1200 ° C ngaphandle kokuwa, kude kube ngu-1900 ° C uya kubola. , kwaye inokumelana nokukhula kweekhemikhali okumangalisayo, kodwa kunye nomgangatho ophezulu wokugquma umbane, Ukusebenza ngokubanzi kweentlobo ezahlukeneyo zeemveliso ze-silicon nitride ceramic eziveliswe yinkqubo ye-microwave sintering ifikelele kwinqanaba eliphezulu lamazwe ngamazwe.
2. IiCeramics zeAluminium Nitride
I-Theory conductivity ye-thermal conductivity yi-320W / m·k, malunga ne-80% ye-thermal conductivity yobhedu, ngelixa i-nitride ye-aluminium ine-dielectric ephantsi rhoqo, ukuchasana okuphezulu, ubuninzi obuphantsi kwaye isondele kwi-coefficient yokwandiswa kwe-thermal ye-silicon, ukusebenza okubanzi kungcono kune-Al2O3 , BeO, SiC ... njl., isetyenziselwa i-insulator ephezulu ye-thermal conductivity kunye ne-electronic substrate materials. Inkampani ivelisa iintlobo ngeentlobo zeemveliso ze-aluminium nitride ze-ceramic ezinoxinano olukhulu kune-3.25, kunye ne-thermal conductivity ye-120 ~ 200W / m · K, i-Aluminium nitride ceramics inokuveliswa kwiinkcukacha ezahlukeneyo ngokwemfuno.
3. IiCeramics zeAlumina
I-alumina ceramics (i-corundum yokwenziwa) yinto ethembisayo yesakhiwo sokushisa okuphezulu. Indawo yayo yokunyibilika iphezulu kakhulu, ingasetyenziselwa njengezinto eziphezulu ze-refractory, ezifana ne-crucible, i-tube yokushisa yokushisa ephezulu. Ukusebenzisa iingenelo zobulukhuni be-alumina, kunokwenzeka ukwenza oomatshini bokugaya i-corundum esetyenziswa kwibhubhoratri yokugaya izinto ezinobunzima obungaphantsi kwayo. Ngezinto eziluhlaza ezicocekileyo, ukusetyenziswa kobuchwepheshe obuphezulu, kunokwenza ii-alumina ceramics zicace, zinokuvelisa iityhubhu zesibane zesodium ezinoxinzelelo oluphezulu.
4. IiCeramics zeSilicon Carbide
I-Silicon carbide ceramics nayo iyinto ebalulekileyo yesakhiwo, luhlobo lwento enzima kakhulu, ubuninzi obuncinci, ngokwayo bune-lubricity, kunye nokumelana nokunxiba, ngaphezu kwe-hydrofluoric acid, ayifuni kunye nezinye i-acids inorganic, ukumelana nokugqwala; Ikwamelana ne-oxidation kumaqondo obushushu aphezulu. Ngaphezu koko, iyakwazi ukuxhathisa ukothuka okubandayo kunye ne-thermal, ifudunyezwe ngaphezulu kwe-1000 emoyeni, ipholile ngokukhawuleza kwaye ishushu kakhulu, kwaye ayiyi kudilika. Yisilicon nitride eneempawu ezintle kangangokuba isoloko isetyenziselwa ukwenza amacandelo oomatshini anje ngeebheringi, iiblade ze-iturbine, iiringi zokutywina ngoomatshini, kunye nokungunda okusisigxina.
5. IiCeramics ezinePorous
Nge-porosity ye-35-40% kunye nobukhulu be-pore ye-0.5-100um, ingasetyenziselwa ukuhlukana okuphefumlayo okanye okuqinileyo-ulwelo kunye nokuhlukana kwegesi. Yimathiriyeli ye-porous ceramic ephuculweyo.