99.99% Ceramic toughened nano-alumina
Angagwiritsidwe ntchito ziwiya zadothi zinchito, ziwiya zadothi structural, ziwiya zadothi mandala, makina nsalu.
1. Chifukwa cha superplasticity ya nano-alumina powder, imathetsa zofooka zamtundu wa ntchito zomwe zimakhala zochepa chifukwa cha kutentha kwapang'onopang'ono. Zina mwa izo, nano-aluminium oxy-carbide (SiC) nanocomposites ndizodziwika kwambiri, ndipo mphamvu zawo zosinthika zimachokera ku The single-phase alumina ceramics yawonjezeka kuchokera ku 300-400 MPa kufika ku 1 GPa, ndipo kulimba kwa zinthuzo kumawonjezeka ndi zambiri. kuposa 40%.
2. Kukhazikika kwa kutentha: Kuwonjezera kwa nano-aluminium ku gawo lapansi la ceramic sikuti kumangowonjezera ntchito ya sintering ya gawo lapansi, komanso kumapangitsanso kuti kutentha kwazitsulo za aluminiyamu zikhale bwino, ndipo kukhazikika kwa kutentha kumasinthidwa ndi 2-3 nthawi.
3. Kachulukidwe: Pogwiritsa ntchito ufa wa extrusion, nano-α-Al2O3 ufa ukhoza kudzazidwa mu pores wa micron alumina ufa, womwe umachepetsa kukula kwa pore; kupanikizika kumapangidwira kumawonjezeka, ndipo kuchuluka kwa pores kumatha kuchepetsedwa, potero kuwongolera Kachulukidwe ka miluza ya ceramic kumapangitsa kuti kachulukidwe ndi makina amachitidwe a aluminiyamu a ceramic atatha kupukuta.
4. Kuchepetsa kutentha kwa sintering: Kuwonjezera kwa nano-a-Al2O3 kumalimbikitsa ntchito ya sintering ndipo kumathandiza kuchepetsa kutentha kwa sintering. Kutentha kwa sintering ndi 1450 ° C, kulimba kwa flexural ndi kulimba kwa fracture kumafika pamlingo waukulu.
5. Kuwonjezera pang'ono kwa nano-a-Al2O3 kungathe kusintha bwino makina azinthu. Ceramic ya alumina imatenthedwa pa 1450 ° C. Pamene ndalama zowonjezera ndi 10%, mphamvu yosinthika ndi 415 mPa ndipo kulimba kwa fracture ndi 4.1 MPa · m^1. /2.
Kuyendera | Standard |
Chitsanzo | DC-Al2O3-30 |
Molecular formula | Al2O3 |
Kunja | White ufa |
Mawonekedwe a Crystal | α gawo |
Tinthu kukula | 30-50nm |
Malo enieni a BET | 10-30 m2/g |
Zamkatimu | ≥99.99% |
Chithandizo chapamwamba | Ayi |
Kuwotcha kutaya |
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1. | Nano γ alumina |
2. | Nano α alumina |
3. | Nano aluminium hydroxide |
4. | Batire ya lithiamu nano-alumina |
5. | Ceramic toughened nano-alumina |
6. | Thermally conductive mkulu chiyero alumina |
7. | Wopukutidwa nano-aluminium |
8. | Paint nano alumina |
9 . | Nano alumina kubalalitsidwa |
10. | Al 50nm 99.9% |